FTB-200 User Guide

COMPACT MODULAR PLATFORMFTB-200 NETWORK TESTING USER GUIDE Copyright © 2006 EXFO Electro-Optical Engineering Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, be it electronically, mechanically, or by any other means such as photocopying, recording or otherwise, without the prior written permission of EXFO Electro-Optical Engineering Inc. (EXFO). Information provided by EXFO is believed to be accurate and reliable. However, no responsibility is assumed by EXFO for its use nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent rights of EXFO. EXFO’s Commerce And Government Entities (CAGE) code under the North Atlantic Treaty Organization (NATO) is 0L8C3. The information contained in this publication is subject to change without notice. Trademarks EXFO’s trademarks have been identified as such. However, the presence or absence of such identification does not affect the legal status of any trademark. Units of Measurement Units of measurement in this publication conform to SI standards and practices. Patents FASTEST is protected by US patent(s) 5,305,078 and/or 5,455,672. EXFO’s Universal Interface is protected by US patent 6,612,750. ii FTB-200 Contents Contents Certification Information ....................................................................................................... ix 1 Introducing the FTB-200 .............................................................................. 1 Main Features .........................................................................................................................1 LED Panel Description .............................................................................................................4 Keypad Description .................................................................................................................5 Card Reader and Ports ............................................................................................................6 Power Sources ........................................................................................................................7 Conventions ............................................................................................................................8 2 Safety Information ....................................................................................... 9 Laser Safety information .........................................................................................................9 Electrical Safety Information .................................................................................................12 3 Getting Started with Your Unit ................................................................. 15 Installing or Upgrading the Applications ..............................................................................15 Inserting and Removing Test Modules .................................................................................17 Installing a USB Keyboard or Mouse .....................................................................................22 Configuring the Pinter .........................................................................................................23 Turning On or Off the Unit ....................................................................................................25 Starting Module Applications ...............................................................................................26 4 Setting Up Your Unit .................................................................................. 27 Recalibrating the Touchscreen ..............................................................................................27 Adjusting Microphone and Speaker ......................................................................................28 Adjusting Brightness .............................................................................................................29 Selecting the Language of Operation ...................................................................................30 Setting Date and Time Formats .............................................................................................31 Selecting the Startup Application .........................................................................................32 Configuring the Shortcut Buttons .........................................................................................34 Setting Other Parameters ......................................................................................................34 Compact Modular Platform iii Contents 5 Using the Built-In Power Meter and VFL ...................................................35 Accessing the Built-In Power Meter ......................................................................................35 Nulling Electrical Offsets .......................................................................................................37 Setting Thresholds and Correction Factors ............................................................................38 Setting Reference Values on Your Power Meter ....................................................................40 Measuring Power or Loss ......................................................................................................41 Reloading Power Meter Results ............................................................................................44 Clearing Power Measurements from the Display ..................................................................45 Creating and Printing a Results Report .................................................................................46 Identifying Fiber Faults Visually with the VFL ........................................................................49 6 Inspecting Fibers with a Probe ..................................................................51 Inspecting a Fiber End ..........................................................................................................51 Capturing an Image ..............................................................................................................53 7 Introducing the OTDR .................................................................................55 Main Features .......................................................................................................................56 Trace Acquisition Modes .......................................................................................................57 Data Post-Processing ............................................................................................................57 Bidirectional Averaging Utility ..............................................................................................57 Available OTDR Models .........................................................................................................58 OTDR Basic Principles ............................................................................................................60 8 Setting Up Your Optical Time Domain Reflectometer ..............................63 Installing the EXFO Universal Interface (EUI) .........................................................................63 Cleaning and Connecting Optical Fibers ...............................................................................64 Naming Trace Files Automatically ........................................................................................65 9 Testing Fibers in Auto Mode ......................................................................67 Acquiring Traces ...................................................................................................................67 Activating or Deactivating the Fault Finder Features .............................................................71 10 Testing Fibers in Advanced Mode ..............................................................73 Setting the Autorange Acquisition Time ..............................................................................77 Setting the IOR, RBS Coefficient and Helix Factor .................................................................78 Setting Distance Range, Pulse Width and Acquisition Time ..................................................80 Enabling the High-Resolution Feature ...................................................................................84 Enabling or Disabling Analysis After Acquisition ...................................................................85 Setting Pass/Fail Thresholds ..................................................................................................86 Setting a Default Span Start and Span End ...........................................................................88 iv FTB-200 Contents 11 Testing Fibers in Template Mode ............................................................... 91 Template Principle .................................................................................................................91 Restrictions of Template Mode ..............................................................................................92 Acquiring the Reference Trace ..............................................................................................94 Acquiring Traces in Template Mode ......................................................................................95 Selecting a Reference Trace .................................................................................................101 12 Customizing Your Optical Time Domain Reflectometer ......................... 103 Customizing the Acquisition Distance Range Values ...........................................................103 Customizing the Acquisition Time Values ...........................................................................105 13 Analyzing Traces and Events ................................................................... 107 Opening Trace Files .............................................................................................................107 Trace Display and Events Table Description .........................................................................109 Locating Events in the Trace Display and Events Table ........................................................113 Customizing the Events Table .............................................................................................114 Setting Trace Display Parameters ........................................................................................116 Selecting the Measurement Unit .........................................................................................118 Displaying or Hiding a Trace ...............................................................................................121 Clearing Traces from the Display .........................................................................................123 Automatically Zooming in on the Fiber Span ......................................................................124 Using Zoom Controls ..........................................................................................................125 Viewing and Modifying Current Trace Settings ...................................................................127 Inserting Events ..................................................................................................................132 Deleting Events ...................................................................................................................134 Setting the Analysis Detection Thresholds ..........................................................................136 Analyzing or Reanalyzing a Trace ........................................................................................139 Analyzing the Fiber on a Specific Fiber Span .......................................................................141 Swapping Traces .................................................................................................................142 14 Analyzing the Results Manually .............................................................. 143 Using Markers .....................................................................................................................143 Getting Event Distances and Relative Powers ......................................................................145 Getting Event Loss (Four-Point and Least-Square Approximation) ......................................146 Getting Attenuation (Two-Point and Least-Square Approximation) ....................................150 Getting Reflectance ............................................................................................................152 Getting Optical Return Loss (ORL) .......................................................................................153 15 Managing Trace Files from the OTDR Test Application .......................... 155 Saving a Trace in a Different Format ...................................................................................155 OTDR Trace File Compatibility .............................................................................................156 Copying, Moving, Renaming or Deleting Trace Files ..........................................................158 Compact Modular Platform v Contents 16 Creating and Printing Trace Reports .......................................................159 Documenting Results ..........................................................................................................159 Printing a Report ................................................................................................................162 17 Using the OTDR as a Light Source or VFL ................................................165 18 Description of Event Types ......................................................................169 Span Start ..........................................................................................................................169 Span End ...........................................................................................................................169 Continuous Fiber ...............................................................................................................170 End of Analysis ..................................................................................................................171 Non-Reflective Event ..........................................................................................................172 Reflective Event .................................................................................................................173 Positive Event .....................................................................................................................174 Launch Level ......................................................................................................................175 Fiber Section ......................................................................................................................176 Merged Reflective Event ....................................................................................................177 Echo ..................................................................................................................................179 Reflective Event (Possible Echo) .........................................................................................180 19 Introducing the FTB-3930 MultiTest Module ...........................................181 Main Features .....................................................................................................................181 Typical Applications ............................................................................................................182 20 Customizing Your MultiTest Module ........................................................183 21 Setting Up Your MultiTest Module ...........................................................185 Installing the EXFO Universal Interface (EUI) .......................................................................185 Cleaning and Connecting Optical Fibers .............................................................................186 Setting Autonaming Scheme ..............................................................................................187 Setting Pass/Fail Thresholds ................................................................................................189 22 Measuring Power or Loss .........................................................................193 Defining the List of Favorite Wavelengths ...........................................................................194 Nulling Electrical Offsets .....................................................................................................196 Referencing Your Power Meter to a Source .........................................................................197 Measuring Power or Loss ....................................................................................................200 23 Measuring Optical Return Loss ................................................................203 Performing ORL Reference and Setting ORL Zero Value ......................................................205 Performing and Saving ORL Measurements ........................................................................207 vi FTB-200 .258 Verifying Your OTDR ...............................................................................................................................259 Recalibrating the Unit ..........................................................................................................................................................268 32 Troubleshooting ..................................................................................................... 231 Sending and Receiving Text Messages ........................276 Compact Modular Platform vii ......................................... 223 Viewing and Deleting Results ......................................................................................................219 25 Managing Test Results ..................................................................................................212 Referencing Units for FASTEST .........................................223 Customizing Result Display ................................................................................248 31 Maintenance ................253 Recalibrating the Battery ...................................................................................252 Recharging the Main Battery ...................................... 249 Cleaning EUI Connectors ...........................250 Cleaning Detector Ports ...............................................267 Recycling and Disposal (Applies to European Union Only) ........................................................225 26 Using a Light Source ....................................................................................................................243 Performing a Trace Route Test ................234 29 Managing Data ....................................................................................................................................................................................................................................................................................................................................................................................................................246 Exporting the Results .............................................. 269 Solving Common Problems .272 Finding Information on the EXFO Web Site .............275 Contacting the Technical Support Group ..........................................................................................................................276 Transportation .......................................................................................................Contents 24 Performing Automated IL/ORL/Length Measurements (FASTEST) ....................................................... 211 Setting Up the FASTEST .........................................................271 MultiTest .....................................................................255 Replacing Battery .........................................................................................................214 Performing the FASTEST ............................... 227 27 Identifying Fiber Faults Visually ...................................................231 Communicating by Voice .................. 237 30 Testing Network Connections .....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................269 OTDR ..................................................................................................... 243 Performing a Ping Test ................................................................................ 229 28 Communicating with Other Users ............................................................................ ................................................279 EXFO Service Centers Worldwide ..........278 Service and Repairs ..................................................................................278 Exclusions .......284 Index ....................................................................................................................277 Liability ..................................................................278 Certification ........................281 OTDR ...........................................................................................................................................277 General Information ......................................................................................................................................................................................................................................................................................................................................................................................................................................281 FTB-200 Compact Modular Platform .....280 A Technical Specifications ...................................................................................................................................................................................................Contents 33 Warranty .................................................................285 viii FTB-200 ..........282 MultiTest .............................................................................................................. the United States. compliance verification tests are systematically performed on most EXFO equipment.Certification Information Certification Information F. Information Electronic test equipment is subject to the EMC Directive in the European Union.C. Information Electronic test equipment is exempt from Part 15 compliance (FCC) in the United States. However. This unit has undergone extensive testing according to the European Union Directive and Standards. measurement. CSA Information This unit is certified by the CSA (certificate number 162451) and was evaluated according to applicable CSA and UL standards (as confirmed by “C-US” mark) as well as applicable IEC standards for use in Canada.C. and control equipment. and other countries. The EN61326 standard prescribes both emission and immunity requirements for laboratory. Compact Modular Platform ix . The Low Voltage Directive 89/336/EEC . and Laboratory Use. Quebec (Quebec) Canada February 17. Quebec (Quebec) Canada G1M 2K2 (418) 683-0211 Industrial Scientific Equipment FTB-150 Compact OTDR and FTB-200 Compact Modular Platform Equipment Type/Environment: Trade Name/Model No. requirements. Manufacturer Signature: Full Name: Stephen Bull. and user’s guide Electrical Equipment for Measurement. the undersigned. 2006 x FTB-200 .The EMC Directive EXFO ELECTRO-OPTICAL ENG. Part 1: General Requirements.Certification Information DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: 73/23/EEC . E.EMC Requirements I. 400 Godin Avenue.: Standard(s) to which Conformity is Declared: EN 61010-1:2001 EN 55022: 1998/ A2: 2003 EN 60825-1:1994 / A2: 2001 EN 61326:1997/ A3: 2003 Safety Requirements for Electrical Equipment for Measurement. Control and Laboratory Use . Control. Limits and Methods of Measurement of Radio Disturbance Characteristics of Information Technology Equipment. Eng Position: Address: Date: Vice-President Research and Development 400 Godin Avenue. hereby declare that the equipment specified above conforms to the above Directive and Standards. Safety of laser products – Part 1: Equipment classifications. Control and Laboratory Use – EMC Requirements I.The EMC Directive EXFO ELECTRO-OPTICAL ENG. Vanier (Quebec) Canada G1M 2K2 (418) 683-0211 Industrial Scientific Equipment FTB-7000B. hereby declare that the equipment specified above conforms to the above Directive and Standards. 400 Godin Avenue. and user’s guide Limits and methods of measurement of radio disturbance characteristics of information technology equipment Electrical Equipment for Measurement. E. FTB-7000D.Certification Information DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: 73/23/EEC . Eng Position: Address: Date: Vice-President Research and Development 400 Godin Avenue Vanier.: Standard(s) to which Conformity is Declared: EN 60825-1:1994 / A2: 2001 EN 55022: 1998/ A1: 2000 EN 61326:1997/ A2: 2001 Safety of laser products – Part 1: Equipment classifications. requirements. Canada December 12. FTB-74000C Optical Time Domain Reflectometer Equipment Type/Environment: Trade Name/Model No. Manufacturer Signature: Full Name: Stephen Bull. 2003 Compact Modular Platform xi .The Low Voltage Directive 89/336/EEC . Quebec. the undersigned. Eng Vice-President Research and Development 400 Godin Avenue Vanier.The EMC Directive EXFO ELECTRO-OPTICAL ENGINEERING INC. Requirement. 2004 xii FTB-200 . Quebec Canada G1M 2K2 (418) 683-0211 Industrial Scientific Equipment FTB-3930 MultiTest Module Equipment Type/Environment: Trade Name/Model No.EMC Requirements Limits and methods of measurement of radio disturbance characteristics of information technology equipment I. E.Certification Information DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Name: Manufacturer’s Address: 73/23/EEC .: Standard(s) to which Conformity is Declared: EN 60825-1: 1994/ A2: 2001 EN 61326: 1997/ A2: 2001 EN 55022: 1998/ A1: 2000 Safety of Laser Products-Part 1: Equipment Classification. the undersigned.The Low Voltage Directive 89/336/EEC . Manufacturer Signature: Full Name: Position: Address: Date: Stephen Bull. Canada July 20. Control and Laboratory Use . hereby declare that the equipment specified above conforms to the above Directive and Standards. and User’s guide Electrical Equipment for Measurement. 400 Godin Avenue Vanier. Quebec. 1 Introducing the FTB-200 Main Features The FTB-200 Compact Modular Platform has the following characteristics: 2-slot platform Multitasking Touchscreen (LCD and touchscreen optimized for outdoor use available in option) USB ports (host and client) Ethernet port CompactFlash card reader Autonomy (8 hours) Windows CE Ruggedness (GR-196-CORE) Possibility to connect a probe Optional built-in power meter and VFL The Compact Modular Platform supports the following modules: FTB-7000B/7000D/70000C OTDR FTB-3930 MultiTest Compact Modular Platform 1 . Introducing the FTB-200 Main Features Front panel Touchscreen LEDs Keypad Keypad Knob with ENTER button Brightness button On/Off button Left panel Right panel Fiber Inspection Probe port Card reader RJ-45 port USB client port Headset/ microphone port DC connector USB host port 2 FTB-200 . Introducing the FTB-200 Main Features Top panel VFL Built-in power meter Battery compartment Module slots Bottom panel Retaining screws Compact Modular Platform 3 . Unit is not powered by AC and battery is low. No modules emit signal. Unit is off. Note: The function of certain LEDs vary with the applications. Unit is off or unit is not powered by AC and battery level is above the “low-battery threshold”. Laser status LED At least one module emits an optical signal. Battery is charging. Battery error. LED Status Meaning Green Off Green Green. Unit powered or not by AC and battery fully charged. Pass (result does not exceed the defined threshold) Fail Flashing Off Green Red 4 FTB-200 . flashing Red Off Unit is on. flashing Yellow.Introducing the FTB-200 LED Panel Description LED Panel Description The LED panel located on the front of the unit provides you with the status of your unit. Result status (from application currently displayed). Lock/Start acquisition/F1 button (depends on application). Starts the associated application (see Configuring the Shortcut Buttons on page 34). Note: The function of certain buttons vary with the applications. Adjust screen brightness. Button Meaning First shortcut button. Start fiber probe application. The table below shows an overview of their purpose. For more information. Compact Modular Platform 5 . Switch from one task to another. Turn on and off your unit: Suspend: hold down button a few seconds until the unit beeps once. Starts the associated application or the built-in power meter application (see Configuring the Shortcut Buttons on page 34). Shutdown: hold down button until the unit beeps twice. Second shortcut button.Introducing the FTB-200 Keypad Description Keypad Description The keypad of your unit gives you access to various functions at all times. see Turning On or Off the Unit on page 25. Mute/Move markers/F2 button (depends on application). etc. RJ-45 port to connect your unit to an Ethernet network. 6 FTB-200 . Save/F4 button (depends on application). The card reader is located on the left panel of the unit.).Introducing the FTB-200 Card Reader and Ports Button Meaning Report/Next λ or trace/F3 button (depends on application). Card Reader and Ports Your unit is equipped with a card reader (for Bluetooth wireless and CompactFlash cards) and communication ports (for probe. There are four ports. to connect USB memory USB client (secondary) port (type B connector) to connect a USB cable for data transfer between your unit and a computer. all located on the right panel of the unit: 8-pin connector to connect the fiber inspection probe. USB host port (type A connector) drives. mouse. etc. keyboard. keyboards. hub. mouse devices. rechargeable Lithium-Ion battery (automatically takes over if you disconnect the AC adapter/charger) IMPORTANT The unit will function only if the battery is present and the battery door is in place (even if you use it with the AC adapter/charger).Introducing the FTB-200 Power Sources Power Sources The unit operates with the following power sources: AC adapter/charger (connected to a standard power outlet–indoor use only). The clock battery has an autonomy of approximately 15 minutes after which the unit will restart exactly as if you performed a shutdown (button held down until the unit beeps twice). Possible to switch from AC adapter/charger to battery power or vice versa without affecting operation Automatic recharge when AC adapter/charger is connected Rechargeable battery (for clock and RAM. used when Lithium-Ion battery and AC power are both unavailable). Compact Modular Platform 7 . may result in component damage.Introducing the FTB-200 Conventions Conventions Before using the product described in this manual. if not avoided. CAUTION Indicates a potentially hazardous situation which. could result in death or serious injury. Do not proceed unless you understand and meet the required conditions. Do not proceed unless you understand and meet the required conditions. CAUTION Indicates a potentially hazardous situation which. you should understand the following conventions: WARNING Indicates a potentially hazardous situation which. if not avoided. Do not proceed unless you understand and meet the required conditions. IMPORTANT Refers to information about this product you should not overlook. 8 FTB-200 . may result in minor or moderate injury. if not avoided. adjustments and procedures for operation and maintenance other than those specified herein may result in hazardous radiation exposure. WARNING Use of controls.2 Safety Information WARNING Do not install or terminate fibers while a light source is active. Laser Safety information The laser class of your unit depends on the modules that you use. Compact Modular Platform 9 . Never look directly into a live fiber and ensure that your eyes are protected at all times. 10. Do not view directly with optical instruments.10. Indicated under VFL port OTDR Models without VFL Your instrument is a Class 1M laser product in compliance with standards IEC 60825-1 Amendment 2: 2001 and 21 CFR 1040. Affixed to side of module 10 FTB-200 . Affixed to back of unit (under the stand). The following label(s) indicate that the product contains a Class 3R source: If VFL option is available IEC 60825-1:1993+A2:2001 21 CFR 1040. Invisible laser radiation may be encountered at the output port.10 LASER RADIATION AVOID DIRECT EYE EXPOSURE CLASS 3R LASER PRODUCT λ: 650 ±10 nm Pout maximum < 5mW (into free space) QST498C On On MultiTest OTDRmodules modules Affixed to side of OTDR and MultiTest modules.Safety Information Laser Safety information Units with VFL (OTDR. It is potentially harmful in direct intrabeam viewing. MultiTest Module and Built-in VFL) Your instrument is a Class 3R laser product in compliance with standards IEC 60825-1 Amendment 2: 2001 and 21 CFR 1040. The product is safe under reasonably foreseeable conditions of operation but it may be hazardous if you use optics within a diverging or collimated beam. Safety Information Laser Safety information MultiTest Modules Models without VFL Your instrument is a Class 1 laser or LED product in compliance with standards IEC 60825-1 Amendment 2: 2001 and 21 CFR 1040. They are not affixed to your product. Laser radiation may be encountered at the output port. Compact Modular Platform 11 . The following labels indicate that a product contains a Class 1 source: CLASS 1 LASER PRODUCT CLASS 1 LED PRODUCT Note: Labels shown for information purposes only.10. ) is damaged. To avoid electrical shock. A person qualified in first aid must also be present. Only authorized personnel should carry out adjustments. Operation of any electrical instrument around flammable gases or fumes constitutes a major safety hazard. panels. 12 FTB-200 .Safety Information Electrical Safety Information Electrical Safety Information If you need to ensure that the unit is completely powered off. do not operate the unit if any part of the outer surface (covers. etc. disconnect the power cable and remove the batteries. WARNING Use the external power supply indoors only. Position the unit so that the air can circulate freely around it. Do not replace any components while power cable and battery are connected. maintenance or repair of opened units under voltage. Capacitors inside the unit may be charged even if the unit has been disconnected from its electrical supply. d. With FTB-8XXX modules. the maximum storage temperature is 50 °C (122 °F).Safety Information Electrical Safety Information Equipment Ratings Temperature Operation Storage Relative humidityc unit AC adapter Maximum operation altitude Pollution degree Installation category Power supply ratingd ≤ 95 % non-condensing 0 % to 80 % non-condensing 5000 m (16405 ft) 2 II 100 V to 240 V (50 Hz/60 Hz) maximum input current 1. decreasing linearly to 50 % at 40 °C (104 °F).8 °F) range. The following label is affixed to the unit: Located on unit’s right panel Compact Modular Platform 13 . b. c. With FTB-8XXX modules. Measured in 0 °C to 31 °C (32 °F to 87.6 A 0 °C to 50 °Ca (32 °F to 122 °F) -40 °C to 60 °Cb (-40 °F to 140 °F) a. Not exceeding ± 10 % of the nominal voltage. the maximum operation temperature is 40 °C (104 °F). . refer to the Release Notes on the installation CD. For the installation or upgrade. you will need: the installation CD (includes ActiveSync installation kit) a computer equipped with a USB port. you may have to upgrade some applications when new versions become available or to reinstall them.3 Getting Started with Your Unit Installing or Upgrading the Applications All the necessary applications have been preinstalled and configured at the factory. However. Windows must be installed on the computer an FTB-200 unit a USB cable Note: For more information on the installation. Compact Modular Platform 15 . From the computer. 7. If necessary. For more information. Turn on the computer and insert the installation CD in the CD-ROM drive. 3. Once the installation is complete. will be installed on your computer. exit the OTDR CE and MultiTest CE applications. When installation is complete. 4. Follow the on-screen instructions. turn on your unit.Getting Started with Your Unit Installing or Upgrading the Applications To install or upgrade the applications: 1. refer to the online help of the Handheld Instrument Software Manager (from the Help menu). 2. on the Windows taskbar. All the necessary components. simply disconnect the USB cable. Use Add Programs to install new versions. 5. including ActiveSync. ActiveSync automatically opens and establishes the connection. Follow the on-screen instructions. then click Programs > EXFO > Handheld Instrument Software Manager. click the Start button. 16 FTB-200 . 6. Connect the provided USB cable to the computer (type A end) and your unit (type B end). at least one of your modules is emitting an optical signal.Getting Started with Your Unit Inserting and Removing Test Modules Inserting and Removing Test Modules CAUTION Never insert or remove a module while the Compact Modular Platform is turned on. To insert a module into the Compact Modular Platform: 1. WARNING When the laser safety LED ( ) is flashing. Please check all modules. 2. Position the Compact Modular Platform so that its front panel is facing you. Compact Modular Platform 17 . Turn off your unit. as it might not be the one you are currently using. This will result in immediate and irreparable damage to both the module and unit. Place the Compact Modular Platform so that its bottom panel is facing you. Push the module all the way to the bottom of the slot. 6. CAUTION Inserting a module upside down could result in permanent damage to the module. Insert the protruding edges of the module into the grooves of the unit’s module slot. 5. Take the module and place it vertically so that the retaining screw hole is at the left of the connector pins. as the connector pins might be bent. 18 FTB-200 .Getting Started with Your Unit Inserting and Removing Test Modules 3. until the retaining screw makes contact with the unit casing. 4. use a coin to turn the retaining screw clockwise until it is tightened. This will secure the module into its “seated” position. Compact Modular Platform 19 . While applying slight pressure to the module. the startup sequence will automatically detect the module. Turn retaining screws clockwise Bottom panel When you turn on the unit.Getting Started with Your Unit Inserting and Removing Test Modules 7. The module will be slowly released from the slot. Turn retaining screws clockwise Bottom panel 4. Place the Compact Modular Platform so that the top panel is facing you.Getting Started with Your Unit Inserting and Removing Test Modules To remove a module from the Compact Modular Platform: 1. Using a coin. Position the Compact Modular Platform so that the bottom panel is facing you. 3. 2. Turn off your unit. turn the retaining screw counterclockwise until it stops. 20 FTB-200 . Compact Modular Platform 21 . Cover empty slots with the supplied protective covers.Getting Started with Your Unit Inserting and Removing Test Modules 5. CAUTION Pulling out a module by a connector could seriously damage both the module and connector. Always pull out a module by its casing. Hold the module by its sides or by the handle (NOT by the connector) and pull it out. 6. the touchscreen keyboard will still be displayed when working in ToolBox CE. You can also add a mouse. Note: It is not necessary to turn off the unit before connecting the keyboard or the mouse. you can also use a hardware keyboard. an on-screen keyboard will be displayed. Note: Even if a keyboard is connected. located on the right side of the unit. To install a USB keyboard or mouse on your unit: Connect the keyboard or the mouse to the type A USB port. Your mouse or keyboard is automatically recognized and immediately usable.Getting Started with Your Unit Installing a USB Keyboard or Mouse Installing a USB Keyboard or Mouse When you are required to enter alphanumeric data. However. The software will automatically detect its presence. 22 FTB-200 . Wait a few seconds until items appear in the Untrusted list. If you want to print on a network printer or if you want to print other type of reports. you must configure the printer first. ToolBox R/T Pro or Result Viewer is installed. The card should fit perfectly into the card reader. 3. Ensure that the holes for the connector pins are towards the back of the card reader and that you see the label with a small arrow on top.Getting Started with Your Unit Configuring the Printer Configuring the Printer To print reports. 4. go to the Main Menu. From the Untrusted list. Compact Modular Platform 23 . From Bluetooth Manager. Insert the Bluetooth wireless card (provided with the printer) into the unit’s card reader. The unit supports the Printek MT2B printer and communicates with it via Bluetooth. you must transfer the desired files on a computeron which ToolBox 6 (or later). CAUTION Applying too much pressure on the card will cause irreparable damage to the card. 2. then select Setup > Bluetooth Device Properties. press Scan Device to launch printer detection. select the first Printek M2 item and press the -> button. Note: Some applications may not offer print functions. On your unit. To configure the printer: 1. 24 FTB-200 . answer No. 6. the application will not be able to use the printer. select it. The printer is now ready to use. Press Active. Once the item is on the Trusted list. CAUTION Always use the card reader’s eject button to remove the card from your unit. Repeat steps 4 and 6 with the second Printek M2 item. Close Bluetooth Manager.Getting Started with Your Unit Configuring the Printer 5. When Bluetooth Manager prompts you to authenticate the device. IMPORTANT If you answer Yes. 8. 7. A red checkmark appears at the side of the icon to confirm the activation. then Control Panel and File Manager. Compact Modular Platform 25 . Shutdown: completely cuts power to the test modules and platform.Getting Started with Your Unit Turning On or Off the Unit Turning On or Off the Unit There are two ways to turn off the unit: Suspend: the next time you turn your unit on. To enter suspend mode: Hold down the On/Off button a few seconds until the unit beeps once. you will quickly return to your work environment (running applications will still be running). the unit will perform a complete restart routine the next time you use it. To turn on the unit: Press the On/Off button. After a shutdown. You should perform a shutdown if you do not intend to use your unit for a week or more. the unit will start in ToolBox CE or in the application you defined as the startup application. To perform a shutdown: Hold down the On/Off button a few seconds until the unit beeps twice. To start the Power Meter or Probe application: From Main Menu. Selected module Modules inserted in the platform Applications specific to selected module 2. To start a module application: 1.Getting Started with Your Unit Starting Module Applications Starting Module Applications Your modules may be fully configured and controlled from their dedicated applications in ToolBox CE. then press Start. select the row corresponding to the module you wish to use. Under Applications. select an application. press Power Meter or Probe. It will turn blue to indicate that it is highlighted. From ToolBox CE. 26 FTB-200 . Compact Modular Platform 27 ..4 Setting Up Your Unit Recalibrating the Touchscreen If you notice the touchscreen does not behave in the way it used to (e. Go to the Calibration tab and follow the instructions. press Setup. it is now difficult to select items) it probably needs a recalibration.g. From the Main Menu. 2. then select Stylus. To recalibrate the touchscreen: 1. Press OK to return to the Control Panel window. you may adjust the microphone and speaker. then select Microphone and Speaker. 2. Values are kept in memory when you turn the unit off. press Setup. To adjust microphone and/or speaker: 1. 28 FTB-200 .Setting Up Your Unit Adjusting Microphone and Speaker Adjusting Microphone and Speaker To fit your work environment. From the Main Menu. Use the slider to adjust the sound of your microphone and/or speaker. 3. If you select the lowest brightness setting. Compact Modular Platform 29 . then select Brightness. key repeatedly to switch between brightness levels. Move the slider until the screen appearance is to your liking. the backlight will be completely deactivated. you may adjust the LCD brightness. 3.Setting Up Your Unit Adjusting Brightness Adjusting Brightness To fit your work environment. Values are kept in memory when you turn the unit off. Press OK to return to the Control Panel window. From the Main Menu. press Setup. Press the button to reactivate it. 2. To adjust the display brightness: Press the OR 1. Note: These settings do not apply to the Fiber Inspection Probe display. If other languages become available in the future. To select a new interface language: 1. you will be prompted to restart your unit. press Setup. you could access them by replacing the unit software (see Installing or Upgrading the Applications on page 15). Once you have modified the User interface language. Note: Modifying the language of operation will affect the Windows CE language setting and vice versa. Modify the settings. then select Language Settings. 2. Values are kept in memory when you turn the unit off. Press OK to return to the Control Panel window. From the Main Menu. 30 FTB-200 .Setting Up Your Unit Selecting the Language of Operation Selecting the Language of Operation You may display the user interface in one of the available languages (default is English). Press OK to return to the Control Panel window. Modify the settings. From the Main Menu. press Setup. select the desired language. To set date and time formats: 1. the unit also saves the corresponding date and time. Note: A dedicated clock battery keeps the date and time accurate. see Replacing Battery on page 258. Note: Modifying locale. 4. For details.Setting Up Your Unit Setting Date and Time Formats Setting Date and Time Formats The current date and time are displayed at the bottom of the Main Menu. then select Language Settings. When saving results. This will determine the date formats available for the short and long dates. From Your locale. date and time settings will affect some of the Windows CE settings and vice versa. 2. Compact Modular Platform 31 . 3. the required module is not present in the unit or is not inserted in the same slot) the startup application setting is automatically reset to “None”. For more information. in the FTB-200. The selected application will start automatically the next time you turn on your unit after a shutdown (not suspend mode). If the specified application cannot be started (e.Setting Up Your Unit Selecting the Startup Application Selecting the Startup Application The first time you start your unit. you can configure your unit to automatically start in any of the available applications. Note: The startup application you select will also be used after a power failure. You will have to select the application again when the module is inserted into the unit.g. see Turning On or Off the Unit on page 25.. ToolBox CE is displayed. 32 FTB-200 . However. then OK to return to the Control Panel window. then select Application Startup.Setting Up Your Unit Selecting the Startup Application To select a startup application: 1. 3. From the Main Menu. select the application you want to start automatically when you turn on your unit. Press Apply. Note: The Power Meter application is only available if you purchased this option with your unit. Under Device power on. 2. Compact Modular Platform 33 . press Setup. To configure the shortcut buttons: 1. refer to Microsoft Windows CE documentation. Press Apply to confirm your changes. then select Application Startup. then OK to return to the Control Panel window. 34 FTB-200 . From the Main Menu. press Setup. Under Shortcut buttons. 3. You can determine which application each of these shortcut buttons will start. There are two shortcut buttons: one to start an application related to the module in slot 0 another to start either the built-in power meter application (if your unit is equipped with this option) or an application related to the module in slot 1.Setting Up Your Unit Configuring the Shortcut Buttons Configuring the Shortcut Buttons You can start a particular application directly by pressing one of the shortcut buttons. 2. Setting Other Parameters You can also configure other parameters via the Control Panel window. associate the application to each button. The power meter can detect modulated signals (1 kHz. Note: Some buttons are not displayed when you first access the Power Meter application. The FTB-200 can also include a visual fault locator (VFL) to inspect or identify fibers. Accessing the Built-In Power Meter From the Main Menu. 2 kHz and 270 Hz).5 Using the Built-In Power Meter and VFL The FTB-200 Compact Modular Platform can be equipped with an optical power meter to measure absolute power (in dBm or W) or insertion loss (in dB). press Power Meter. but will be displayed after you press Add for the first time or after you open a file. Compact Modular Platform 35 . Using the Built-In Power Meter and VFL Accessing the Built-In Power Meter Below is a description of the Power Meter buttons and functions. Reference value (when in reference mode) Selected wavelength Detected power Switches between available power meter wavelengths Switches between dBm and W as measurement units Accesses reference mode Stores a reading to the Results window 36 FTB-200 . Tighten the protective cap on the power meter port. Compact Modular Platform 37 . Your unit has been designed not to require offset nulling under normal operation. press Nulling. then press OK.Using the Built-In Power Meter and VFL Nulling Electrical Offsets Nulling Electrical Offsets Temperature and humidity variations affect the performance of electronic circuits and optical detectors. The nulling process takes approximately 5 seconds. To perform an offset nulling: 1. From the Power Meter tab. 2. Always use an EUI or protective screw cap. Nulling the electrical offsets eliminate these effects. but you should perform it whenever environmental conditions change significantly or when measuring very low power values. Do not use a soft rubber cover. IMPORTANT Light must not reach the detector when nulling offsets. Thresholds list (dB.Using the Built-In Power Meter and VFL Setting Thresholds and Correction Factors Setting Thresholds and Correction Factors You can define thresholds to specify acceptable power or loss values for each wavelength. When a measurement is below a threshold. in the Results list. Thresholds are usually supplied by system manufacturers and depend on the system deployed. W) for each wavelength Correction factor for each wavelength Wavelengths list When selected. the beside the measurement. 2. From the Power Meter tab. From the Threshold and Correction Factor list. correction factors and reference values. you will erase all your thresholds. dBm. To set power or loss thresholds: 1. symbol appears in red IMPORTANT If you revert to factory settings. select the wavelength for which you want to set a threshold and a correction factor. press Setup. green LED: pass/ red LED: fail To revert to default values 38 FTB-200 . Note: Threshold values with dB. dBm or dBm/dB units will be converted to a negative value if you entered a positive value. Select the Show Pass/Fail Status with LED check box to activate the pass/fail LED on your unit. select the desired order of magnitude. Compact Modular Platform 39 . then press Exit Setup to confirm the new thresholds. Press Edit and modify thresholds for the selected wavelength.Using the Built-In Power Meter and VFL Setting Thresholds and Correction Factors 3. 4. Press OK to close the dialog box. 5. For the watt (W) threshold. since it substracts a reference value from the measured power. From the Power Meter tab. Wavelengths list 4. use the up/down arrows to select a wavelength. Using the proper adapter and test jumpers. your unit displays the loss created by the fiber under test only. Check your fibers and clean them properly. 3. connect a light source to your power meter. It will appear on the right-hand corner of the data display. You can set a different reference value for each wavelength. Activate the source at the same wavelength. To set reference values to use in Reference mode: 1. 2. A reference value remains in memory until a new one is stored at the same wavelength.Using the Built-In Power Meter and VFL Setting Reference Values on Your Power Meter Setting Reference Values on Your Power Meter In Reference mode. 40 FTB-200 . Press Reference to save the current power value as the new reference. If you have used a single reference patchcord.Using the Built-In Power Meter and VFL Measuring Power or Loss Measuring Power or Loss Measuring absolute power or link loss is done the same way. Compact Modular Platform 41 . 4. Check your fibers and clean them properly. then deactivate the light source. You can take power or loss measurements and save them for further analysis. To perform power or loss measurements: 1. perform an offset nulling (see Nulling Electrical Offsets on page 37). OR If you have used two reference patchcords. If necessary. 3. disconnect it from the power meter port only. then attach a second reference patchcord to the power meter. For loss measurements. disconnect both of them at the bulkhead. 2. except for the referencing step. reference your power meter to a light source (see Setting Reference Values on Your Power Meter on page 40). 9. connect a fiber under test to reference patchcord attached to the light source and power meter. use the up/down arrows to select a wavelength. Repeat the procedure for other wavelengths. 8. From the Power Meter tab. Activate the source at the same wavelength. 42 FTB-200 . Add the displayed values to the Results list by pressing Add. Using bulkhead adapters or the system patch panels. 6. You can also access the Save File dialog box in the Storage window. Wavelengths list 7. Once the analysis is complete. the original file will be overwritten and only the new file will be available. press Quick Save.Using the Built-In Power Meter and VFL Measuring Power or Loss 5. IMPORTANT If you specify a name that already exists. press Quick Save. 3. Note: If you press Add while using another measurement unit.Using the Built-In Power Meter and VFL Measuring Power or Loss To view and edit power measurements: 1. Compact Modular Platform 43 . Wavelength at which power was measured Power measurement results (in dB) Reference power (in dBm) if a reference was used Fiber number Average power measured To change the fiber name To delete a row in the table Symbol indicating a measurement below the user-defined threshold. All your measurements are displayed in the order they were performed. press Results. you will have to save previous values first. see Setting Thresholds and Correction Factors on page 38. Press Exit Results to return to the Power Meter tab. For more information. From the Power Meter tab. 2. Once the analysis is complete. Press Rename to rename the fiber or press Delete to remove the selected value from the list. 4.You can also access the Save File dialog box in the Storage window. from the Power Meter tab. From the Power Meter tab. then use the Optical Test Report Viewer. Then. change the location from which the file should be reloaded. Confirm with OK. To view the reloaded file. Then. but you cannot reload files from another unit. 3. If necessary. The power measurements are displayed on the results list. then Open Files. you will be asked to save it.Using the Built-In Power Meter and VFL Reloading Power Meter Results Reloading Power Meter Results By reloading results on your unit. To reload Power Meter results: 1. you will be able to reload a new file afterwards. transfer data to a computer. To do so. If you have already performed power measurements but not saved your work. 2. press Results. select the file to reload. you can change the file location. press Storage. press Exit Storage. From the given list of files. 4. 44 FTB-200 . Compact Modular Platform 45 . you can clear the display and start over. press Storage. then Clear Display. Select Yes to save the file. see Reloading Power Meter Results on page 44. the application will prompt you to save the current data. Press Exit Storage. For more information on saving results.Using the Built-In Power Meter and VFL Clearing Power Measurements from the Display Clearing Power Measurements from the Display If a measurement does not meet your requirements. To clear power measurements: 1. 2. Note: Clearing measurements from the display does not delete them from the disk (if they were saved previously). If you have already performed power measurements (but not saved them). From the Power Meter tab. Using the Built-In Power Meter and VFL Creating and Printing a Results Report Creating and Printing a Results Report A report is available to keep notes on the measures. the type of job performed and general comments. once you have provided the required data. in the power meter results file. This information will be saved. To speed up information entry. you may keep the contents as a template that will be used for all new results. the location of the tested fiber. with your measurements. You can print two types of report: Type of report Summarized Detailed Cable information Job information Result table Average table Comments X X X X X X X X 46 FTB-200 . Using the Built-In Power Meter and VFL Creating and Printing a Results Report To create a power meter result report: 1. To clear all the information from the Report window: Press Clear All. press Report. Enter the relevant information. 2. 3. From the Power Meter tab. Press Exit Report to return to the Power Meter tab. Compact Modular Platform 47 . To erase all information You can save the information as a template by pressing Save as Template. then Exit Report. For more information. 4. press Print. Connect a printer to your Compact Modular Platform. Press Print. see Configuring the Printer on page 23. 3. 2.Using the Built-In Power Meter and VFL Creating and Printing a Results Report To print a power measurement report: 1. You will automatically return to the Power Meter tab. From Power Meter tab. 48 FTB-200 . Select the report format. Protect any unused port with a cap. It can also help the person at the other end of the link to identify the fiber under test. the default) or blinking (1 Hz). Compact Modular Platform 49 . the VFL port emits visible laser radiation.Using the Built-In Power Meter and VFL Identifying Fiber Faults Visually with the VFL Identifying Fiber Faults Visually with the VFL The visual fault locator (VFL) helps you identify bends. the VFL emits a red signal which becomes visible at the location of a fault on the fiber. This signal can be continuous (CW. From its dedicated port. WARNING When the VFL is active. splices and other causes of signal loss. faulty connectors. which could be particularly useful when working with cables containing many fibers. Avoid exposure and do not stare directly into the beam. 4. If light is coming out of the rubber jacket or on the side of the ferrule. Press ON/OFF to activate the VFL. 2. press Power Meter. From the Main Menu. 7. Clean the connectors properly. 5. Connect the fiber under test to the VFL port. 3.Using the Built-In Power Meter and VFL Identifying Fiber Faults Visually with the VFL To activate the VFL and inspect a fiber: 1. then select the VFL tab. Use up/down arrows to switch between blinking (1 Hz) and continuous (CW) signals 6. the fiber is defective. 50 FTB-200 . Without looking directly into the beam. examine the fiber. Press ON/OFF to deactivate the VFL. For more information. Activate the probe display using one of the following: From the Main Menu. refer to the user guide that came with your probe. You cannot connect the probe to the USB port. The following common features of video fiber inspection probes are supported by the FTB-200 Compact Modular Platform: Magnification control: supports 200x. Focus control: fine-tunes the display quality. using an adapter if necessary. 2. Connect the probe to the 8-pin port on the right side of the unit. Press the Probe button on the unit keypad. To inspect a fiber end: 1. Inspecting a Fiber End Once that you started the probe application. Compact Modular Platform 51 . press Probe. 400x or other zoom factors. it is possible to inspect fibers through the FIP.6 Inspecting Fibers with a Probe The fiber inspection probe (FIP) is used to find dirty or damaged connectors by displaying an enlarged view of the connector surface. you will have to restart the application for the probe to be detected. IMPORTANT If you started the application before connecting the probe to your unit. Image capture: freezes the image on the unit display by pressing a button. Press Live Video. Connect the fiber you want to inspect to the probe. 52 FTB-200 . Adjust brightness and contrast by using the sliding arrows. 4. To adjust brightness To adjust contrast 5. 6. Adjust the focus by using the focus control knob on your probe.Inspecting Fibers with a Probe Inspecting a Fiber End 3. In Live Video mode. you can capture an image and save it on your unit as a JPEG or BMP file. Note: If you delete a file. Press File. starting at 000). Compact Modular Platform 53 . When you save a capture. brightness and contrast to adjust the image to your liking. Press Capture.Inspecting Fibers with a Probe Capturing an Image Capturing an Image While you are inspecting a fiber. use focus. To capture an image: 1. the application suggests a file name of the form “ProbeNNN” (where NNN is the first unused number in the folder. 2. 4. then Save As and select a file name and location for your capture. You can transfer image files to a computer and add them to your reports. Return to Live Video mode by pressing Main Menu. 3. its name becomes available for the next file to save. 2. 4. Repeat steps 1 to 3 to view other captures.Inspecting Fibers with a Probe Capturing an Image To view a capture: 1. Press File > Open. Open the folder in which your captures are saved. 54 FTB-200 . Return to Live Video mode by pressing Main Menu. Double click on the capture you want to view. Default folder Selected capture Capture format 3. attenuation.7 Introducing the OTDR The OTDR characterizes a fiber-optic span. connector and total losses. SM / MM OTDR OTDR MM OTDR port (multimode) Visual fault locator (VFL) port (optional) Handle OTDR port (singlemode) SM OTDR port (singlemode or multimode) FTB-7200D Singlemode and multimode models Other models Compact Modular Platform 55 . breaks. The optical time domain reflectometer (OTDR) provides an inside view of the fiber. total return loss. usually optical fiber sections joined by splices and connectors. and splice. and can calculate fiber length. Introducing the OTDR Main Features Main Features The OTDR: can be used with the FTB-400 Universal Test System (refer to FTB-400 Universal Test System user guide) and the Unit. offer impressive dynamic range with short dead zones perform quick acquisitions with low noise levels to enable accurate low-loss splice location acquire OTDR traces made of up to 128 000 points that provide a sampling resolution as fine as 4 cm include a light source and can include an optional visual fault locator 56 FTB-200 . This allows you to save time when testing a large number of fibers. Compact Modular Platform 57 . Reference trace documentation is also automatically copied to new acquisitions. This utility uses OTDR acquisitions from both ends of a fiber span (singlemode traces only) to average loss results for each event. You can also access more features such as customized printout batch printing conversion of traces to many formats such as Telcordia or ASCII Bidirectional Averaging Utility You can improve the accuracy of your loss measurements with the bidirectional averaging utility (available with ToolBox 6). and displays event tables and acquired traces. Advanced: Offers all the tools needed to perform integral OTDR tests and measurements and gives you control over all test parameters. sets acquisition parameters. acquires traces.Introducing the OTDR Trace Acquisition Modes Trace Acquisition Modes The OTDR application provides the following trace acquisition modes: Auto: Automatically calculates fiber length. Template: Tests fibers and compares the results to a reference trace that was previously acquired and analyzed. Data Post-Processing You can install the ToolBox 6 software on a computer to view and analyze traces without having to use an and an OTDR. Allows tests on both 50 μm (C type) and 62. 58 FTB-200 . useful to locate closely spaced events.5 μm (D type) multimode fibers. 26 dB (850 nm)/25 dB (1300 nm)/35 dB (1310 nm)/34 dB (1550 nm) dynamic range and 1 m event dead zone. 4. High-resolution feature to obtain more data points per acquisition. OTDR Description Singlemode FTB-200: FTB-7200D-B 1310 nm and 1550 nm. particularly useful to locate closely spaced events. Data points will be closer to each other.Introducing the OTDR Available OTDR Models Available OTDR Models A wide variety of multimode and singlemode OTDR models is offered at several wavelengths to cover all fiber applications from long-haul or WDM networks to metropolitan networks. 35 dB dynamic range and 1 m event dead zone. resulting in a greater distance resolution for the trace.5 m of attenuation dead zone for both singlemode and multimode. Singlemode and multimode FTB-200: FTB-7200D-12CD-23B Four wavelengths: two multimode (850 nm and 1300 nm) and two singlemode (1310 nm and 1550 nm) in a single module. access and FTTx test applications. and inside plant testing. Acquires up to 52 000 data points while sampling a single trace. 1550 nm and 1625 nm. Singlemode FTB-200: FTB-74234C-B Singlemode FTB-200: FTB-7500B-B 45 dB dynamic range (on NZDSF with a 20 μs pulse) with 3 meter event dead zone. Suitable for measuring B-. Suitable for long-range applications and recommended when measuring time is a key factor. Acquires up to 52 000 data points while sampling a single trace. Acquires up to 128 000 points. and L-band fiber attenuation when dealing with mixed networks (1310 nm and DWDM transmission). Compact Modular Platform 59 . C-. 38 dB dynamic range. two or three wavelengths selected from the following: 1310 nm. 1550 nm and 1625 nm module. 1490 nm. High-power 1310 nm. Singlemode FTB-200: FTB-7400B-B 40 dB dynamic range with 3 meter event dead zone.Introducing the OTDR Available OTDR Models OTDR Description Singlemode FTB-200: FTB-7300D-B One. High-launch power level minimizes noise effects on signal. 40 dB dynamic range with 3 meter event dead zone. Optimized for metro network installation and troubleshooting. Acquires up to 52 000 data points while sampling a single trace. The signal strength is measured for specific intervals of time and is used to characterize events. The OTDR calculates distances as follows: c t .998 x 108 m/s) t = time delay from the launch of the pulse to the reception of the pulse n = index of refraction of the fiber under test (as specified by the manufacturer) 60 FTB-200 . splices. and faults. bends.Introducing the OTDR OTDR Basic Principles OTDR Basic Principles An OTDR sends short pulses of light into a fiber. An OTDR then detects and analyzes the backscattered signals.× -n 2 where c = speed of light in a vacuum (2.Distance = -. Light scattering occurs in the fiber due to discontinuities such as connectors. Introducing the OTDR OTDR Basic Principles An OTDR uses the effects of Rayleigh scattering and Fresnel reflection to measure the fiber’s condition, but the Fresnel reflection is tens of thousands of times greater in power level than the backscatter. Rayleigh scattering occurs when a pulse travels down the fiber and small variations in the material, such as variations and discontinuities in the index of refraction, cause light to be scattered in all directions. However, the phenomenon of small amounts of light being reflected directly back toward the transmitter is called backscattering. Fresnel reflections occur when the light traveling down the fiber encounters abrupt changes in material density that may occur at connections or breaks where an air gap exists. A very large quantity of light is reflected, as compared with the Rayleigh scattering. The strength of the reflection depends on the degree of change in the index of refraction. Light pulses Laser diode Optical coupler OTDR port Light pulses Fiber Reflections come back to the OTDR Returned signal Avalanche photodetector (APD) Pulse generator Set of instructions Analog-to-digital converter (A/D) Analyzed signal Microprocessor Display When the full trace is displayed, each point represents an average of many sampling points. You will have to zoom to see each point. Compact Modular Platform 61 8 Setting Up Your Optical Time Domain Reflectometer Installing the EXFO Universal Interface (EUI) The EUI fixed baseplate is available for connectors with angled (APC) or non-angled (UPC) polishing. A green border around the baseplate indicates that it is for APC-type connectors. Green border indicates APC option Bare metal (or blue border) indicates UPC option To install an EUI connector adapter onto the EUI baseplate: 1. Hold the EUI connector adapter so the dust cap opens downwards. 3 2 3. Insert the connector adapter into the baseplate. 4 2. Close the dust cap in order to hold the connector adapter more firmly. 4. While pushing firmly, turn the connector adapter clockwise on the baseplate to lock it in place. Compact Modular Platform 63 Setting Up Your Optical Time Domain Reflectometer Cleaning and Connecting Optical Fibers Cleaning and Connecting Optical Fibers IMPORTANT To ensure maximum power and to avoid erroneous readings: Always clean fiber ends as explained below before inserting them into the port. EXFO is not responsible for damage or errors caused by bad fiber cleaning or handling. Ensure that your patchcord has appropriate connectors. Joining mismatched connectors will damage the ferrules. To connect the fiber-optic cable to the port: 1. Clean the fiber ends as follows: 1a. Gently wipe the fiber end with a lint-free swab dipped in isopropyl alcohol. 1b. Use compressed air to dry completely. 1c. Visually inspect the fiber end to ensure its cleanliness. 2. Carefully align the connector and port to prevent the fiber end from touching the outside of the port or rubbing against other surfaces. If your connector features a key, ensure that it is fully fitted into the port’s corresponding notch. 3. Push the connector in so that the fiber-optic cable is firmly in place, thus ensuring adequate contact. If your connector features a screwsleeve, tighten the connector enough to firmly maintain the fiber in place. Do not overtighten, as this will damage the fiber and the port. Note: If your fiber-optic cable is not properly aligned and/or connected, you will notice heavy loss and reflection. 64 FTB-200 Setting Up Your Optical Time Domain Reflectometer Naming Trace Files Automatically Naming Trace Files Automatically Each time you save a trace, the application suggests a default name. This name is made of a static part (alphanumeric) and a variable part (numeric) that will be incremented or decremented, according to your selection, as follows: If you choose incrementation... If you choose decrementation... Variable part increases until it reaches the highest possible value with the selected number of digits (e.g., 99 for 2 digits), then restarts at 0. Variable part decreases until it reaches 0, then restarts at the highest possible value with the selected number of digits (e.g., 99 for 2 digits). By setting the default name and number of the first trace to be stored, all subsequent traces will be stored with the same name and incremental number structure. This function is particularly useful when working in Template mode or when testing ribbon fibers. Compact Modular Platform 65 Setting Up Your Optical Time Domain Reflectometer Naming Trace Files Automatically To configure the automatic file naming: 1. From the button bar, press Storage. 2. From the Storage dialog box, select the File Autonaming button. 3. From the Autonaming Setup dialog box, set the parameters. If you want the variable part to increase each time a file is saved, select Increment. If you want it to decrease, select Decrement. 4. Press OK to confirm your new settings. 66 FTB-200 If you ever need to modify other parameters. you can set the following parameters directly: Test wavelengths (all selected by default) Fiber type (singlemode or multimode) for models supporting both fiber types Autorange acquisition time IOR (group index). RBS coefficient and Helix factor For all other parameters. the application uses those defined in Advanced mode. When you start testing another link. In Auto mode. except that analysis is always performed after acquisitions. acquires traces. and displays event tables and acquired traces. you can reset these parameters. sets acquisition parameters. The trace display is continually updated. Note: You can interrupt the acquisition at any time. The application will display the information acquired to that point. the application starts acquiring the trace. will be tested with the same settings. within the same cable. Fiber characteristics are evaluated only once per session. Once this evaluation is complete. no data will be displayed. Other fibers you connect to. the application will automatically evaluate the best settings according to the fiber link currently connected to the unit (in less than 5 seconds). Compact Modular Platform 67 . If you interrupt it. In Auto mode. go to Advanced mode (see Testing Fibers in Advanced Mode on page 73 and Setting Up Your Optical Time Domain Reflectometer on page 63).9 Testing Fibers in Auto Mode Acquiring Traces Auto mode automatically evaluates fiber length. Testing Fibers in Auto Mode Acquiring Traces Once the acquisition is complete or interrupted. the application prompts you to save them before starting a new acquisition. You can save the trace after analysis. 68 FTB-200 . After analysis. Trace display Event pane The application will also display status messages if you have selected to display pass/fail messages (see Setting Pass/Fail Thresholds on page 86). the analysis starts for acquisitions of 5 seconds or more. If former results have not been saved yet. the trace is displayed and events appear in the events table. 5. Set the autorange acquisition time (see Setting the Autorange Acquisition Time on page 77). depending on the wavelength you intend to use.Testing Fibers in Auto Mode Acquiring Traces To acquire traces in Auto mode: 1. If your OTDR supports singlemode and multimode wavelengths.5 μm). Clean the connectors properly. ensure that you connect the fiber to the appropriate port (SM or MM). activate the fault finder features (see Activating or Deactivating the Fault Finder Features on page 71). 3. Compact Modular Platform 69 . select 62. select 50 μm and for D fiber. specify the desired fiber type (for C fiber. If your OTDR supports singlemode and multimode wavelengths. CAUTION Never connect a live fiber to the OTDR port. 4. If desired. Go to the OTDR tab. Any incoming signal greater than –30 dBm will affect the OTDR acquisition and could damage the OTDR permanently. Note: You do not need activate the fault finder features if you have activated them in a previous test session. 2. Connect a fiber to the OTDR port. 70 FTB-200 .Testing Fibers in Auto Mode Acquiring Traces 6. press Reset. Press OK to confirm. IMPORTANT If you specify the name of an existing trace. save the trace by pressing Quick Save in the button bar or from the keypad. 9. 8. Select the boxes corresponding to the desired test wavelength(s). Note: You cannot save the results if you deactivated the storage and print features (see Activating or Deactivating the Fault Finder Features on page 71). Press Start or from the keypad. If you want to clear the settings the OTDR has determined to start with a new set of OTDR settings. 9a. the original file will be overwritten and only the new file will be available. 9b. change the folder to which the file will be saved by pressing the Location button. 7. If necessary. If necessary. specify a file name. Once the analysis is complete. You must select at least one wavelength. Go to the General tab. from the button bar. OR If you want to revert the application to its default behavior.Testing Fibers in Auto Mode Activating or Deactivating the Fault Finder Features Activating or Deactivating the Fault Finder Features The application offers you a special testing feature to rapidly locate fiber ends. select the box(es) corresponding to the desired behavior. 2. To activate or deactivate the fault finder features: 1. clear the boxes. select OTDR Setup. then under Fault Finder. Press Exit OTDR Setup. If you are testing more than one wavelength. normally. all information will be displayed in a single message. the save and print options are available and no message is displayed to indicate the fiber length. The test procedure is similar to the usual test performed in Auto mode. The application can also display a message indicating the length of the fiber under test and highlight the corresponding value in the events table. you only have to activate the fault finder features once. 3. This could be useful if you want to perform a quick test without having to save and/or print the results. Compact Modular Platform 71 . By default. Note: Since the application keeps your settings in memory. In Auto mode. . Compact Modular Platform 73 . Note: Most parameters can only be set if you select Advanced mode first. The default value is 15 seconds. all available test wavelengths are selected. the application will automatically evaluate the best settings according to the fiber link currently connected to the unit: The pulse width will be determined using a factory-defined signal-to-noise ratio (SNR) requirement specified where the End-of-Fiber (EoF) event has been detected. Once you have finished selecting your settings.10 Testing Fibers in Advanced Mode Advanced mode offers all the tools you need to perform complete OTDR tests and measurements manually and gives you control over all test parameters. in Advanced mode. The EoF event detection algorithm uses the end-of-fiber threshold defined in the Analysis tab of the application setup. In this mode. you can either set the acquisition parameters yourself or let the application determine the most appropriate values. The range will then be set automatically. Longer acquisitions give better OTDR results. This optimum value may differ from the values currently associated with the Distance dial of the main window. In the latter case. By default. you can simply return to the test mode you prefer. the application will “add” the required value and mark it with a * symbol. If you are not sure about which value to choose. see Setting the Autorange Acquisition Time on page 77). The application uses the acquisition time defined in the Acquisition tab of the OTDR setup (for more information. revert to the factory default value for this parameter. In this case. Once the acquisition is complete or interrupted. 74 FTB-200 . If former results have not been saved yet. After analysis. see Setting Pass/Fail Thresholds on page 86. the analysis starts for acquisitions of 5 seconds or more. The application will display the information acquired to that point. Trace display Event pane The application will also display pass/fail messages if you have selected this option. For more information. the trace is displayed and events appear in the events table. Note: You can interrupt the acquisition at any time. You can save the trace after analysis. the application prompts you to save them before starting a new acquisition. even while the acquisition is in progress. you can modify these values as needed.Testing Fibers in Advanced Mode Although the application sets the acquisition parameters. The OTDR simply restarts the averaging each time a modification is made. select 62. Compact Modular Platform 75 .Testing Fibers in Advanced Mode To acquire traces: 1. simply select the option (see Enabling the High-Resolution Feature on page 84). Connect a fiber to the OTDR port. 5. see Setting the IOR. select 50 μm and for D fiber. If you want the application to provide automatic acquisition values. Any incoming signal greater than –30 dBm will affect the OTDR acquisition and could damage the OTDR permanently. ensure that you connect the fiber to the appropriate port (SM or MM). Clean the connectors properly. RBS Coefficient and Helix Factor on page 78. If your OTDR supports singlemode and multimode wavelengths. 6. depending on the wavelength you intend to use. RBS coefficient or Helix factor. 4. If you want to test in high resolution. set the autorange acquisition time (see Setting the Autorange Acquisition Time on page 77). 3. Go to the OTDR tab. If your OTDR supports singlemode and multimode wavelengths. 2. CAUTION Never connect a live fiber to the OTDR port. specify the desired fiber type (for C fiber.5 μm). If you want to set your own IOR (group index). Once the analysis is complete. 10a. change the folder to which the file will be saved by pressing the Location button. 8. 10b. You must select at least one wavelength. 76 FTB-200 .Testing Fibers in Advanced Mode 7. 9. Press Start or from the keypad. Pulse Width and Acquisition Time on page 80. 10. save the trace by pressing Quick Save in the button bar or from the keypad.If necessary. Select the desired distance. Press OK to confirm. pulse and time values. IMPORTANT If you enter the name of an existing trace. the original file will be replaced with the new file. specify a file name. For more information. Select the boxes corresponding to the desired test wavelength(s). see Setting Distance Range.If necessary. When performing automatic acquisitions in Advanced mode (see Testing Fibers in Advanced Mode on page 73) or before activating Auto mode (see Testing Fibers in Auto Mode on page 67). not the autorange acquisition time. Note: In Template mode.Testing Fibers in Advanced Mode Setting the Autorange Acquisition Time Setting the Autorange Acquisition Time Note: This function is available both in Advanced OTDR and Automatic OTDR modes. 2. you can set an autorange acquisition time for the OTDR to average acquisitions over a set time period. The application uses this value to determine the best settings for the test. Go to the Autorange acquisition time box and press the up or down arrow to select your preference. Press Exit OTDR Setup to return to the OTDR application. Compact Modular Platform 77 . press OTDR Setup then go to the Acquisition tab. The default value is 30 seconds. From the button bar. To set the autorange acquisition time: 1. 3. the acquisition time of the reference trace is used for all trace acquisitions. if you are in Advanced mode. You can set the RBS coefficient for each available wavelength. The Helix factor describes the pitch of that spiral. The RBS coefficient is used in the calculation of event loss and reflectance. You should verify this information before each test. You should set the IOR (group index). and it can usually be obtained from the cable manufacturer. The Helix factor takes into consideration the difference between the length of the cable and the length of the fiber inside the cable. The index of refraction (IOR) value (also known as group index) is used to convert time-of-flight to distance. Fibers within a cable are spiraling around the cable core. Having the proper IOR is crucial for all OTDR measurements associated with distance (event position. tab to reanalyze a specific trace. The length of the OTDR distance axis is always equivalent to the physical length of the cable (not the fiber). The Rayleigh backscatter (RBS) coefficient represents the amount of backscatter in a particular fiber. section length. RBS coefficient and Helix factor before performing tests in order to apply them to all newly acquired traces. etc. You can set the IOR value for each available wavelength. The test application determines a default value for each wavelength. However. attenuation. The test application determines a default value for each wavelength.). you can also set them at a later time in the Trace Info. RBS Coefficient and Helix Factor Setting the IOR. 78 FTB-200 .Testing Fibers in Advanced Mode Setting the IOR. IOR is provided by the cable or fiber manufacturer. total length. RBS Coefficient and Helix Factor Note: This function is available both in Advanced OTDR and Automatic OTDR modes. press OTDR Setup. 5. RBS Coefficient and Helix Factor To set the IOR. From the button bar.Testing Fibers in Advanced Mode Setting the IOR. 4. Press Exit OTDR Setup. go to the Acquisition tab. for each available wavelength. Note: You cannot define a different Helix factor for each wavelength. Use the up or down arrow located on the side of the wavelength box to select the desired wavelength. When the application prompts you. 2. 3. Wavelength for which RBS and IOR will be defined Index of refraction Rayleigh backscatter coefficient IMPORTANT Change the default RBS coefficient only if you have values provided by the fiber manufacturer. From the OTDR Setup window. If you set this parameter incorrectly. OR Enter your own values in the appropriate boxes. Select the default settings by pressing Default. answer Yes only if you want to apply the new settings to all wavelengths. it does not vary with wavelengths. RBS and Helix factor parameters: 1. your reflectance measurements will be inaccurate. This value takes into account the difference between the length of the cable and the length of the fiber inside the cable. Compact Modular Platform 79 . Pulse Width and Acquisition Time The distance range. but less distance range. A shorter pulse width provides higher resolution. If you select Auto. The available distance ranges and pulse widths depend on your OTDR model. Changing the distance range alters the available settings of the pulse width and leaves only the settings available for the specified range. You can select either one of the predefined values or the Auto option. Note: Not all pulse widths are compatible with all distance ranges. 80 FTB-200 . If you select Auto. Pulse: corresponds to the pulse width for the test. but results in less resolution.Testing Fibers in Advanced Mode Setting Distance Range. If your OTDR model is FTB-7000D or later. the application will evaluate the fiber length and set the acquisition parameters accordingly. Pulse Width and Acquisition Time Setting Distance Range. Note: If you deactivate the Same Pulse Value for all Wavelengths option. you can customize the available distance range values (see Customizing the Acquisition Distance Range Values on page 103). pulse width and acquisition time are set with the controls in the Advanced main window. A longer pulse allows you to probe further along the fiber. the application will evaluate the fiber type and length and set the acquisition parameters accordingly. the Pulse dial is replaced by boxes (one per wavelength). You can select either one of the predefined values or the Auto option. Distance: corresponds to the distance range of the fiber span to be tested according to the selected measurement units (see Selecting the Measurement Unit on page 118). see Customizing the Acquisition Time Values on page 105. This averaging increases the signal-to-noise ratio (SNR) and the OTDR’s ability to detect small events. Auto: the application will use the autorange acquisition time that you have previously defined (see Setting the Autorange Acquisition Time on page 77). Compact Modular Platform 81 . In addition to the displayed values. the Time dial is replaced by boxes (one per wavelength). The time settings will also determine how the timer displayed in the toolbar counts time during testing. pulse width and acquisition time parameters for testing at all wavelengths on a multiwavelength OTDR. You can alternate between real mode and averaging time interval mode while an acquisition is in progress. In this mode. You can use the same distance range. For more information. Pulse Width and Acquisition Time Time: corresponds to the acquisition duration (period during which results will be averaged).Testing Fibers in Advanced Mode Setting Distance Range. It will also evaluate the fiber type and length and set the acquisition parameters accordingly. you can customize one or all of them. If the predefined values do not suit your needs. the following time modes are available: Real: used to immediately view changes in the fiber under test. Note: If you deactivate the Same Time Value for all Wavelengths option. longer acquisition times generate cleaner traces (this is especially true with long-distance traces) because as the acquisition time increases. more of the noise is averaged out. Generally. the SNR of the trace is lower and the trace is refreshed instead of averaged until you press Stop. Note: You can only use one wavelength at a time to monitor your fiber in real time mode. Selection marker Parameters setting dials If you want the application to provide automatic acquisition values. Note: If your OTDR supports singlemode and multimode wavelengths. The selection marker will go to that value immediately. Press the dial corresponding to the parameter you wish to set (the selection marker will move clockwise) or use the selection dial located on the front of the Unit. Pulse Width and Acquisition Time To set the parameters: From the OTDR tab.Testing Fibers in Advanced Mode Setting Distance Range. depending on the selected fiber type (same settings for 50 μm and 62. 82 FTB-200 . The other dials are automatically set accordingly. move at least one dial to the Auto position. settings would be applied to either singlemode or multimode wavelengths.5 μm). OR Press directly the value to select it. list boxes for each available test wavelength appear instead.Testing Fibers in Advanced Mode Setting Distance Range. Pulse Width and Acquisition Time To use the same pulse and acquisition time for all wavelengths: 1. When a particular option is selected. Select the Same pulse for all wavelengths box and/or the Same time for all wavelengths box. then go to the Acquisition tab. Compact Modular Platform 83 . From the button bar. the corresponding dial (Pulse or Time) appears on the OTDR tab. 2. press OTDR Setup. When it is not. This way. then the High-resolution acquisition box. you can select the high-resolution option to obtain more data points per acquisition. the data points will be closer to each other. the high-resolution feature will be activated either for the singlemode or multimode wavelengths. In Template mode. Note: You can use high resolution with any test mode (except when you monitor fiber in real time).Testing Fibers in Advanced Mode Enabling the High-Resolution Feature Enabling the High-Resolution Feature If your OTDR model is FTB-7000D or later. Note: If your OTDR supports singlemode and multimode wavelengths. 84 FTB-200 . To enable the high-resolution feature: Select the OTDR tab. you will have to acquire the reference trace using high resolution. depending on the selected fiber type. all subsequent acquisitions will use this option automatically. but you must be in Advanced mode to select it. This way. which will result in a greater distance resolution for the trace. press OTDR Setup. You can either choose to automatically analyze each trace immediately after the acquisition. the application always performs an analysis after the acquisition. From the button bar. 4. If you clear the box. You can also set a default fiber span. 3. Press Exit OTDR Setup to return to the main window. see Setting a Default Span Start and Span End on page 88. which will be applied during the analysis of all traces to display test results. 2. the trace will be saved without being analyzed. When the analysis process is disabled. For details. Note: By default. 85 Compact Modular Platform . To enable or disable the analysis after trace acquisition: 1. Note: In Auto mode. If you want the OTDR to automatically analyze an acquired trace. select the Automatically analyze data after acquisition box. traces are automatically analyzed as they are acquired.Testing Fibers in Advanced Mode Enabling or Disabling Analysis After Acquisition Enabling or Disabling Analysis After Acquisition The OTDR trace acquisition procedure will be completed by the analysis. the Event table of a newly acquired trace will be empty. or perform the analysis whenever it suits you best. Go to the Analysis tab. 0 0. minimum and maximum thresholds.000 0.0 0.Testing Fibers in Advanced Mode Setting Pass/Fail Thresholds Setting Pass/Fail Thresholds Your Optical Time Domain Reflectometer allows you to set Pass/Fail threshold parameters for your tests.000 0.000 86 FTB-200 . The following table provides the default. Test Default Minimum Maximum Splice and connector loss (dB) Reflectance (dB) Fiber section attenuation (dB/km) 0.015 –80. The loss. or to ensure that all events are detected—even the ones for which very small values are measured.000 5. Setting these thresholds allows you either to ignore events with known lower values. reflectance and attenuation thresholds that you set are applied to all events where such values can be measured.015 –45.0 5. will also indicate the status (green for pass. 5. The Pass/Fail test is performed on two occasions: when analyzing or reanalyzing a trace when you open a trace file The application displays asterisks to mark events for which the measured value is greater than the predefined thresholds in the events table. From the button bar. Enter the desired values in the appropriate fields. 4.Testing Fibers in Advanced Mode Setting Pass/Fail Thresholds Once the thresholds are set. 2. fail). Select the Mark faults in event table box. warning. select Display Pass/Fail Message. red for fail). To set pass/fail thresholds: 1. Press Exit OTDR Setup to return to the main window. then the Event Table tab. If you want the application to display messages when events fail the test. located on the front of the unit. You can also set the application to display pass/fail messages when the Pass/Fail test is performed. select OTDR Setup. The other boxes become available. Compact Modular Platform 87 . 3. the application will be able to perform Pass/Fail tests to determine the status of the various events (pass. The Pass/Fail threshold LED. does not necessarily reflect the actual number of events displayed.Testing Fibers in Advanced Mode Setting a Default Span Start and Span End Setting a Default Span Start and Span End By default. You can set the span start and span end on a particular event or at a certain distance value from the beginning or end of the trace. rather than at the exact distance you have set. you must reenter them. and do not appear in the trace display. respectively. You can change the default fiber span that will be applied during the initial trace analysis. 88 FTB-200 . Note: You can also change the fiber span of a single trace after the analysis and reanalyze the trace. the number of available events is set to 10 and. The span start becomes event 1 and its distance reference becomes 0. to the first event (the launch level event) and the last event (often a non-reflective or reflective end event) of a trace. Changes to the span start and span end will modify the contents of the events table. Events excluded from the fiber span are grayed out in the events table. By default. When you set a distance value for the span start or end. However. the application searches for a nearby event. If it finds one. The cumulative loss is calculated within the defined fiber span only. if you want to keep working with the original parameters. the span start and span end of a fiber are assigned. therefore. the span start or end is assigned to that event. press OTDR Setup. go to the Analysis tab. select the Set by distance option. If you want to set the span start and end with a distance value. From the Event number field. From the button bar. OR If you want to set the span start and end on a particular event. under Span start and Span end. Go to the Position box and enter the desired value. select the option indicating whether the span end position is from the fiber span start or from the end of the fiber. Compact Modular Platform 89 . use the up or down arrow to select the number of the event that you want to designate as span start or span end. 2. From the OTDR Setup window. using the distance unit displayed to the right of the field. 3. Under Span end. select the Set on event option.Testing Fibers in Advanced Mode Setting a Default Span Start and Span End To change the default span start and span end for traces: 1. under Span start and Span end. The span event parameters are applied to all newly acquired traces. . add information and comments on the current job. If the reference trace was createdwith the ToolBox software on an FTB-400 Universal Test System or a computer. the event-related comments inserted in the reference trace. The test application will flag possible problems and discrepancies between the reference trace and other traces. For a more accurate reference trace. Template mode allows you to test these fibers one after the other quickly and efficiently and ensures that no event remains undetected.). the application prompts you to save them before starting a new acquisition. Template mode can be used on an unlimited number of traces. If former results have not been saved yet. Compact Modular Platform 91 . You can save the trace after analysis. splices. Note: You cannot add comments to events or to a reference trace. you will find the same events at the same location (due to connectors. then save the trace. Each new acquisition will be compared to the reference trace and the software will mark and measure any missing event. you can update it with new events that may occur during the first acquisitions (up to fifteen). etc. as long as you have at least one reference trace. Thus. are automatically copied to subsequent traces. Theoretically. on all these fibers. Template Principle Cables contain numerous fibers. as well as the reference trace report. you can use Template mode to automate trace acquisition. The Template mode concept is to acquire a reference trace (template).11 Testing Fibers in Template Mode Template mode allows you to test fibers and compare them to a reference trace that was previously acquired and analyzed. Pulse width Must be: ⎛ Reference trace pulse⎞ ≤ Current trace pulse -------------------------------------------------⎝ ⎠ 4 OR Current trace pulse ≤ ( Reference trace pulse × 4 ) Pulse width This would also be valid: ⎛ Current trace pulse⎞ ≤ Reference trace pulse ----------------------------------------------⎝ ⎠ 4 OR Reference trace pulse ≤ ( Current trace pulse × 4 ) 92 FTB-200 . The OTDR that you intend to use must support at least one wavelength that was used to acquire the reference trace. The reference trace and subsequent traces (or recalled traces) must respect the following criteria: Item To be valid.. but pulse settings can be adjacent and still be accepted.. certain restrictions apply.Testing Fibers in Template Mode Restrictions of Template Mode Restrictions of Template Mode To speed up trace acquisition in Template mode. when applicable). The reference trace and subsequent traces must be acquired using identical wavelength(s). The parameters used to acquire the reference trace are automatically applied when acquiring subsequent traces (including the high-resolution option. Compare multimode traces with multimode traces. Fiber types Number of events Acquisition mode Compare singlemode traces with singlemode traces. applying the span length is optional.. Wavelengths Reference wavelengths and subsequent (or reloaded) traces wavelengths must be identical. Pulse Width and Acquisition Time on page 80). Reference trace must not be acquired in Real mode (see Setting Distance Range. therefore. Compact Modular Platform 93 . When you process traces on a computer. When you process traces using an OTDR. Traces must have at least two events (span start and span end) and a fiber section.. you use traces stored on disk.Testing Fibers in Template Mode Restrictions of Template Mode Item To be valid. you acquire the traces as you go along. If desired. see Naming Trace Files Automatically on page 65). For more information. you will have to select this option before acquiring the reference trace. Any incoming signal greater than –30 dBm will affect the OTDR acquisition and could damage the OTDR permanently. depending on the wavelength you intend to use. define the span start and end (see Analyzing the Fiber on a Specific Fiber Span on page 141). 2. 3. CAUTION Never connect a live fiber to the OTDR port.Testing Fibers in Template Mode Acquiring the Reference Trace Acquiring the Reference Trace You must acquire a reference trace before you start Template mode. 94 FTB-200 . Note: For easier management. 4. document the results (see Documenting Results on page 159). If necessary. Once the analysis is complete. see Testing Fibers in Auto Mode on page 67 or Testing Fibers in Advanced Mode on page 73. you can name the reference trace as the cable name and set the autonaming function to include both the cable name and fiber number (for more information. save the trace by pressing Quick Save in the button bar or from the keypad. ensure that you connect the fiber to the appropriate port (SM or MM). To acquire the reference trace: If your OTDR supports singlemode and multimode wavelengths. Acquire a trace in Auto or Advanced test mode. The acquisition parameters you define for this reference trace will be used to acquire subsequent traces. 1. If you want to test using high resolution. Compact Modular Platform 95 . If you want your reference trace to be more accurate. To acquire traces in Template mode: 1. If you do not select it immediately. If your OTDR supports singlemode and multimode wavelengths. 2. clean the connectors (see Cleaning and Connecting Optical Fibers on page 64) and connect a fiber to the OTDR port. CAUTION Never connect a live fiber to the OTDR port. select the trace you want to use as the reference trace. Any incoming signal greater than –30 dBm will affect the OTDR acquisition and could damage the OTDR permanently. you can update it with the new events that might be found. ensure that you connect the fiber to the appropriate port (SM or MM). depending on the wavelength you intend to use. When the application prompts you. you must first open your reference trace in the application. you will have to select it manually before starting your test (see Selecting a Reference Trace on page 101). The application will automatically switch to Template mode once the reference update is complete. that is.Testing Fibers in Template Mode Acquiring Traces in Template Mode Acquiring Traces in Template Mode To acquire traces in Template mode. after 15 acquisitions or after you stop the update manually. If necessary. Set test parameters. 3a. From the button bar. 96 FTB-200 . Select the Create Ref.Testing Fibers in Template Mode Acquiring Traces in Template Mode 3. 3c. Note: You can disable the mode by clearing the Create reference trace box between two acquisitions. press OTDR Setup./Template tab. 3b. If necessary. select Create reference trace to update your reference trace for the next acquisitions. if you decide to stop the process manually) to continue compiling events and updating the previous traces accordingly. This mode will use the first 15 traces (or less. if this event will be deleted or kept on the current trace.Testing Fibers in Template Mode Acquiring Traces in Template Mode IMPORTANT Once the first 15 acquisitions have been performed. whether they are on the reference trace or not. 3e. You can delete these events later. Confirm. the only way to reactivate it will be to close the application and start a new acquisition in Template mode. for each newly detected event. Set the Template mode option you want to use on the current trace acquisition: Consider only the events already indicated on the reference trace and ignore any other event occurring on the current trace. Press Exit OTDR Setup to return to main window. Keep all the events on the current trace. 3d. Compact Modular Platform 97 . or if you stop the reference update manually. Note: If you chose the Keep all events option for the acquisitions that will be performed after the update. The application will update all previous acquisitions with the new information. the application would update traces 1 through 5. specify if the event will be: added to the reference trace. 4b. Press Start or from the keypad. For each of the newly detected events.Testing Fibers in Template Mode Acquiring Traces in Template Mode 4. The application will prompt you when new events are found. If you selected Create reference trace at step 3c. you may find useful to add newly detected events to obtain a more accurate reference trace. 98 FTB-200 . Note: Previous traces will only be updated if you select the Add event to template trace option. update your reference trace as follows: 4a. For example. if an event occurred on the sixth acquisition. Events from all traces will automatically be analyzed and measured. deleted from the current trace kept on the current trace (but not copied to previous or future traces because it is not transferred to reference trace) Note: You can only add events to the reference trace during reference update. Once the reference update is complete (or if you did not select the reference update). For each of the newly detected events. the application automatically switches to Template mode. 5b. If you selected the Display delete/keep confirmation message for each newly detected event option. the application will prompt you when new events are found. the original file will be replaced with the new file will be available. change the folder to which the file will be saved by pressing the Location button. Press OK to confirm. IMPORTANT If you specify the name of an existing trace. If necessary. save the trace by pressing Quick Save in the button bar or from the keypad. specify a file name. Perform acquisitions in Template mode as follows: 5a. specify if the event will be: deleted from the current trace kept on the current trace Compact Modular Platform 99 .Testing Fibers in Template Mode Acquiring Traces in Template Mode 4c. 5. Repeat steps 4a to 4c as necessary to update your reference trace. New events will be managed according to the option you selected at step 3d. If necessary. 4d. Press Start or from the keypad. Once the analysis is complete. Repeat steps 5a to 5c as necessary. If necessary. Once the analysis is complete.Testing Fibers in Template Mode Acquiring Traces in Template Mode 5c. specify a file name. 5d. If necessary. save the trace by pressing Quick Save in the button bar or from the keypad. change the folder to which the file will be saved by pressing the Location button. 100 FTB-200 . IMPORTANT If you specify the name of an existing trace. the original file will be replaced with the new file will be available. Press OK to confirm. To select a reference trace: 1. From the Main Menu window. 2. press Storage. The application opens the selected trace file automatically. Compact Modular Platform 101 . This operation is closely related to opening a trace file.Testing Fibers in Template Mode Selecting a Reference Trace Selecting a Reference Trace In Template OTDR mode. If necessary. Note: The following procedure will only be useful if you did not select a reference trace file when the Open Reference Trace File dialog box appeared during the activation of Template OTDR mode. select the storage location from where you want to open the file. you can only select a file as a reference trace. 3. then Open Reference. Select the file to be used as a reference and press OK. . you can customize the values associated with the Distance dial. Compact Modular Platform 103 . If your OTDR model is FTB-7000D or later. Once the customization is complete. Pulse Width and Acquisition Time on page 80.12 Customizing Your Optical Time Domain Reflectometer You can customize the appearance and behavior of your OTDR application. you are ready to set the distance range value for your test. Customizing the Acquisition Distance Range Values Note: This function is available in Advanced mode only. see Setting Distance Range. Note: The Auto value cannot be modified. For more information. 104 FTB-200 . In the displayed dialog box. 5. then the Acquisition tab. If your OTDR supports singlemode and multimode wavelengths. 4. 2. specify the desired fiber type. From the button bar. enter the new value and confirm with OK. From the Distance list.Customizing Your Optical Time Domain Reflectometer Customizing the Acquisition Distance Range Values To customize the distance range values: 1. 3. select OTDR Setup. Note: You can revert to factory values by pressing the Default button. Press the Customize Acquisition Parameters button. select the value you want to modify (the value will become highlighted). then press the Edit button. Compact Modular Platform 105 . Note: The Auto and Real values cannot be modified. The SNR improves by a factor of two (or 3 dB) each time the acquisition time is increased by a factor of four. The acquisition time values represent the time during which the OTDR will average acquisitions.Customizing Your Optical Time Domain Reflectometer Customizing the Acquisition Time Values Customizing the Acquisition Time Values Note: This function is available in Advanced mode only. You can customize the values associated with the Time dial. You can customize the acquisition time to improve the signal-to-noise ratio (SNR) of the trace and enhance the detection of low-level events. then press the Edit button. enter the new value and confirm with OK. 106 FTB-200 . In the displayed dialog box. then the Acquisition tab. 3. select the value you want to modify (the value will become highlighted). From the Time list. From the button bar. select OTDR Setup. 2. Note: You can revert to factory values by pressing the Default button.Customizing Your Optical Time Domain Reflectometer Customizing the Acquisition Time Values To customize the acquisition time values: 1. For information on the various criteria that are applied when loading traces in Template mode. you cannot select a trace as main or reference trace. Note: You cannot open bidirectional trace files in the OTDR test application. Opening Trace Files In Advanced mode. see OTDR Trace File Compatibility on page 156. Compact Modular Platform 107 . you can open a trace file as the main trace or the reference trace. see Displaying or Hiding a Trace on page 121. For information on how to navigate between traces. The trace display and events table are explained in the following sections. each containing three traces. The application can open trace files saved in different formats. Consequently. see Restrictions of Template Mode on page 92. For detailed information on compatibility between EXFO’s file formats and software versions. You can also reanalyze existing traces. Use the Bidirectional Analysis utility provided with ToolBox 6 instead. You can open both the main and reference trace files at the same time. In Automatic mode.13 Analyzing Traces and Events Once the acquired trace is analyzed. You can open two triple-wavelength trace files simultaneously. A total of six traces are available: three for main traces and three for reference. it appears in the trace display and the events are displayed in the events table at the bottom of the screen. you can open a trace file for viewing only. For more information. change the location to retrieve the file that has been stored. the application prompts you to save the current trace (even if the trace is hidden). according to your needs. From the button bar. Press OK. specify which trace(s) should be displayed. You can select another file from the list and set the trace as the main or reference trace. If necessary. 5. 3. If necessary. Available in Advanced mode 2. 7. press the Select as Main Trace or Select as Reference Trace button to indicate whether the selected trace will be used as the main or the reference trace. You can now open another trace file. 6. Press Yes to store the trace. 108 FTB-200 . If you are in Advanced mode. press Storage. You return to the Storage dialog box. see Displaying or Hiding a Trace on page 121. then Open File. If you had already acquired (but not stored) a trace. Scroll through the list of files and select a trace file to open.Analyzing Traces and Events Opening Trace Files To open a trace file: 1. Press Close. 4. The events that are detailed in the events table are marked by numbers along the displayed trace. you can change trace display parameters (such as the grid and zoom window display). For more information. see Setting Trace Display Parameters on page 116. 4 Distance units Split bar Zoom buttons Events table Scroll buttons Event editing buttons Some items in the trace display are always visible.Analyzing Traces and Events Trace Display and Events Table Description Trace Display and Events Table Description The application shows the analysis results both on a graph and in a table. Compact Modular Platform 109 . Default injection level Event no. Once the trace is acquired. while others will appear only if you choose to display them or when you move from one pane or another. The blue rectangle on the Y axis (relative powers) indicates the proper injection level range for the defined test pulse. The colors are assigned dynamically depending on the order in which the traces have been opened into the OTDR application. The contents of the graph area changes according to the selected tab. depending on what is selected in the events table. it allows you to zoom in on an event selected in the events table. each trace is displayed in a different color.Analyzing Traces and Events Trace Display and Events Table Description You can view all of the traces. You can also drag markers from one location to another on the graph. in turn. in both the Trace Info pane and the trace display with the navigation buttons. The Zoom window will not appear in the trace display when the Events tab is selected. You can move markers directly by selecting an event in the events table or on the graph. These markers pinpoint an event or a fiber section. For more information. When more than one trace is opened in the OTDR test application. The magnifying glass button is displayed in the bottom right corner of the Events tab. Events tab: The application shows marker A or markers A and B on the graph. 110 FTB-200 . see Displaying or Hiding a Trace on page 121. it is a fault. splices.Analyzing Traces and Events Trace Display and Events Table Description Measure tab: The application shows two. Selecting marker A or B will move the a-A or B-b pair. You can drag them directly from the trace display. An event can be defined as the point at which change in the transmission properties of light can be measured. If you press and hold the row corresponding to a specific event for a few seconds. and b. Trace Info. A. You can also use from the keypad to select the desired marker and move it with the selection dial located on the front of the unitUnit. connectors or breaks. You can reposition all markers by using the controls in the Markers section. These markers can be repositioned along the trace to calculate loss. Compact Modular Platform 111 . If the event is not within the established thresholds. the application will display the name of this event. tab: The information about all the trace files (including the reference) can be displayed. The zoom window will appear in the trace display when the Measure tab is selected. three or four markers: a. B. attenuation. Events can consist of losses due to transmission. reflectance. The events table lists all the events detected on the fiber. and optical return loss (ORL). depending on which button you select from the Results section. : Cumulative loss from the trace span start to span end.: Attenuation (loss/distance) measured for each fiber section.Analyzing Traces and Events Trace Display and Events Table Description For each event listed in the events table. distance between the OTDR and the measured event or between the event and the beginning of the fiber span. the running total is provided at the end of each event and fiber span. excluding those that are hidden. that is. Loss: Loss in dB for each event (calculated by the application). see Description of Event Types on page 169. Cumul. Loc. refer to the loss measurement displayed in the Trace Info. tab. Att.: Reflectance measured at each reflective event along the fiber. For a more detailed description of symbols. For a more accurate link loss value. Number: Event number (a sequential number assigned by the OTDR test application) or. information is displayed: Type: Various symbols are used to describe different event types.: Location. in parentheses. Cumulative loss is calculated for the events displayed in the events table. 112 FTB-200 . the length of a fiber section (the distance between two events). Refl. The list scrolls automatically to the event you selected. When the selected event is a fiber section.Analyzing Traces and Events Locating Events in the Trace Display and Events Table Locating Events in the Trace Display and Events Table You can view information about all detected events on a trace by scrolling through the events table. Compact Modular Platform 113 . this fiber section is delimited by two markers (A and B). To quickly locate an event in the events table: Select the event on the trace. see Using Markers on page 143. For more information on markers. When selecting an event in the events table. marker A appears on the trace over the selected event. Note: Hiding the fiber sections will not delete these items. you can obtain the running total of connector and splice losses instead of having a loss value for the entire link. but not the icon. You can include or exclude items from the events table to better suit your needs. column.Analyzing Traces and Events Customizing the Events Table Customizing the Events Table Note: This function is available in Advanced OTDR mode only. the application will include the losses caused by the span start and span end events in the displayed values. 114 FTB-200 . by hiding the fiber sections. the Launch Level event is represented by the icon. Including span loss and span end: When applicable. You can hide the injection level value and symbol from the Att. the injection level value for that event is identified by the @ symbol. Fiber sections: You can display or hide fiber sections in the events table depending on the types of values you want to view. In the Att. column. Launch level: In the events table. For example. span-start and span-end events will be taken into account when determining the status (pass/fail) of splice and connector loss and reflectance. To customize the events table appearance: 1. Compact Modular Platform 115 .Analyzing Traces and Events Customizing the Events Table If you activated the pass/fail test (see Setting Pass/Fail Thresholds on page 86). 3. 2. Select the boxes corresponding to the item you want to display or include in the table. Press Exit OTDR Setup. From the OTDR Setup window. clear the boxes. select the Event Table tab. OR To hide them. or Template). Zoom window Grid 116 FTB-200 . the grid is displayed. By default. the file name in the trace display: By default. the file name is displayed (at the top of the trace display).Analyzing Traces and Events Setting Trace Display Parameters Setting Trace Display Parameters Once you have launched the desired trace acquisition mode (Automatic. Advanced. the zoom window (Advanced and Template modes only): The zoom window shows you which portion of the graph is being magnified. Note: The zoom window is only visible in the display when the Measure tab is selected. you can change several trace display options: the grid: You can display or hide the grid appearing on the graph’s background. From the button bar. Select the boxes corresponding to the item you want to display on the graph. 2. clear the boxes.Analyzing Traces and Events Setting Trace Display Parameters To set the trace display parameters: 1. press the OTDR Setup button. Compact Modular Platform 117 . then select the General tab. Changes will be applied once you exit the OTDR Setup window. OR To hide them. Measurement unit 118 FTB-200 . Pulse values are expressed in seconds and wavelength in meters (nanometers). except for certain values such as the pulse and the wavelength.Analyzing Traces and Events Selecting the Measurement Unit Selecting the Measurement Unit You can select the measurement unit that will be used throughout the application. Compact Modular Platform 119 .Analyzing Traces and Events Selecting the Measurement Unit The default distance unit is the kilometer. Unit used Note: If you select Kilometers (km) or Kilofeet (kft). m and ft may appear instead to display more precise measurements. 4.Analyzing Traces and Events Selecting the Measurement Unit To select the measurement unit for your display: 1. select OTDR Setup. 2. You return to the main window and the newly selected measurement unit appears everywhere units are used. From the button bar. 120 FTB-200 . In the Distance units section. 3. Press Exit OTDR Setup. From the OTDR Setup window. select the General tab. select the option corresponding to the desired distance unit. By default. To display or hide traces in turn: Press the Next Trace button to switch from one fiber to another or from one wavelength to another (for multiwavelength files). You can also specify which trace will be displayed (current trace). in turn. the application takes the last item from the list of trace files you have just opened.Analyzing Traces and Events Displaying or Hiding a Trace Displaying or Hiding a Trace There are two ways of displaying or hiding traces in the OTDR test application. Compact Modular Platform 121 . You can also use from the keypad. as well as multiwavelength traces. including main and reference traces. You can view. You can select the fibers and the wavelengths (for multiwavelength files) that will be available when using the navigation button. all the trace files you have opened. Note: In Template mode. you can show or hide traces independently. In multiwavelength trace files.Analyzing Traces and Events Displaying or Hiding a Trace To specify which traces to display or hide: 1. Select the box(es) corresponding to the traces to display. From the button bar. select the row corresponding to the trace you want to set as the current trace (the row will become highlighted) and press the Set as Active Trace button. OR Clear the box(es) to hide them. 122 FTB-200 . since only one trace can be selected at a time in multiwavelength trace files. The trace will turn black in the display to indicate that it was selected. 2. From the list of traces. the Set as Active Trace button is not available. Note: A hidden trace cannot be displayed with the navigation button. press Storage. For more information. Although the test application automatically opens the last trace files used. Note: Clearing traces from the display does not delete them from the disk.Also. To clear traces from the display: 1.Analyzing Traces and Events Clearing Traces from the Display Clearing Traces from the Display Note: This function is available in Advanced OTDR mode only. 3. see Testing Fibers in Advanced Mode on page 73. a warning message appears for each trace (even if the trace is hidden) asking you if you want to save it or not. You can now acquire a new trace. If you had already acquired or modified (but not stored) some traces. you can clear the screen and launch new acquisitions. From the Storage dialog box. Press Close to return to the main window. From the button bar. if a trace (main or reference) you acquired does not meet your requirements. press Storage. 2. Compact Modular Platform 123 . you can clear that trace and start over. Press Yes to save the trace. press Clear Main or Clear Reference. Analyzing Traces and Events Automatically Zooming in on the Fiber Span Automatically Zooming in on the Fiber Span Note: This function is available both in Advanced and Template modes. 2. You can set the trace display to show only the span start to the span end of the trace in full-trace view. press OTDR Setup. By default. select the General tab. Under Zoom options. not when you have zoomed in on a trace. this option is not selected. select Zoom in automatically on defined fiber span to automatically zoom on the fiber span in the trace display when a trace is opened or selected. From the button bar. From the OTDR Setup window. or after trace analysis. Note: Zoom in automatically on defined fiber span is active only when in full-trace view. 3. To automatically zoom in on the fiber span: 1. 124 FTB-200 . OR Clear the box to leave the zoom level as is. event 2 at 1310 nm and event 5 at 1550 nm). You can select a different event for each wavelength (e. When the scale changes. When you manually zoom in or out on a trace (from the Measure tab). the application keeps the zoom on this event until you select another event or change zoom or marker positions (via the Measure tab). the trace display is always centered in the area that you defined with the zoom box.. Compact Modular Platform 125 . Both the zoom factor and marker positions will be saved along with the trace (same settings for all wavelengths). The selected events will be saved along with the trace. You can also quickly zoom in on or out of the selected event.Analyzing Traces and Events Using Zoom Controls Using Zoom Controls Use the zoom controls to change the scale of the trace display. When you zoom in or out on the selected event.g. the application will apply the new zoom factor and marker positions to the other traces (wavelengths) of a same file. the zoom factor and marker positions correspond to those of the reference trace. Note: In Template mode. Drag the zoom box handles to delimit the desired zoom area. Drag the zoom box to the desired location. 3. To revert to the complete graph view (Advanced and Template modes): Press the button. To zoom out of a trace (Advanced and Template modes): Simply press the button as many times as needed. select the desired event. Press the button to zoom in. 2. 126 FTB-200 . but not outside of the trace display boundaries. Use the zoom box to define the zooming area. 2. Press the button again to zoom out. Go to the Events tab. From the events table. Note: You can move the zoom box outside of the area shown in the trace display. the application will automatically zoom out instead. Note: You can zoom in on the horizontal and vertical scale independently. 3.The coordinates are displayed in the lower portion of the trace display.Analyzing Traces and Events Using Zoom Controls To zoom in on the trace (Advanced and Template modes): 1. Note: If you define the zoom area to the maximum permitted value and try to zoom in. Press OK to zoom in or Cancel to exit the zoom function. Press the button. To automatically zoom in on the selected event: 1. Rayleigh backscatter (RBS) coefficient and Helix factor for the displayed trace. However.Analyzing Traces and Events Viewing and Modifying Current Trace Settings Viewing and Modifying Current Trace Settings You can view the trace parameters and modify them at your convenience. to a particular wavelength). tab only shows one at a time. the Trace Info. if you want to modify the parameters that will be used for future acquisitions. press Next Trace in the toolbar. Note: Parameter modification is only possible in Advanced mode. You can modify the index of refraction (IOR) also known as group index. These modifications alter the displayed traces. Note: Even if more than one trace is available. tab. Modifications you make are only applied to the current trace (that is. These settings will also be used when you reanalyze the trace. Compact Modular Platform 127 . To display the traces in turn. not to all traces. The active trace appears in black in the trace display. RBS Coefficient and Helix Factor on page 78 To view trace settings: Go to the Trace Info. see Setting the IOR. Span length: Measured length of the total fiber span between span start and span end. Average loss: Average loss of the total fiber span. 128 FTB-200 . Total loss: Total measured loss of the fiber between span start and span end. Pulse: Pulse width used to perform the acquisition. Time: Duration (either in minutes or seconds) of the acquisition. splice loss: Maximum loss of all non-reflective events between span start and span end.Analyzing Traces and Events Viewing and Modifying Current Trace Settings These parameters are displayed: Wavelength: Test wavelength and type of fiber used: 9 μm (singlemode) or 50 μm/62.5 μm (multimode). indicated as a function of distance. Total ORL: ORL calculated between the span start and the span end. Max. Average Splice Loss: Average of all non-reflective events between span start and span end. Helix factor: Helix for the displayed trace. End-of-fiber det. the trace distance measurements will be adjusted. For more information. If you modify this parameter. see Enabling the High-Resolution Feature on page 84.Analyzing Traces and Events Viewing and Modifying Current Trace Settings High resolution: High-resolution option was selected to perform the acquisition. Backscatter: Rayleigh backscatter coefficient setting of the displayed trace. also known as group index. Splice detection: Current setting for detecting small non-reflective events during trace analysis. If you modify this parameter. Refl.You can enter an IOR value directly or let the application calculate it with the distance between span start and span end you provide. If you modify this parameter. the distance measurements for the trace will be adjusted.: Current setting for detecting important event loss that could compromise signal transmission during trace analysis. Compact Modular Platform 129 . detection: Current setting for detecting small reflective events during trace analysis. IOR: Refraction index of the displayed trace. the reflectance and ORL measurements for the trace will be adjusted. tab. From the main window. RBS coefficient and Helix factor parameters: 1. Press the Fiber Settings button.Analyzing Traces and Events Viewing and Modifying Current Trace Settings To modify the IOR. OR If you want to revert a particular item to its default value. press the Default button appearing next to this item. select the Trace Info. 130 FTB-200 . Enter the desired values for the current trace in the appropriate boxes. 2. Note: Except for the fiber type. Unless you are absolutely sure of the different parameter values. The application will adjust the fiber type of all multimode wavelengths (traces). You return to the main window. revert to default values to avoid fiber setting mismatches. However. then enter the distance value. not to all traces. you can enter it in the corresponding box. if you prefer to let the application calculate the IOR value as function of the distance between span start and span end. to a particular wavelength). You should do the same for other multimode wavelengths. modifications you make will only be applied to the current trace (that is. press Set IOR by Distance.Analyzing Traces and Events Viewing and Modifying Current Trace Settings If you already know the IOR value. You can change the fiber type of a multimode trace. Press OK to apply the changes. Compact Modular Platform 131 . IMPORTANT Inserted events are removed when you reanalyze a trace. if you know that there is a splice at a given location. you can insert an event in the events table manually. This will add a number on the trace at the location of the insertion. To insert an event: 1. press Add New Event. but it will not modify the trace. for example. From the Events tab. You can add this event to the events table manually. 132 FTB-200 . but the analysis does not detect it because it is hidden in the noise or because the splice loss is lower than the minimum detection threshold (see Setting Pass/Fail Thresholds on page 86). This could be useful.Analyzing Traces and Events Inserting Events Inserting Events At any time. Once you have determined the location. Four markers are available to measure the inserted event.Analyzing Traces and Events Inserting Events 2. but only marker A identifies where the event will be. 4. use the up/down arrows next to the box to select the desired event type. under Event. Use the marker arrows to move marker A on the trace display. Select the location where you want to insert an event. Press OK to insert the event or Cancel to return to the events table without making any changes. 3. Compact Modular Platform 133 . see Analyzing or Reanalyzing a Trace on page 139. For more information. Almost any event can be deleted from the events table. not the span end assigned to another event or distance from the span end in the Analysis tab. 134 FTB-200 . except: end of analysis fiber section launch level end of fiber span start span end Note: The “End-of-fiber” event indicates the span end that was set for the first analysis of the trace. as you would for a new trace.Analyzing Traces and Events Deleting Events Deleting Events Note: This function is available in Advanced mode only. IMPORTANT The only way to “recover” deleted items is to reanalyze the trace. When the application prompts you. Select Delete. or No to keep the event.Analyzing Traces and Events Deleting Events To delete an event: 1. Compact Modular Platform 135 . Locate the event you want to delete (see Locating Events in the Trace Display and Events Table on page 113). press Yes to confirm the deletion. 2. 136 FTB-200 . Reflectance threshold: To hide false reflective events generated by noise. IMPORTANT The end-of-fiber (EoF) threshold that you define will be used in Automatic mode and in Advanced mode if you let the application evaluate the acquisition settings. End-of-fiber threshold: To stop the analysis as soon as an important event loss occurs. The application will then use this EoF event to determine the acquisition settings.. e. To optimize event detection.Analyzing Traces and Events Setting the Analysis Detection Thresholds Setting the Analysis Detection Thresholds Note: This function is available in Advanced mode only.g. If you set this threshold. transform non-harmful reflective events into loss events. you can set the following analysis detection thresholds: Splice loss threshold: To display or hide small non-reflective events. an event that could compromise signal transmission toward the end of a network. or detect reflective events that could be harmful to network and other fiber-optic equipment. an EoF event will be inserted at the first event for which the loss crosses the threshold. Three traces are shown. Threshold at 0. Event location Threshold at 0.15 dB and the first and second splice losses are lower than 0.1 dB Only the first splice is displayed. as the threshold is set to 0. corresponding to three threshold level settings.1 dB.15 dB The first two splices are not displayed.15 dB. as the threshold is set to 0. Compact Modular Platform 137 .05 dB.Analyzing Traces and Events Setting the Analysis Detection Thresholds The following examples show how different splice-loss threshold levels can affect the number of displayed events. two events are displayed at distances corresponding to the location of the first and second splices.05 dB With the threshold set to 0. Threshold at 0. especially small non-reflective events such as those caused by two splices.1 dB and the second splice loss is lower than 0. For traces acquired. The analysis detection thresholds you have just set are applied to all newly acquired traces. 138 FTB-200 . From the OTDR Setup window. Note: Analysis thresholds are only saved in the trace during analysis. press OTDR Setup. 4. as well as to trace reanalysis. 3. OR Select the default settings by pressing Default. 2. but not yet analyzed.Analyzing Traces and Events Setting the Analysis Detection Thresholds To set the analysis detection thresholds: 1. From the button bar. you can change the analysis detection thresholds in the OTDR test application before performing the analysis. Under Analysis parameters. set the parameters. Press Exit OTDR Setup. select the Analysis tab. Enter the desired values in the appropriate boxes. the Analyze Data Automatically after Acquisition option was not selected. see Analyzing the Fiber on a Specific Fiber Span on page 141. if enabled (for more information. Compact Modular Platform 139 .Analyzing Traces and Events Analyzing or Reanalyzing a Trace Analyzing or Reanalyzing a Trace Note: This function is available in Advanced mode only.. Analyzing or reanalyzing a trace will: produce an events table for a trace.. If you prefer to focus your analysis on a specific fiber span. the Analyze After Acquisition option was not selected (e. if there was none (e. perform a Pass/Fail test. reanalyze a trace acquired with a previous version of the software. see Setting Pass/Fail Thresholds on page 86).g.g. see Enabling or Disabling Analysis After Acquisition on page 85). recreate the original events table if it was modified. You can analyze a displayed trace at any time. 140 FTB-200 . From the main window. 2. On the first analysis. Keep current span delimiter positions applies the current fiber span upon trace reanalysis. Reset span delimiters positions applies the fiber span defined in the OTDR Setup upon trace reanalysis. From the Reanalyze Trace dialog box. Press the Analyze button. Press OK to confirm. this dialog box is not displayed and the default span start and end are applied (See Setting a Default Span Start and Span End on page 88). select an option for setting the span start and end markers on the trace. 3.Analyzing Traces and Events Analyzing or Reanalyzing a Trace To analyze or reanalyze a trace: 1. go to the Events tab. except if your location corresponds to an already existing event on the trace. Changes to the span start and span end will modify the contents of the events table. and do not appear in the trace display. Note: Each of these options may lead to the creation of a new event. Note: You can set a default span start and end. The cumulative loss is calculated within the defined fiber span only. go to the Events tab.Analyzing Traces and Events Analyzing the Fiber on a Specific Fiber Span Analyzing the Fiber on a Specific Fiber Span Note: This function is available in Advanced mode only. which will be applied during the first analysis or reanalysis performed upon trace acquisition. To set a fiber span: 1. you can define events (new or existing) as a span start and/or span end. Events excluded from the fiber span are grayed out in the events table. 3. Use the selection dial to move marker A. Compact Modular Platform 141 . The span start becomes event 1 and its distance reference becomes 0. Press Set as Span Start or Set as Span End to set the span start or span end marker on the appropriate event in the trace display. 2. Define the span event location by moving marker A along the trace using one of the following options: Drag marker A to the desired span event location. From the main window. If you want to focus your fiber analysis on a specific fiber span. you may want to interchange main and reference traces. press Storage. When you swap traces. 142 FTB-200 . To swap traces: 1. even if only one trace is in the application’s memory. Note: You can change a main trace into a reference trace. 2. Since the events table and the trace information are based on the main trace. select Swap Main/Reference. From the button bar.Analyzing Traces and Events Swapping Traces Swapping Traces Note: This function is available in Advanced mode only. and vice versa. the application will provide a new set of events corresponding to the new main trace. From the Storage dialog box. Markers are available when you press Measure from the main window. and b markers. Distance between span start and A Distance between span start and B Distance between A and B Left and right arrows Power at A Power at B Power difference between A and B Compact Modular Platform 143 . you can select the Trace or All options. Once the appropriate marker is selected. In full-trace view. If you zoom in on a trace and select the Trace option. use the right and left arrow buttons to move the marker along the trace. fiber section attenuation. and optical return loss. In addition to the a. Using Markers You can use markers to view the position and relative power of an event. pressing the right or left arrow moves the trace. reflectance. You can also move it with the selection dial located on the front of the Unit. B. the Trace option has no effect on marker movement.14 Analyzing the Results Manually Once a trace has been acquired or opened. A. To move a marker: 1. Press the markers button until it displays the desired marker. 2. you can use markers and zoom in on or out of any event or trace segment to measure splice loss. You can also use from the keypad. If a marker is moved close to another. 144 FTB-200 . This ensures a minimum distance is maintained between markers. A marker may disappear from the trace after you zoom in (see Using Zoom Controls on page 125). both will move together.Analyzing the Results Manually Using Markers Note: You can also select the marker directly on the trace display and drag it to the desired position. You can recall it by selecting a missing marker with the Markers button or by using one of the arrows to bring the selected marker back into the displayed area. You can retrieve the position of an event as well as the distance between events manually. To get the distance to an event and the associated relative power level: 1.Analyzing the Results Manually Getting Event Distances and Relative Powers Getting Event Distances and Relative Powers The OTDR test application automatically calculates the position of an event and displays this distance in the events table. respectively. Move marker A to the beginning of the event. For more information about markers. Compact Modular Platform 145 . select the Measure tab. You can also display various relative power readings. 2. From the main window. see Using Markers on page 143. Distances and relative powers correspond to the X axis and Y axis. Analyzing the Results Manually Getting Event Loss (Four-Point and Least-Square Approximation) Getting Event Loss (Four-Point and Least-Square Approximation) Event loss (expressed in dB) is calculated by measuring the signal level reduction in Rayleigh backscatter (RBS) caused by this event. Event loss can result from both reflective and non-reflective events. Two loss calculations are provided simultaneously: the four-point event loss and the A-B LSA loss. Both calculations use the least-square approximation (LSA) method to determine the event loss. However, the four-point event loss is the preferred method and the one that corresponds to the loss displayed in the events table. Four-point event loss: the LSA method is used to fit a straight line to the backscatter data within the two regions defined by markers a, A and b, B, that is over the regions to the left and to the right of the event bordered by markers A and B, respectively. a Four-point event loss b The two fitted lines are then extrapolated toward the center of the event and the loss event is directly read from the drop in power between the two lines. 146 FTB-200 Analyzing the Results Manually Getting Event Loss (Four-Point and Least-Square Approximation) A-B LSA loss: the loss of the event bordered by the markers A and B is obtained by fitting a straight line to the backscatter data between these two markers. A-B LSA loss a b The event is then obtained by the reduction in power (dB) over the distance between the two markers, as calculated from the slope of the fitted line. Although this method works fairly well for splice loss, it is clearly not appropriate for reflective events (definitely not a “straight-line” event). A-B LSA Loss is mainly used to rapidly compute loss over a given length of a fiber section. Note: A-B LSA event loss measurements should be used on fiber sections only. Measuring events will not yield meaningful results. Compact Modular Platform 147 Analyzing the Results Manually Getting Event Loss (Four-Point and Least-Square Approximation) To get event loss: 1. From the main window, select the Measure tab. 2. In the Results section, press Loss. Markers a, A, B and b appear on the graph. 3. Zoom in and position marker A at the end of the linear area preceding the event to be measured. For more information, see Using Zoom Controls on page 125 and Using Markers on page 143. 4. Position submarker a at the beginning of the linear area preceding the event to be measured. 148 FTB-200 Analyzing the Results Manually Getting Event Loss (Four-Point and Least-Square Approximation) 5. Position marker B at the beginning of the linear area following the event to be measured. 6. Position submarker b at the end of the linear area following the event to be measured. Four-point event loss from the areas delimited by markers a, A, B and b Least-square approximation Compact Modular Platform 149 Analyzing the Results Manually Getting Attenuation (Two-Point and Least-Square Approximation) Getting Attenuation (Two-Point and Least-Square Approximation) A two-point attenuation measurement gives the reduction in Rayleigh backscatter level as a function of distance (expressed in dB/km) between two selected points. Only those two points are used to perform the calculation and there is no averaging. The least-square approximation (LSA) method measures the attenuation (loss over distance) between two points by fitting a straight line in the backscatter data between markers A and B. The LSA attenuation corresponds to the difference in power (Δ dB) over the distance between two points. The LSA method, when compared to the two-point method, gives an average measurement and is more reliable when there is a high level of noise. However, it should not be used if an event such as an echo appears between the two markers. 150 FTB-200 Analyzing the Results Manually Getting Attenuation (Two-Point and Least-Square Approximation) To get attenuation: 1. From the main window, select the Measure tab. 2. In the Results section, press the Att. button. Markers A and B appear on the graph. 3. Place markers A and B at any two points on the trace. For more information, see Using Markers on page 143. 4. Zoom in on the trace and fine-tune the marker positioning if necessary. For more information, see Using Zoom Controls on page 125. Note: There should not be any events between markers A and B when performing the two-point attenuation measurement. Loss over distance between markers A and B Least-square approximation Compact Modular Platform 151 select the Measure tab. From the main window. you can measure the reflectance of all the events in a merged reflective fault event. 2. To get reflectance: 1. Note: For non-reflective events. see Using Zoom Controls on page 125 and Using Markers on page 143. 3. A and B appear on the graph. 152 FTB-200 . In the Results section. Zoom in and position marker A on the linear area preceding the event to be measured.Analyzing the Results Manually Getting Reflectance Getting Reflectance Reflectance is the ratio of reflected light to input light. Position submarker a at the beginning of the linear area preceding the event to be measured. Note: Using this procedure. 5. For more information. ∗∗∗∗∗ will be displayed. button. press the Refl. Position marker B at the peak of the reflective event to be measured. Markers a. 4. Compact Modular Platform 153 . The ORL calculation will provide the following information: the ORL between markers A and B the total ORL is calculated between the span start and the span end Optical return loss (ORL) refers to the total effect of multiple reflections and scattering events within a fiber-optic system. 3. From the main window. Markers A and B appear on the graph. select the Measure tab. In the Results section. press ORL. Position markers A and B to delimit the area for which you want to know the ORL value.Analyzing the Results Manually Getting Optical Return Loss (ORL) Getting Optical Return Loss (ORL) Note: You must use a singlemode OTDR for ORL calculations. 2. To get the ORL value: 1. . copy. move. You can save and open trace files from the OTDR test application. rename.sor) formats. Saving a Trace in a Different Format With the OTDR application. open. or when you want to work with them after an acquisition. To save an OTDR trace file in a different format: Use the ToolBox 6 application installed on a computer. and delete trace files. you must use the File Manager utility. Compact Modular Platform 155 . To rename.15 Managing Trace Files from the OTDR Test Application Once you have acquired traces. you can save traces in native (. and delete trace files. you will need to save.trc) and Bellcore (. Symbols used in the table Meaning X Conv Fully compatible Conversion or reanalysis necessary Not compatible 156 FTB-200 .Managing Trace Files from the OTDR Test Application OTDR Trace File Compatibility OTDR Trace File Compatibility The table presented hereafter shows the compatibility between the format of a specific trace and the software that you may use to open that trace. 21 or 2.20 later earlier later/ FTB-150 FTB-200 ToolBox 5.6 or 2. X Convb Convc Convc X X X Convc Convc X X X X X Convf.7 to 6.5 or earlier ToolBox 6.f X X X X X X X X Conva Conva Conva.7-6.5 or 2.6 or 2. Conva.7 to 6. b. Triple-wavelength trace files are not compatible.5 or 6.d Conva.5 6. Should be converted to ToolBox 6.7 FTB-100 2.20 format.f Conva..d.21 or later FTB-100 2.ftb300) format and reanalyzed to view the events table.. Should be reanalyzed to view the events table. e.8 or earlier 6.20 ToolBox 6.5 ToolBox 6. Should be converted with ToolBox 6. ToolBox ToolBox ToolBox ToolBox FTB-100 FTB-100 FTB-100 5.Managing Trace Files from the OTDR Test Application OTDR Trace File Compatibility Software used to open the file.5 FTB-100 2.e X X X Conve.2 or earlier FTB-100 2...f Should be saved in or converted to FTB-100 (.8 or later/ FTB-150 FTB-200 a. c. Data should be saved in FTB-300 (.ftb100) format.d. d. f. Compact Modular Platform 157 .7 2.21 or later.d X X X Conva Conva Conva Conva X X X Conva Conva Conva X X X X X File generated with. Moving. you will have to process the files manually via File Manager available from ToolBox CE.Managing Trace Files from the OTDR Test Application Copying. 158 FTB-200 . Renaming or Deleting Trace Files Copying. Renaming or Deleting Trace Files If you want to copy. move. For more information. rename or delete trace files. refer to your unit help. Moving. Note: The information must be entered before acquiring traces in Template mode. You can specify which information must be included in your printed documents. The next time you access the report to document a newly acquired trace. If you clear information from the Report window. you can add notes on the location of the tested fiber. cable ID and fiber ID).16 Creating and Printing Trace Reports For future reference. The information specific to other wavelengths will not be deleted (you must delete it manually). After entering the required data. customer and comments). eliminating repetitive documentation operations. Compact Modular Platform 159 . type of job performed and general comments related to a trace in trace reports. Some other is specific to the current wavelength (job ID. Some of the information is common to all wavelengths (location A and B. both the common and the specific information will be deleted. For more information. Documenting Results After acquiring a trace. see Testing Fibers in Template Mode on page 91. you might want to include or update information about the tested fiber and job or add comments. The information you enter is saved only for the currently open trace file. you may save the contents as a template. the template is automatically recalled. 2. You can edit the Fiber ID only if the Use autonaming option is not selected. Note: If you select the Use autonaming box. Enter the desired information. once a trace has been acquired or reopened. press Report. Note: The information in the Date.Creating and Printing Trace Reports Documenting Results To document results: 1. From the button bar. use the Save as Template button. Press Exit Report to return to the trace display. 160 FTB-200 . the Fiber ID box becomes unavailable. If you want to save the contents as a template. boxes is provided by the application and cannot be edited. The information entered is saved with the trace and can be viewed or changed at any time using the same process. Time. 3. Unit and Serial no. Note: The information appearing in the Date. Unit and Serial no. The Fiber ID can only be deleted if the Use autonaming option is not selected. Time.Creating and Printing Trace Reports Documenting Results To clear all the information from the Report window: Press the Clear All button. Compact Modular Platform 161 . boxes cannot be deleted. and A to B distances. acquisition time. distance. but you can select an option to print all the traces the current file contains (available in Advanced mode only). Available only if you select the option to include zoom X X X X X X X X X X X X X X X 162 FTB-200 . B. depending on the report type you choose: Item appearing on the report Summarized Detailed Cable information (fiber ID. job and customer ID) Comments Marker information (a. software version. location A and B) Link measurement (link length and loss. wavelength. Available only if you select the option to include markers Zoom (traces will be printed with the zoom factor you selected). loss and ORL).Creating and Printing Trace Reports Printing a Report Printing a Report You can print trace reports directly from your unit. as well as A to B attenuation. b. By default. You can print two types of reports: summarized and detailed. average loss. OTDR model. RBS. only the information related to the active trace is printed in a report. refractive index. unit serial and model numbers. The following table shows the various items that can appear on a report. pulse width and helix factor) Events table (with fiber sections) Events table (without fiber sections) Trace Job information (test date and time. A. splice loss and total ORL) Test and cable setup for main and reference traces (file name. cable ID. Zoom on selected event: Graphs will be printed with zoom on the area corresponding to the selected event (one event per trace. The same zoom factor will be applied to all traces (wavelengths) of a particular file. per wavelength). There are two options for zoom: Manual zoom: Graphs will be printed exactly as they appear on screen. i. Compact Modular Platform 163 .Creating and Printing Trace Reports Printing a Report You can include zoom and/or markers in your report.e. 2. From the Print dialog box.Creating and Printing Trace Reports Printing a Report To print reports: 1. You will automatically return to the main window. Select Print to launch the process. select the report options: Report format Desired zoom Markers Select the Print all traces check box to print all traces (wavelengths) from the current file (option available in Advanced mode only) Note: In Automatic mode. From the button bar. 3. 164 FTB-200 . press Print. The report format options are not displayed. the trace report that prints is always the summarized one. This port can be used only to transmit—not detect that tone. The Visual Fault Locator (VFL) application is used to set the OTDR to send a red signal along the fiber. which can be used for visual fault location and fiber identification. Note: The VFL option will be available only if your OTDR is equipped with a VFL port. the OTDR port can transmit a special tone. Any incoming signal greater than –30 dBm will affect the OTDR acquisition and could damage the OTDR permanently. CAUTION Never connect a live fiber to the OTDR port.17 Using the OTDR as a Light Source or VFL If you want to perform measurements with a power meter and your OTDR as a source. Compact Modular Platform 165 . Select the wavelength you want to use. 3.Using the OTDR as a Light Source or VFL To use your Optical Time Domain Reflectometer as a source: 1. ensure that you connect the fiber to the appropriate port (SM or MM). Connect one end of the fiber under test to the OTDR port. depending on the wavelength you intend to use. 2. it is selected by default. 166 FTB-200 . 4. Clean the connectors properly (see Cleaning and Connecting Optical Fibers on page 64). Note: If only one wavelength is available. From the main window. go to the Source/VFL tab. If your OTDR supports singlemode and multimode wavelengths. an operator at the other end will be able to quickly locate the correct fiber or perform loss measurements. Compact Modular Platform 167 . then will be off for the next second.Using the OTDR as a Light Source or VFL 5. press Turn ON. select 1 kHz+Blink or 2 kHz+Blink. For loss measurement. 6. Under Source. Select the desired modulation. Refer to the power meter user guide for details. Using an EXFO power meter with tone-detection features. For easier fiber identification. with a power meter at the other end. and so on. then be sent again for 1 second. select Continuous. You can stop light emission at any time by pressing Turn OFF. select 1 kHz or 2 kHz. such as the FOT-930 or FPM-300. If you select this option. If you want the OTDR to emit light in a flashing pattern. This will allow the person at the other end of the link to identify the fiber under test. Under Modulation. the application also offers a flashing pattern. which could be particularly useful when working with cables containing many fibers. For fiber identification. the modulated signal (1 KHz or 2 KHz) will be sent for 1 second. From the main window. 2. Under VFL. press Turn ON to send the VFL signal. 168 FTB-200 . Connect the fiber under test to the VFL port.Using the OTDR as a Light Source or VFL To identify fiber faults visually: 1. 5. 3. Select Continuous to use the VFL with continuous output or Blink to use the VFL with 1 Hz pulsed output. 4. go to the Source/VFL tab. Clean the connectors properly (see Cleaning and Connecting Optical Fibers on page 64). You can stop the VFL signal emission at any time by pressing Turn OFF. Each type of event is represented by a graph of a fiber trace.18 Description of Event Types This section describes all types of events that may appear in the events table generated by the application. Compact Modular Platform 169 . This will set the end of the events table at a specific event along the trace. an entire acquisition range. An arrow points to the location of the event type in the trace. By default. which illustrates the power reflected back toward the source as a function of distance. This will set the beginning of the events table at a specific event along the trace. Span End The Span End of a trace is the event that marks the end of the fiber span. that is. Span Start The Span Start of a trace is the event that marks the beginning of the fiber span. and is called the end-of-fiber event. Most graphs show one complete trace. Here is a guide to the descriptions: Each type of event has its own symbol. the Span End is placed on the last event of a tested fiber. By default. You can also make another event the end of the span you want to focus your analysis on. Some graphs show only a portion of the entire range to view events of interest more closely. You can make another event the start of the span you want to focus your analysis on. the Span Start is placed on the first event of a tested fiber (typically the first connector of the OTDR itself). The fiber end was not detected because the analysis process ended before reaching the end of the fiber.Description of Event Types Continuous Fiber Continuous Fiber This event indicates that the selected acquisition range was shorter than the fiber length. 170 FTB-200 . There is no loss or reflectance specified for continuous fiber events. The acquisition distance range should therefore be increased to a value greater than the fiber length. Compact Modular Platform 171 . The pulse width should therefore be increased so the signal reaches the end of the fiber with a sufficient signal-to-noise ratio.Description of Event Types End of Analysis End of Analysis This event indicates that the pulse width used did not provide enough dynamic range to get to the end of the fiber. The analysis ended before reaching the end of the fiber because the signal-to-noise ratio was too low. There is no loss or reflectance specified for end-of-analysis events. Description of Event Types Non-Reflective Event Non-Reflective Event This event is characterized by a sudden decrease in the Rayleigh backscatter signal level. It appears as a discontinuity in the downward slope of the trace signal. This event is often caused by splices, macrobends, or microbends in the fiber. A loss value is specified for non-reflective events. There is no reflectance specified for this type of event. If you set thresholds, the application indicates a non-reflective fault in the events table, whenever a value exceeds the loss threshold (see Setting Pass/Fail Thresholds on page 86). 172 FTB-200 Description of Event Types Reflective Event Reflective Event Reflective faults appear as spikes in the fiber trace. They are caused by an abrupt discontinuity in the index of refraction. Reflective events cause a significant portion of the energy initially launched into the fiber to be reflected back toward the source. Reflective events may indicate the presence of connectors, mechanical splices, or even poor-quality fusion splices or cracks. A loss and a reflectance value are normally specified for reflective events. When the reflective spike reaches the maximum level, its top may be clipped due to the saturation of the detector. As a result, the dead zone—or minimum distance for making a detection or attenuation measurement between this event and a second nearby—may be increased. If you set thresholds, the application indicates a reflective fault in the events table, whenever a value exceeds reflectance and/or connector loss threshold(s) (see Setting Pass/Fail Thresholds on page 86). Compact Modular Platform 173 Description of Event Types Positive Event Positive Event This event indicates a splice with an apparent gain, due to the junction of two fiber sections having different fiber backscatter characteristics (backscatter and backscatter capture coefficients). A loss value is specified for positive events. The loss specified does not indicate the true loss of the event. The true loss has to be measured by performing bidirectional fiber measurements and bidirectional analysis. 174 FTB-200 Description of Event Types Launch Level Launch Level This event indicates the level of the signal launched into the fiber. The figure above shows how the launch level is measured. A straight line is plotted using least-square approximation to fit all trace points in the linear area between the first and second detected events. The straight line is projected toward the Y (dB) axis until it crosses the axis. The crossing point indicates the launch level. <<<< in the events table indicates that the launch level is too low. Compact Modular Platform 175 Description of Event Types Fiber Section Fiber Section This symbol denotes a fiber section with no event. The sum of all fiber sections contained in an entire fiber trace equals the total fiber length. Detected events are distinct—even if they cover more than one point on the trace. A loss value is specified for fiber section events. No reflectance is specified for this type of event. The attenuation (dB/distance) is obtained by dividing the loss by the fiber section length. 176 FTB-200 Description of Event Types Merged Reflective Event Merged Reflective Event Reflective Faults Point A Total loss (Δ dB) Point B Merged Reflective Event position This symbol denotes a reflective event combined with one or more other reflective events. It also indicates the total loss produced by the merged reflective events following it in the events table. A Merged Reflective Event is composed of reflective events. Only the Merged Reflective Event is displayed in the events table, not the reflective subevents composing it. Reflective events may indicate the presence of connectors, mechanical splices, or poor-quality fusion splices or cracks. A reflectance value is specified for all merged reflective events and indicates the maximum reflectance for the merged event. A reflectance value is also displayed for each subevent composing the Merged Reflective Event. Compact Modular Platform 177 If there were more than two merged events. The first line is plotted by fitting. 178 FTB-200 . trace points in the linear area following the second event. No loss value can be specified for the subevents. The second line is plotted by fitting. through least-square approximation. The total loss (Δ dB) equals the power difference between the point where the first event begins (point A) and the point on the projected straight line located just below the first event (point B). trace points in the linear area preceding the first event. through least-square approximation.Description of Event Types Merged Reflective Event The total loss (Δ dB) produced by the events is measured by plotting two straight lines. this line would be plotted in the linear area following the last merged event. This line is then projected toward the first merged event. the launched pulse travels up to the end connector and is reflected back toward the OTDR.Description of Event Types Echo Echo This symbol indicates that a reflective event has been detected after the end of the fiber. There is no loss specified for echo events. In the example above. The application interprets this new reflection as an echo because of its characteristics (reflectance and particular position with respect to other reflections). Compact Modular Platform 179 . Then. The distance between the second connector reflection and the end connector reflection is equal to the distance between the end connector reflection and the echo. It is then reflected back to the OTDR. it reaches the second connector and is reflected again toward the end connector. Description of Event Types Reflective Event (Possible Echo) Reflective Event (Possible Echo) This symbol indicates a reflective event that can be a real reflection or an echo produced by another stronger reflection located closer to the source. 180 FTB-200 . the launched pulse hits the third connector. The application would interpret it as a possible echo. A reflectance value is specified for reflective events (possible echo). The application would therefore detect a reflective event located at twice the distance of the third connector. Since this event is almost null (no loss). In the example above. It then reaches the third connector a second time and is reflected once more to the OTDR. and since its distance is a multiple of the third connector distance. is reflected back to the OTDR and reflected again into the fiber. In 10 seconds. The power meter has the following characteristics: Ge. the unit also determines fiber length. Modulated or high-power signal compatible with other EXFO units Compact Modular Platform 181 . During the same test. GeX or InGaAs detector with 40 calibrated wavelengths to measure absolute power or link loss Editable list of favorite wavelengths for easy access Modulated signal detection No offset nulling required in normal operation The light source has the following characteristics: Singlemode port (two or three wavelengths). EXFO’s one-touch automated measurement. Main Features The unit features FASTEST™. also used for FASTEST and ORL. in both directions. optional talk set and visual fault locator.19 Introducing the FTB-3930 MultiTest Module The FTB-3930 MultiTest Module integrates a power meter and light sources with an optical return loss meter. also used for FASTEST only. AND/OR Multimode port (two wavelengths). you can simultaneously test IL and ORL at up to four wavelengths. Introducing the FTB-3930 MultiTest Module Typical Applications Other test utilities: Text messaging Full-duplex digital talk set (optional) Visual fault locator to inspect or identify fibers (optional) Result processing and analysis features (also available in the Optical Test Report Viewer application): Customizable test thresholds with visual pass/fail analysis Customize user settings and cable identification parameters FASTEST results displayed according to FTTx usage and terminology Typical Applications You can use the MultiTest Module for several applications. such as: Fiber installation and maintenance applications FTTx: testing of passive optical networks (PONs) Absolute power or link loss measurements Bidirectional loss and ORL testing Length measurement All-in-one tool for contractors 182 FTB-200 . 20 Customizing Your MultiTest Module To set a length/distance unit: 1. Note: The length unit affects thresholds and fiber length only. To add results on master unit To add results on remote unit To save results automatically Compact Modular Platform 183 . press Setup. From the main window. Select the desired unit. 2. then select the Preferences tab. you will not need to manually save your file (with Save or Save As) after adding results to the Tested fibers list. it consequently ignores automatic save settings from the master unit. then select the Preferences tab. you will not need to press Add to add your result to the Tested fibers list. Add result to remote unit after FASTEST: if you select this option and your MultiTest Module is the master unit. When your MultiTest Module is the remote unit. the result will automatically be sent and stored on the remote unit. From the main window. 2.Customizing Your MultiTest Module To automate adding and saving results: 1. press Setup. Note: For details about naming settings. see Setting Autonaming Scheme on page 187. 184 FTB-200 . Add result to list on this unit after FASTEST: if you select this option. Select one or more of the following options: Save file after adding 10 results to list: if you select this option. Hold the EUI connector adapter so the dust cap opens downwards.21 Setting Up Your MultiTest Module Installing the EXFO Universal Interface (EUI) The EUI fixed baseplate is available for connectors with angled (APC) or non-angled (UPC) polishing. 4. 4 2. A green border around the baseplate indicates that it is for APC-type connectors. Compact Modular Platform 185 . turn the connector adapter clockwise on the baseplate to lock it in place. While pushing firmly. Green border indicates APC option Bare metal (or blue border) indicates UPC option To install an EUI connector adapter onto the EUI baseplate: 1. Insert the connector adapter into the baseplate. Close the dust cap in order to hold the connector adapter more firmly. 3 2 3. Visually inspect the fiber end to ensure its cleanliness. To connect the fiber-optic cable to the port: 1. Clean the fiber ends as follows: 1a.Setting Up Your MultiTest Module Cleaning and Connecting Optical Fibers Cleaning and Connecting Optical Fibers IMPORTANT To ensure maximum power and to avoid erroneous readings: Always clean fiber ends as explained below before inserting them into the port. Do not overtighten. EXFO is not responsible for damage or errors caused by bad fiber cleaning or handling. If your connector features a key. ensure that it is fully fitted into the port’s corresponding notch. thus ensuring adequate contact. tighten the connector enough to firmly maintain the fiber in place. 186 FTB-200 . 1b. Push the connector in so that the fiber-optic cable is firmly in place. Ensure that your patchcord has appropriate connectors. Use compressed air to dry completely. 1c. you will notice heavy loss and reflection. 2. as this will damage the fiber and the port. Carefully align the connector and port to prevent the fiber end from touching the outside of the port or rubbing against other surfaces. Gently wipe the fiber end with a lint-free swab dipped in isopropyl alcohol. If your connector features a screwsleeve. Joining mismatched connectors will damage the ferrules. 3. Note: If your fiber-optic cable is not properly aligned and/or connected. After adding a result to the Tested fibers list. Cable names: maximum 60 characters for prefix. IMPORTANT To start using new autonaming settings. the unit suggests an initial fiber name. the unit then ignores autonaming settings. plus 3-digit suffix (or Microsoft Windows limitations when name is manually set) Fiber names: maximum 11 characters for prefix. Compact Modular Platform 187 . then turn the unit off without saving at least one result. plus 3-digit suffix (duplicate names allowed when name is manually set) Note: If you manually change a fiber name. When you manually change the name for the first time (in Power Meter. the unit prepares the next fiber name by incrementing the suffix. ORL Meter or FASTEST). you must close the current file. this name will be discarded.Setting Autonaming Scheme Setting Autonaming Scheme When starting a new file. 2. Set the names/values. press Setup. Note: The cable name you set here will be the suggested file name when saving. 188 FTB-200 . then select the Results tab. From the main window.Setting Autonaming Scheme To set the autonaming scheme: 1. then press OK. thresholds are not transferred along with results. Measurements exceeding a threshold are shown with an exclamation mark.Setting Pass/Fail Thresholds Setting Pass/Fail Thresholds You can define groups of thresholds to specify acceptable power (in W or dBm). not necessarily the master unit). Compact Modular Platform 189 . Thresholds are supplied by system manufacturers and depend on the system deployed. Results are compared to the threshold group currently associated to the file (for FASTEST results. Note: When transferring results from handheld unit to computer. these measurements also have a red background. In the test tabs. IMPORTANT Thresholds are not saved with measurements. FASTEST loss (in dB and dB per distance unit) and ORL values (in dB) for each wavelength. power reference (in dB). 3.Setting Pass/Fail Thresholds To set power. select a group to modify. distance units are selected in the Preferences tab) or power units. OR Create a new group by pressing New. In the Threshold groups list. 190 FTB-200 . From the button bar. press Setup. loss or ORL thresholds: 1. then select the Thresholds tab. Select loss units (dB or dB/distance. Add wavelength and its thresholds Edit thresholds for selected wavelentgh Delete threshold for selected wavelength 2. but you should always use distinct names to avoid confusion. Duplicate names are allowed. Setting Pass/Fail Thresholds 4. Press OK to return to the main window. select a wavelength for which you want to set thresholds. 6. Compact Modular Platform 191 . To rename a threshold group: 1. then press Edit. From the Thresholds tab. Press Rename. dBm power units selected in Result tab Watt power units selected in Result tab 5. select a group in the Threshold groups list. then set the new name (maximum 64 characters) and press OK. In the Thresholds list. modify threshold values for the selected wavelength. then press OK to confirm the new thresholds (or Cancel to return to previous values). 2. In the text boxes. Wavelengths that are not supported by FASTEST are simply ignored in FASTEST result tables. OR Add a new wavelength to the list by pressing New. You select power units and FASTEST loss units (dB or dB/distance) on the Thresholds tab (and distance units on the Preferences tab). . press Save on function bar) Perform offset nulling Set reference for loss measurement Compact Modular Platform 193 . Power meter port MULTITEST FTB-3930 The following functions are available on your power meter: Measured power/loss Value under threshold Switch between favorite wavelengths Display power (W or dBm) or loss (dB) Change name of next saved fiber Add current value to Tested Fibers (to actually save data. The power meter port is independent of the FASTEST port.22 Measuring Power or Loss The FTB-3930 MultiTest Module is equipped with an optical power meter to measure absolute power (in dBm or W) or insertion loss (in dB). 1340. 840. 1570. 1590. 1510. 850. 840. 1470. GeX Note: The list must always contain at least one selected wavelength. 860. 820. 1540.1570. By default. 1520. plus 1370 and 1060. 1310. Detector Type Calibrated Wavelengths (nm) Default Favorite Wavelengths (nm) InGaAs Ge 800. 1310. Only wavelengths selected from this list are available for measurements. 1520. 1300. 1460. 1290. 800. 1640. 1560. 1280. 1650. 1490. 1480. 1450. 194 FTB-200 . 830. 1540. 1470. 1610. 1390. 1300. 1320. Specifications are guaranteed for calibrated wavelengths only. 910. Same as above. 1490. 870. All the above. the unit will determine values based on the calibrated wavelengths (3-point interpolation). 1550. 1480. 1500. the list contains 22 of the 40 calibrated wavelengths. 860. 880. 1510. 1530.Measuring Power or Loss Defining the List of Favorite Wavelengths Defining the List of Favorite Wavelengths You must put the wavelengths you want to use on a list of favorite wavelengths. 1600. 1550. 1580. 850. 1620. 1530. 1450. 1625. 1270. 910. 1560. For other wavelengths. 980. 1330. 1280. 980. 1320. 1630. Press OK to return to the main window. If a wavelength does not appear on the list. To revert to the factory-default list: 1. 6. Press on the highlighted wavelength to select/deselect it. press Setup. press Setup. Press Revert to factory settings. enter its value in the New wavelength box and press Add. 2. then select the Power Meter tab. Repeat these steps for other wavelengths as necessary. 5. An X appears beside selected wavelengths. 2. 4. From the button bar. Compact Modular Platform 195 . You can also remove a wavelength from the list by pressing Delete. From the button bar. then select the Power Meter tab.Measuring Power or Loss Defining the List of Favorite Wavelengths To customize the list of favorite and selected wavelengths: 1. Scroll through the list. 3. 3. then press OK. you will need to place the caps properly and restart. Nulling status is indicated in the data display. The nulling process takes approximately 10 seconds. IMPORTANT Light must not reach detectors when nulling offsets.Measuring Power or Loss Nulling Electrical Offsets Nulling Electrical Offsets Temperature and humidity variations affect the performance of electronic circuits and optical detectors. From the main window. Your unit has been designed not to require offset nulling under normal operation. Press Nulling. To perform an offset nulling: 1. Tighten the protective caps on the power meter and FASTEST ports. but you should perform it whenever environmental conditions change significantly or when measuring very low power values. 2. Nulling the electrical offsets eliminate these effects. Note: Starting a nulling automatically deactivates all light sources on the unit. Do not use a soft rubber cover. 196 FTB-200 . select the Power Meter tab. Always use an EUI or protective screw cap. If light is still detected. select the Power Meter tab. Note: The reference value you set for each wavelength remains in memory until a new one is set for the same wavelength. even when you turn the unit off. connect a light source to the power meter port of your unit. One single reference patchcord Adapter Reference patchcord MULTITEST Light source Power meter FTB-3930 Two reference patchcords and a bulkhead adapter Compact Modular Platform 197 . To reference the power meter to a source: 1. since it subtracts a reference value from the measured power. 3. your unit displays the loss created by the fiber under test only. Check your fibers and clean them properly for optimum performance (see Cleaning and Connecting Optical Fibers on page 186). 2.Measuring Power or Loss Referencing Your Power Meter to a Source Referencing Your Power Meter to a Source In reference mode. From the main window. Using one of the following methods. Measuring Power or Loss Referencing Your Power Meter to a Source Adapter Reference patchcord Bulkhead adapter Reference patchcord MULTITEST Light source Power meter FTB-3930 4. Activate the source at the desired wavelength. 198 FTB-200 . Match the power meter wavelength with the source wavelength as follows: Measured loss Scroll through the Wavelength list to switch between favorite wavelengths of your power meter (see Defining the List of Favorite Wavelengths on page 194). 5. Reference power appears (in dBm) and current loss is automatically switched to dB. Repeat the procedure for each wavelength you want to reference.Measuring Power or Loss Referencing Your Power Meter to a Source 6. Scroll through the Unit list until you get dB units to retrieve the last saved reference. Compact Modular Platform 199 . 7. OR Press Reference to save the current power as the new reference. perform an offset nulling (see Nulling Electrical Offsets on page 196). 5. except for the referencing step. For loss measurements. then attach a second reference patchcord to the power meter. You can take power or loss measurements and save them for further analysis. OR If you have used two reference patchcords. 200 FTB-200 . 2. disconnect it from the power meter port only. CAUTION Connect high-power live fiber to the power meter port only. reference your power meter to a light source (see Referencing Your Power Meter to a Source on page 197). From the main window. disconnect both of them at the bulkhead. Check your fibers and clean them properly (see Cleaning and Connecting Optical Fibers on page 186). then deactivate the light source. 4. To perform power or loss measurements: 1. If you have used a single reference patchcord. select the Power Meter tab.Measuring Power or Loss Measuring Power or Loss Measuring Power or Loss Measuring absolute power or link loss is done the same way. 3. If necessary. Compact Modular Platform 201 .Measuring Power or Loss Measuring Power or Loss 6. connect a fiber under test to reference patchcords attached to the light source and power meter. If the unit detects a modulated signal. 9. Adapter Reference patchcord Bulkhead adapter Light source Fiber under test Reference patchcord Bulkhead adapter Power meter MULTITEST FTB-3930 7. Match the power meter wavelength with the source wavelength as follows: Scroll through the Wavelength list to switch between favorite wavelengths of your power meter (see Defining the List of Favorite Wavelengths on page 194). Scroll through the Unit list to select the desired power (W or dBm) or loss (dB) unit. 8. it beeps and the signal frequency is indicated in the status bar. Activate the source at the desired wavelength. Using bulkhead adapters or the system patch panels. The fiber name will increment automatically. date and time. see Managing Test Results on page 223. Repeat the procedure for other wavelengths. reference power. If auto-save is activated (see Customizing Your MultiTest Module on page 183). For details about viewing results. Add the displayed values to the Tested fibers list if you want.Change the displayed cable and fiber names as needed. 11. results are automatically saved after adding them to the list. 10a. 202 FTB-200 .Press Add to save the value along with wavelength. 10b. ready to save the next value.Measuring Power or Loss Measuring Power or Loss 10. The FTB-3930 MultiTest Module is equipped with an ORL meter to measure ORL for singlemode fibers. press Save on function bar) Compact Modular Platform 203 .23 Measuring Optical Return Loss Optical return loss (ORL) is the total effect of multiple reflections and scattering events within a fiber-optic system. The ORL meter uses the FASTEST SM (singlemode) port only. ORL meter port MULTITEST FTB-3930 ORL meter sensitivity Measured ORL (positive value) Switch between singlemode wavelengths Value under threshold Calibrate ORL meter sensitivity Set reference using any patchcord Set reference using ORL calibrated patchcord (best) Current wavelength Change name of next saved fiber Add current value to Tested fibers (to actually save data. Measuring Optical Return Loss The ORL measurement procedure is outlined below: Null offsets (see page 196) Set up thresholds (see page 189) Perform ORL reference Set ORL zero Select wavelength Measure ORL Save results 204 FTB-200 . From the main window.Measuring Optical Return Loss Performing ORL Reference and Setting ORL Zero Value Performing ORL Reference and Setting ORL Zero Value The ORL zero measurement eliminates the effects of backreflection on the link before the component under test. so your unit displays only the backreflection of this component. 3. not the reference patchcord) when you remove a connection between the unit and mandrel To set the ORL zero value (all wavelengths at once): 1. MULTITEST FTB-3930 Termination Component under test Compact Modular Platform 205 . 2. You should set a new ORL zero: when you change the measurement patchcord (the one connected to the DUT. Press ORL Zero. select the ORL Meter tab. Connect a patchcord to the FASTEST SM port. 2. select the ORL Meter tab. Terminate the fiber as close as possible before the component under test. Press OK to save the ORL zero value. 206 FTB-200 . 5. adding turns until the reading stabilizes. Wrap it at least 10 turns around a mandrel or small diameter tool. From the main window. To revert to the factory-default ORL zero value: 1. then remove the termination. Press Default ORL Zero.Measuring Optical Return Loss Performing ORL Reference and Setting ORL Zero Value 4. If necessary. 4. 2. perform an offset nulling (see Nulling Electrical Offsets on page 196). select the ORL Meter tab. Connect a fiber to the FASTEST SM port of your unit. Scroll through the Wavelength list to select a singlemode wavelength. Compact Modular Platform 207 . 5. Check your fibers and clean them properly (see Cleaning and Connecting Optical Fibers on page 186).Measuring Optical Return Loss Performing and Saving ORL Measurements Performing and Saving ORL Measurements You can define ORL thresholds (see Setting Pass/Fail Thresholds on page 189) before or after measuring ORL. From the main window. 3. ORL values below thresholds are displayed in red. To measure ORL: 1. Measuring Optical Return Loss Performing and Saving ORL Measurements 6. If no such patchcord is available. press ORL Reference. Perform an ORL reference with one of the following: Using an ORL calibrated patchcord (14. Perform an ORL zero measurement (see Performing ORL Reference and Setting ORL Zero Value on page 205). 208 FTB-200 . 7. press Loopback Ref and use another patchcord connected to the power meter port.7 dB). Repeat procedure for other wavelengths if necessary. For details about viewing results. adding turns until the reading stabilizes. 9. Terminate the fiber as close as possible after the component under test. If auto-save is activated (see Customizing Your MultiTest Module on page 183). MULTITEST FTB-3930 Component under test Termination Note: Avoid bending the fiber between the unit and the termination point. Change the displayed cable and fiber names as needed. The fiber name will increment automatically. results are automatically saved (along with wavelength. 10. 9a. Compact Modular Platform 209 .Measuring Optical Return Loss Performing and Saving ORL Measurements 8. Add the displayed values to the Tested fibers list if you want. date and time) after adding them to the list. Wrap it at least 10 turns around a mandrel or small diameter tool. Press Add. ready to save the next value. see Managing Test Results on page 223. 9b. The displayed value represents the ORL of the component under test. . but not the FOT-910). you need a compatible unit (such as FTB-3930. or 2-wavelength loss tests for multimode fibers.or 3-wavelength bidirectional loss and ORL tests for singlemode fibers. FASTEST singlemode (SM) and multimode (MM) ports MULTITEST FTB-3930 The FASTEST procedure is outlined below: Null offsets (see page 196) Set up thresholds (see page 189) Set up FASTEST Set ORL zero (see page 205) Perform reference Perform FASTEST Save results Compact Modular Platform 211 . The unit at the remote end is only used to establish references. FASTEST is useful in high-fiber-count installations. It then waits for commands from the unit initiating FASTEST (master). in 10 seconds (including fiber length measurement). Activated at the touch of a button. To use FASTEST. FASTEST cuts down on training time and provides error-free results.24 Performing Automated IL/ORL/Length Measurements (FASTEST) FASTEST allows you to perform 2. FOT-920 or FTB-3920. FOT-930. the FASTEST will include loss and/or ORL measurements. Mode/wavelengths: select one or more wavelengths for the FASTEST. Selecting FTTx Custom or FTTx All allows you to define upstream and downstream wavelengths. Unit location: in FTTx mode. 212 FTB-200 . two. Depending on your choice. Compatibility: select FOT-930 / FTB-3930 for fast.Performing Automated IL/ORL/Length Measurements (FASTEST) Setting Up the FASTEST Setting Up the FASTEST You can configure the FASTEST on the master unit only.or three-wavelength testing including ORL (it requires two FOT-930/FTB-3930). Use FOT-920 / FTB-3920 when other unit is an FOT-920 or FTB-3920. The remote unit will automatically adapt to these parameters (FASTEST parameters on remote unit are ignored). you specify if the master unit is closer to the CO (or to the premises) than the remote unit. Setup includes the following elements: Port and DUT (fiber) type: multimode FASTEST will not include ORL. To revert to factory-default FASTEST settings: 1. Press Revert to factory settings. press Setup. then select the FASTEST tab. Compact Modular Platform 213 . 2. From the button bar. then select the FASTEST tab. From the button bar. Select the FASTEST parameters.Performing Automated IL/ORL/Length Measurements (FASTEST) Setting Up the FASTEST To set up the FASTEST: 1. press Setup. 2. you may coordinate an FTB-3930 with up to 10 FOT-930 units. the two connector matings. With multiple referencing. Connector mating System under test Connector mating System under test Connector mating Elements to consider Includes neither an ORL reference nor an ORL zero measurement.Performing Automated IL/ORL/Length Measurements (FASTEST) Referencing Units for FASTEST Referencing Units for FASTEST Referencing subtracts the loss caused by the test setup components from the overall loss measured during FASTEST. accounts for connector loss and adjusts ORL calibration accordingly. When measuring ORL (FASTEST or ORL meter). each unit (FASTEST port connected Slightly more accurate value than to power meter port). Location of units Must be at same location. loopback method. The final result represents the loss inserted by the system under test alone. use the ORL Meter pane (see Performing ORL Reference and Setting ORL Zero Value on page 205). Not recommended for short links. Two referencing methods are available: Side-by-Side Method (Best) Loopback Method Description Reference taken with both units Reference taken separately on together using their FASTEST ports. To obtain them. Loss included in Loss due to system under test and Loss due to system under test and FASTEST result one connector mating. 214 FTB-200 . Can be at different locations. select the Side-by-side reference type. Connect both units through their FASTEST ports. 3. On the master unit (the one initiating the test). MULTITEST MULTITEST Reference patchcord Bulkhead adapter FTB-3930 Reference patchcord FTB-3930 Compact Modular Platform 215 . using two reference patchcords and a bulkhead adapter. IMPORTANT With its multiple referencing feature.Performing Automated IL/ORL/Length Measurements (FASTEST) Referencing Units for FASTEST To perform a side-by-side reference: 1. The data display shows previous reference values (if any) for the currently connected remote unit. 2. In the Reference pane. your unit saves the last 10 side-by-side references for each DUT type and compatibility mode. select the FASTEST tab. try to clean connectors and repeat this step.Performing Automated IL/ORL/Length Measurements (FASTEST) Referencing Units for FASTEST 4. Disconnect the two patchcords from the bulkhead only and connect them to the fiber under test (using bulkhead adapters or the system patch panels). 216 FTB-200 . the unit displays new reference values for each wavelength on both units. Serial number of unit on other side 5. IMPORTANT You can turn off the unit without losing the reference. Press Take Reference. you must take a new reference. After a few seconds. If you disconnect the patchcords from the FASTEST ports. If values are not acceptable. Performing Automated IL/ORL/Length Measurements (FASTEST) Referencing Units for FASTEST To perform a loopback reference: 1. The data display shows previous reference values (if any). MULTITEST Adapter Reference patchcord FTB-3930 Compact Modular Platform 217 . 3. select the FASTEST tab. Connect a reference patchcord from the FASTEST port to the power meter adapter. 2. select the Loopback reference type. On the master unit (the one initiating the test). In the Reference pane. Performing Automated IL/ORL/Length Measurements (FASTEST) Referencing Units for FASTEST 4. Repeat the procedure with the second unit. you must take a new reference. If values are not acceptable. try to clean connectors and repeat this step. the unit displays new reference values for each wavelength. After a few seconds. Press Take Reference. Disconnect the reference patchcord from the power meter adapter only and connect it to the fiber under test. IMPORTANT You can turn off the unit without losing the reference. 5. 218 FTB-200 . 6. If you disconnect the patchcord from the FASTEST port. 4. you initiate it from only one (the master). 2. Clean your fibers properly (see Cleaning and Connecting Optical Fibers on page 186). 4. Clean your fibers properly. Both units use FASTEST settings from the master unit. null the offsets. To perform a FASTEST: Unit A (Master) Unit B 1. 5. If necessary. 1. If necessary. Set up the FASTEST (see Setting Up the FASTEST on page 212). perform an ORL zero measurement from the ORL Meter pane (see Performing ORL Reference and Setting ORL Zero Value on page 205). perform an ORL zero measurement from the ORL Meter pane. null the offsets (see Nulling Electrical Offsets on page 196). 2. If you are testing ORL. Reference your unit. Reference your unit (see Referencing Units for FASTEST on page 214). Compact Modular Platform 219 . 3.Performing Automated IL/ORL/Length Measurements (FASTEST) Performing the FASTEST Performing the FASTEST Although FASTEST requires two units (one at each end of the fiber under test). If you are testing ORL. 3. 8b. press FASTEST (large green button). Add the displayed values to the Tested fibers list if you want. 8a. Change the displayed cable and fiber names as needed. The units establish communication and automated tests begin. 8. The fiber name increments automatically. If automatic save was activated for one or both units (see Customizing Your MultiTest Module on page 183). Press Add. 220 FTB-200 . From the button bar. results are already added to the list.Performing Automated IL/ORL/Length Measurements (FASTEST) Performing the FASTEST Unit A (Master) Unit B 6. Connect reference patchcord to fiber under test (as shown): MULTITEST 5. Connect reference patchcord to fiber under test (as shown): MULTITEST Reference patchcord Bulkhead adapter FTB-3930 Reference patchcord Fiber under test Bulkhead adapter FTB-3930 7. Measurements appear on both units as they are taken. ready to save the next value. Performing Automated IL/ORL/Length Measurements (FASTEST) Performing the FASTEST Unit A (Master) Unit B If you are not satisfied with the results. see Managing Test Results on page 223. press FASTEST and redo the test. Measured values Calculated fiber length Change name of next added fiber Add current value to Tested fibers (to actually save data. press Save on function bar) Compact Modular Platform 221 . For details about viewing FASTEST results. . along with references and date/time of tests.25 Managing Test Results Viewing and Deleting Results You can save all your results (FASTEST. IMPORTANT The date and time of FASTEST references are not saved. They are displayed with the results immediately after the test only. power/loss and ORL) on your Compact Modular Platform. Before or after saving the current file. Compact Modular Platform 223 . you can view and edit results at any time (as long as a result was added to a Tested fibers list). You will save and recall this data according to cable names (or any Windows file name). 224 FTB-200 . they will apply to your results. The following functions are available when viewing results: To mark fiber for deletion To modify job or cable information To select current threshold group IMPORTANT The threshold group you select will remain associated with the file. However. even if you change the default group. if you change values in the selected group. the loss average is always calculated from loss values in W and then converted to dB. select the Results tab. Note: For more accuracy.Managing Test Results Viewing and Deleting Results To view and process test results: From the MultiTest Module application’s main window. data in this field is kept. then select the Results tab.Managing Test Results Customizing Result Display Customizing Result Display You can customize the following elements: Custom fields: sets the names of fields in the Edit Job Information and Edit Cable Information dialog boxes. From the main window. To customize the display of results: 1. For details. press Setup. From Edit Job Information From Edit Cable Information 2. You can also define default initial cable and fiber names. When you change the field name. Compact Modular Platform 225 . see Setting Autonaming Scheme on page 187. Set parameters and press OK. . 1 kHz or 2 kHz) and uses the FASTEST ports. The source status is indicated with a LED in the status bar and on the Compact Modular Platform front panel. High-power signal: reaches maximum power. MULTITEST WARNING When a source is active. The source signal can be continuous (CW or high-power) or modulated (270 Hz. ORL meter or talk set port status (even when you use other applications). depending on the configuration. Note: The Compact Modular Platform front panel always shows the source. Only one source/wavelength may be active at a time. When you switch sources. the modulation remains the same. its port emits invisible laser radiation. but its power slightly varies over the temperature range. The active port (SM or MM) is indicated in the data display. If you switch to power meter or ORL meter. Source singlemode (SM) and multimode (MM) ports FTB-3930 CW signal (the default): constant power over the temperature range.26 Using a Light Source Your unit may contain two source ports: a 2. but about 3 dB lower than maximum. VFL. a Source status pane is always displayed. Compact Modular Platform 227 . Avoid exposure and do not stare directly into the beam. It is indicated in the data display.or 3-wavelength singlemode port and a 2-wavelength multimode port. Ensure that any unused port is properly protected with a cap. To change the signal modulation: 1. Select a modulation using the Modulation dial.Using a Light Source To activate a light source: 1. Activate the source if you want. To deactivate a light source: Slide the Power switch to Off. select the Source/VFL tab (units with a VFL) or the Source tab (units with no VFL). Data display Power button Status LED 3. select a wavelength using the Wavelength dial. Slide the Power switch to On. 228 FTB-200 . 2. From the main window. Connect the fiber under test to the source port (see Cleaning and Connecting Optical Fibers on page 186). In the Source pane. 2. 4. the VFL port emits visible laser radiation. Avoid exposure and do not stare directly into the beam. splices and other causes of signal loss. a VFL status pane is always displayed. Visual fault locator (VFL) port MULTITEST FTB-3930 WARNING When the VFL is active. Ensure that any unused port is properly protected with a cap. From its dedicated port. the VFL emits a red signal which becomes visible at the location of a fault on the fiber. faulty connectors. The VFL status is indicated with a LED in the status bar and on the Compact Modular Platform front panel. Compact Modular Platform 229 .27 Identifying Fiber Faults Visually The visual fault locator (VFL) helps you identify bends. the default) or blinking (1 Hz). If you switch to power meter or ORL meter. This signal can be continuous (CW. select the Source/VFL tab. slide the Power switch to On. If light is coming out of the rubber jacket or on the side of the ferrule. 4. 230 FTB-200 . Data display Power switch Status LED 3. the fiber is defective. Without looking directly into the beam. use the Modulation dial.Identifying Fiber Faults Visually To activate the VFL and inspect a fiber: 1. From the main window. Connect the fiber under test to the VFL port (see Cleaning and Connecting Optical Fibers on page 186). To switch between blinking (1 Hz) and continuous (CW) signals. 2. examine the fiber. Deactivate the VFL by sliding the Power switch to Off. 6. In the VFL pane. 5. you may send text messages to compatible units (such as FOT-930. However. FTB-3930. It is possible to send a predefined message or to write one of your own (maximum 30 characters). Compact Modular Platform 231 . You cannot use other features while sending or receiving a message. You cannot cancel the operation. The messaging feature will not work if both units try to send a message at the same time. custom messages are not kept in memory. IMPORTANT The messaging feature does not work with the talk set port. FOT-920 or FTB-3920) through their FASTEST ports.28 Communicating with Other Users Your MultiTest Module offers two ways to communicate: text messages voice (via the optional talk set) Sending and Receiving Text Messages To facilitate communication between opposite ends of a fiber (especially on models with no talk set). Communicating with Other Users Sending and Receiving Text Messages To send a text message: 1. Connect the units at each end of the same fiber via their FASTEST ports. MULTITEST FTB-3930 2. From the main window, select the Messages tab. List of sent and received messages 232 FTB-200 Communicating with Other Users Sending and Receiving Text Messages 3. Ensure that the port indicated (SM or MM) is the one you use. Otherwise, do as follows: 3a. In the function bar, press Setup, then select the FASTEST tab. 3b. Change the FASTEST port, then return to the Messages pane. 4. Scroll through the Predefined messages list and select a message. OR Enter a custom message in the New message text box. 5. Press the Send button next to your type of message (predefined or new). After a few seconds, your message will automatically appear on the receiving unit (if its MultiTest Module application runs) and on the Message log pane. If an incompatible unit (or no unit) is detected at the other end, or if the FASTEST port of the receiving unit is in use, an error message will appear. When you receive a message: Your unit emits a short beep and displays the received message. Press Close to clear the display and return to your previous function. Press Reply to access the Messages tab and reply to the message. You will then need to return to your previous function manually. However, your last readings will be lost. Note: If the message was written with a language not supported by your unit, you will see unreadable characters only. Compact Modular Platform 233 Communicating with Other Users Communicating by Voice Communicating by Voice With the optional talk set, you can establish full-duplex digital voice communication over a dedicated fiber, even while other functions are in use. The talk set provides adjustable headset volume and uses a dedicated port. It is not compatible with the FOT-920 or FTB-3920 talk sets. Talk set port MULTITEST FTB-3930 Note: You may use any commercially available headset equipped with a microphone. It is also compatible with the GP-92B speakerphone. While communication is established, the actions and displays of each unit may differ as follows: You can send or receive a call at any time, except during a FASTEST. To receive a call, you must be running the MultiTest Module application. Once communication is established, it will be maintained even if you use the unit’s other test tools (including FASTEST). If communication is lost, calling unit will automatically try to reestablish communication. 234 FTB-200 Communicating with Other Users Communicating by Voice To communicate between units: Calling Unit Receiving Unit 1. Connect the calling unit to one end of the fiber via its talk set port, and plug in your headset. 1. Connect the receiving unit to the other end of the fiber via its talk set port, and plug in your headset. MULTITEST 2. From the main window, select the Messages tab. FTB-3930 Compact Modular Platform 235 Communicating with Other Users Communicating by Voice Calling Unit Receiving Unit 3. Press Talk. Your unit establishes communication with receiving unit. If no compatible unit is detected at the other end, a message appears. 4. Talk to the receiving unit. 5. To end the communication, press End from the Talk set pane. When receiving the call, the unit beeps. A phone icon appears to indicate that communication is established. 2. Simply answer (no need to press a key). 3. To end the communication, press End from the Talk set pane. To adjust the headset volume (calling or receiving unit): From the Talk set pane, move the Headset volume slider to the top (volume increase) or to the bottom (volume decrease). You cannot adjust or mute the ring sound. 236 FTB-200 29 Managing Data You can copy, move, rename, delete files and folders directly on your unit. You can transfer files from your unit to a USB memory drive, a CompactFlash card or a computer. You can also transfer data from a storage device or a computer to your unit. Your unit is equipped with 2 types of USB ports: USB host port (type A connector) drives to connect USB memory USB secondary port (type B connector) to transfer data directly between your unit and a computer using a USB cable. IMPORTANT To avoid any problems and prevent malfunctioning, use only the USB drives approved by EXFO Electro-Optical Engineering Inc.. Compact Modular Platform 237 When you have finished. To manage files or folders on your unit only: From Main Menu.Managing Data To view the free disk space on your unit: 1. select File Manager. 238 FTB-200 . Select Platform. 2. press System Info. close System Information. From Main Menu. The free disk space is displayed next to Available Flash items. 3. Compact Modular Platform 239 . When you have finished. The list of available drives and folders should include the card (Storage Card) or the memory drive (Removable Disk). simply close File Manager and reopen it. simply remove the card or the memory drive. Note: If you do not see the card or the memory drive. From Main Menu. You can now manage your files and folders as you wish. Ensure that the holes for the connector pins are towards the back of the card reader and that you see the label with a small arrow on top. CAUTION Always use the card reader’s eject button to remove the card from your unit.Managing Data To transfer files or folders between your unit and a CompactFlash card or a USB memory drive: 1. 2. OR Connect the USB memory drive to the USB host port. CAUTION Applying too much pressure on the card will cause irreparable damage to the card. Insert the CompactFlash card into the card reader until it stops. 3. select File Manager. Connect the provided USB cable to the computer (type A end) and your unit (type B end). 1. refer to the Release Notes on the installation CD. For more information on the installation. you have to install the required software on the computer. install Microsoft ActiveSync. 240 FTB-200 . Follow the instructions given on the screen. If it is not already done. Note: The computer and your unit do not need to be off when you connect the cable. 2. Before connecting your unit to a computer. you will not be able to transfer data. Otherwise.Managing Data To transfer files or folders between your unit and a computer: IMPORTANT You must install Microsoft ActiveSync on the computer you want to use with your unit. You can now manage your files and folders as you wish. Compact Modular Platform 241 . When you have finished. double-click My Computer. right-click the ActiveSync icon then select Explore to access the files and folders stored on your unit. Double-click Mobile Device to access the files and folders stored on your unit. OR On the computer desktop. 4. Once ActiveSync indicates that the computer and your unit are connected.Managing Data 3. simply disconnect the USB cable. . When the test is complete. The ping test has six common parameters: The URL (IP address) The number of packets to send The packet size The maximum time allowed for a packet to reach the remote host The maximum number of hops allowed for reaching the remote host (TTL) A flag to indicate whether a packet can be fragmented.30 Testing Network Connections The two most common basic tests widely used in networking are the ping test and the trace route test. you can quickly verify that the remote host functions properly. You can later import the generated text file (tab-delimited) directly into Microsoft Excel. With these tests. With this test. you can export the results. Performing a Ping Test The ping test is a basic test that measures the average time it takes for a packet to reach the remote host. you can ensure that IP packets travel as expected from a local host to a remote host and vice versa. Compact Modular Platform 243 . select the Ping tab. From ToolBox CE.Testing Network Connections Performing a Ping Test To perform a ping test: 1. then select IP Testing Tools. 244 FTB-200 . From IP Testing Tools. select the Programs tab. 2. 5. You can press the Default button to use the unit's default ping address. 4. Press the Start button. You can stop a ping test at any time by pressing the Stop button. Enter an URL or an IP address to reach.Testing Network Connections Performing a Ping Test 3. Compact Modular Platform 245 . Set the parameters: Packet size Number of packets to send Timeout limit TTL limit Clear the Allow fragmentation check box if you prefer sending complete packets to the host. The default value cannot be configured. Testing Network Connections Performing a Trace Route Test Performing a Trace Route Test The trace route test is used to evaluate the average number of nodes that are required to reach the final host. you can export the results. Set the maximum time allowed for a packet to reach the remote host. You can later import the generated text file (tab-delimited) directly into Microsoft Excel. This trace route test utility enables you to: Enter a remote host address. 246 FTB-200 . Set the maximum number of hops allowed for reaching the remote host (TTL). It is often use to troubleshoot networks (identify routing problems or accesses blocked by firewalls). Choose whether to resolve DNS for the IP address or not. When the test is complete. Press the Start button. You can press the Default button to use the unit's default trace route address. You can stop a trace route test at any time by pressing the Stop button. Enter an URL or an IP address to reach.Testing Network Connections Performing a Trace Route Test To perform a Trace Route test: 1. Set the other parameters: Timeout limit TTL limit Select or clear the Resolve IP addresses check box if you want to get the host name for the corresponding IP address of nodes. From IP Testing Tools. The default value cannot be configured. 3. Compact Modular Platform 247 . 4. 2. select the Trace Route tab. modify the suggested file name. If you want to keep your results for future use.org made on January 3rd. By default. Results are sent to a text file. Fields are separated by the “TAB” character to simplify the importation into a Microsoft Excel worksheet. If necessary.Testing Network Connections Exporting the Results Exporting the Results When a test is complete. you can export the results of the current test page. [DAY] is the day of the test. [MONTH] is the month of the test. the suggested filename would be: Ping for www. 2006. 248 FTB-200 . [YEAR] is the year of the test. you must export them because result files cannot be opened directly from your unit.txt Where: [URL] is the entered URL or IP address.org on 2006_01_03.yoursite. Example: For a ping test at www. the application suggests a file name: For ping test: Ping for [URL] on [YEAR]_[MONTH]_[DAY].yoursite.txt To export results: Press the Export button.txt For trace route test: Trace Route for [URL] on [YEAR]_[MONTH]_[DAY]. turn off the power immediately and let the unit dry completely.31 Maintenance To help ensure long. Avoid unnecessary shocks and vibrations. Store unit at room temperature in a clean and dry area. Keep the unit free of dust. If any liquids are spilled on or into the unit. Keep the unit out of direct sunlight. Compact Modular Platform 249 . Avoid high humidity or significant temperature fluctuations. trouble-free operation: Always clean fiber-optic connectors before using them. Clean the unit casing and front panel with a cloth slightly dampened with water. adjustments and procedures for operation and maintenance other than those specified herein may result in hazardous radiation exposure. WARNING Use of controls. the module casing will have to be opened and a new calibration will be required. Slowly insert the cleaning tip into the EUI adapter until it comes out on the other side (a slow clockwise rotating movement may help). Moisten a 2.Maintenance Cleaning EUI Connectors Cleaning EUI Connectors Regular cleaning of EUI connectors will help maintain optimum performance. There is no need to disassemble the unit.5 mm cleaning tip provided by EXFO with one drop of isopropyl alcohol (alcohol may leave traces if used abundantly). 4 3 5 250 FTB-200 . Turn Push Pull 2. To clean EUI connectors: 1. IMPORTANT If any damage occurs to internal connectors. 3. Remove the EUI from the instrument to expose the connector baseplate and ferrule. 6b.g. EXFO’s FIP).g. Clean the ferrule in the connector port as follows: 6a. then continue to turn as you withdraw it. Put the EUI back onto the instrument (push and turn clockwise). 5. IMPORTANT Isopropyl alcohol may leave residues if used abundantly or left to evaporate (about 10 seconds). 8. 6. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth. EXFO’s FOMS) or fiber inspection probe (e. gently wipe the same surfaces to ensure that the connector and ferrule are perfectly dry.. Throw out cleaning tips and wiping cloths after one use. 6d. Compact Modular Platform 251 . With a dry lint-free wiping cloth. Gently wipe the connector and ferrule. Avoid contact between the tip of the bottle and the wiping cloth. Gently turn the cleaning tip one full turn. Verify connector surface with a portable fiber-optic microscope (e. Note: Make sure you don’t touch the soft end of the cleaning tip. 6c.. Repeat steps 3 to 4 with a dry cleaning tip. WARNING Verifying the surface of the connector WHILE THE UNIT IS ACTIVE WILL result in permanent eye damage. 7.Maintenance Cleaning EUI Connectors 4. and dry the surface quickly. Remove the protective cap and adapter (FOA) from the detector. IMPORTANT Alcohol may leave traces if used abundantly. To clean detector ports: 1. 6. 5. If the detector is dusty. 2. Do not use bottles that distribute too much alcohol at a time.Maintenance Cleaning Detector Ports Cleaning Detector Ports Regular cleaning of detectors will help maintain measurement accuracy. IMPORTANT Always cover detectors with protective caps when unit is not in use. Discard the cleaning tips after one use. moisten a supplied cleaning tip with only one drop of isopropyl alcohol. 252 FTB-200 . 4. gently rotate the cleaning tip on the detector window. While applying light pressure (to avoid breaking the detector window). Repeat step 4 with a dry cleaning tip or blow dry with compressed air. blow dry with compressed air. 3. Being careful not to touch the soft end of the swab. In ToolBox CE. The unit also indicates the charge status with LED on its front panel (see LED Panel Description on page 4): Status LED Battery Charge Status Green Green.Maintenance Recharging the Main Battery Recharging the Main Battery The main Lithium-Ion battery will last about 8 hours in normal operation. flashing Yellow Red Fully charged Charging Low Error Compact Modular Platform 253 . The clock battery is recharged automatically along with the main battery. the charge status is shown above Main Menu. Depending on the way the unit is used. but unit turns off because battery is too weak). The time required to charge batteries depends on various factors such as the type of modules currently in use and the ambient temperature. To recharge the main battery: Connect the unit to a power outlet using the AC adapter/charger. icon indicates that power level is sufficient.g. Fully charge them (about 3 hours) before using the unit for the first time. the charge status icon may no longer correspond to the actual power level of the battery (e. after a while.Maintenance Recharging the Main Battery IMPORTANT Batteries are not charged at the factory. 254 FTB-200 . Never store at temperatures above 60 °C (140 °F). The charge cycle will start and end automatically. A complete calibration cycle will be necessary (see Recalibrating the Battery on page 255). Charge only with specified charger.. You will have to let the battery recharge completely. but the battery will still need calibration. You can stop the process at any time. It will then discharge the battery completely. after a while. You can perform a recalibration with the battery calibration utility: The utility will charge the battery until it is full. The whole calibration process can take several hours.. When a calibration step is underway. Compact Modular Platform 255 . the charge status icon may no longer correspond to the actual power level of the battery (e. A complete calibration cycle will be necessary. but unit turns off because battery is too weak).g.Maintenance Recalibrating the Battery Recalibrating the Battery Depending on the way the unit is used. the “LED” preceding the step name appears in yellow. When a step is complete. icon indicates that power level is sufficient. the “LED” turns to green. then select Program Files>Metrino>MiniShell>BatteryCalibration.Application to start the utility. 256 FTB-200 .BatteryCalibration. Select Metrino. From ToolBox CE. select File Manager.Maintenance Recalibrating the Battery To recalibrate the batteries: 1. the Start Calibration button will become available again. Press the Start Calibration button (the Stop Calibration button will become available). Compact Modular Platform 257 . Connect the AC adapter/charger to your unit. 3.Maintenance Recalibrating the Battery 2. Once calibration is complete. 4. Note: You cannot replace the clock battery yourself. 2. Otherwise. the unit will not be able to revert to your exact work environment (equivalent of a shutdown). 3. Turn off the unit. Do not disassemble. If you let the unit in suspend mode (see Turning On or Off the Unit on page 25). you will have to change the main battery within 15 minutes. Replace battery. 258 FTB-200 . To replace the main battery: 1. Close the battery compartment door.Maintenance Replacing Battery Replacing Battery WARNING Do not throw battery into fire or water and do not short-circuit the battery’s electrical contacts. Open the battery compartment door located on the top of the unit (simply turn the cap counterclockwise and pull it away). Compact Modular Platform 259 .0 dB. 30 ns Δ 10 ns The deviation (Δ) should be between 2. However. Do not measure the deviation near distinct reflections. The OTDR will eventually require a factory calibration.Maintenance Verifying Your OTDR Verifying Your OTDR You can perform several tests to ensure your OTDR operates within specifications. 3. Performance will be affected if the observed deviation is beyond these limits. Connect at least 2 km of fiber to the OTDR output port. you can test your OTDR to verify the accuracy of its measurement origin. To measure the deviation: 1. Measure the deviation between a 10 ns pulse and a 30 ns pulse for each laser. 2.5 km and acquisition time at 180 seconds. Note: This does not affect the precision of distance or loss measurements.0 dB and 3. Deviation is measured to determine if the OTDR needs recalibration. The deviation must be measured in the linear backscatter region. Setting your OTDR to zero can only be done at EXFO. Set the distance range at 2. If the situation persists. Helix factor and RBS). Do not use a test jumper between the OTDR and the fiber under test to limit the number of connectors. Connect at least 2 km of fiber to the OTDR port. the pulse width to the shortest value available. and the acquisition time to 15 seconds. Evaluate the launch level at 0 km by extrapolating the linear region of the curve. you will observe a degradation in dynamic range. 2. Return the OTDR to EXFO. The launch level should be located within the launch window (light green rectangle) appearing on the left side of the Y axis on the graph. Ensure that the OTDR port and connectors are properly cleaned and that the fiber settings are accurate (IOR. 3. clean the output connector again. If the launch level is below this window. 260 FTB-200 . retest the fiber and change the output connector if necessary. Set the distance range to the fiber length used for the evaluation. Note: This does not affect the precision of distance or loss measurements.Maintenance Verifying Your OTDR To evaluate the launch level: 1. the pulse width to 10 ns and the acquisition time to 30 s. approximately 10 m long. Ensure that the OTDR port and connectors are correctly cleaned. 3. If the distance error is beyond this limit. Connect a patchcord. return the OTDR to EXFO. Ensure that the fiber settings are accurate (IOR. Take a distance measurement. The position of the marker should be equal to the length of the jumper (± 2 m). Compact Modular Platform 261 . 8 to 12 m if the jumper is 10 m long. The exact length of the jumper must have been measured mechanically. The analysis should return the right position directly. you should use an unjacketed patchcord. Set the distance range to less than 2 km. For example. 2. to the OTDR port. Helix factor and RBS).Maintenance Verifying Your OTDR To verify the OTDR’s zero: 1. positioning marker A as shown below. Note: You can also press the Analyze button from the Event pane. Ideally. change the output connector. Helix factor and RBS). return the OTDR to EXFO. Use A and B markers in the Measure pane. If reflectance is greater than –35 dB (e. If this is the case. A damaged output connector may be the cause. 262 FTB-200 . as shown below. This is the event dead zone. carefully clean the connector. Use the shortest pulse width and distance range possible. Connect 2 km of fiber directly to the OTDR port. Measure the length (E) of the first reflection at 1. 2. Note: This does not affect the precision of the distance or loss measurements. 1. performance will be affected.Maintenance Verifying Your OTDR To measure the event and attenuation dead zones: 1. If the problem persists. This is the attenuation dead zone.. Measure the distance (A) between the beginning of the reflection and the point where the trace returns to the backscattering level with a 0. If the problem remains even after changing the output connector. –20). the incorrect dead zone will be the result of a bad connection.5 dB from the maximum. Ensure that the fiber settings are accurate (IOR. The reflectance of the output connector should be below –35 dB to attain an adequate dead zone. Ensure that the OTDR port and connectors are correctly cleaned.5 dB uncertainty.5 dB E A If the results exceed the “maximum permitted specification” (refer to the calibration certificate that came with your product).5 dB 0.g. as shown below. 3. In all cases. if you use the shortest fiber length from that setup. OTDR 2km or more 2km or more 1 to M reels of fiber ( Add as needed ) Fiber End Compact Modular Platform 263 . Other configurations are possible. Connect the OTDR as indicated below.Maintenance Verifying Your OTDR To measure the dynamic range: 1. the fiber should have several sections longer than 2 km. with no loss greater than 8 dB and with an average attenuation not exceeding 1 dB/km. and that the fiber settings are accurate (IOR. Helix factor and RBS). Ensure the OTDR port and connectors are correctly cleaned. such as the one explained in the section on how to determine measurement range. Note: This does not affect the precision of the distance or loss measurements. 264 FTB-200 . plus a correction factor relative to the noise amplitude (which is 5. 1 dB Dynamic range Dynamic range is the difference between the launch level and the position on the curve where the peak-to-peak noise level is 1 dB. If this is the case. If the problem persists. clean the connector. If the result falls below the “minimum permitted specification” (refer to the calibration certificate that came with your product). change the output connector.2 dB).Maintenance Verifying Your OTDR 2. If the problem remains even after changing the output connector. Set the distance range to 160 km (singlemode fiber). the pulse width to the longest value available and the acquisition time to 180 seconds. It could be caused by a damaged output connector. return the OTDR to EXFO. you will observe a degradation of performance. Ensure that the OTDR port and connectors are correctly cleaned. with no loss greater than 8 dB and with the average attenuation not exceeding 1 dB/km. One or several non-reflective events with a nominal loss of 0. Helix factor and RBS). Join a series of fiber reels between the OTDR and the variable attenuator for a length of approximately 20 km. Join another series of reels to complete the fiber length needed for the test. Measured Fiber Event 20 km OTDR 2 km or more 2 km or more 1 to M reels of fiber 4 km min Fiber End Variable attenuator ( Add as needed ) Compact Modular Platform 265 . but the fiber should have several sections longer than 2 km. Other configurations are possible. Make sure the fiber settings are accurate (IOR. A variable attenuator will be used to adjust the loss in the span.5 dB should be present.Maintenance Verifying Your OTDR To determine the measurement range (singlemode models only): 1. Connect the OTDR as indicated below. 5 dB splice.1 dB). 266 FTB-200 . the pulse width to the longest value available and the acquisition time to 180 seconds.1 dB. Set the distance range to 80 km (singlemode fiber). The measurement range using the non-reflective event method represents the amount of attenuation (in dB) between the launch level and a 0. You can measure it by simply making an acquisition on a fiber with a known attenuation and a known 0.5 dB splice (which can be detected and measured to an accuracy of ± 0. Attenuation between the splice and the launch level is added until the analysis can no longer measure the splice to within ± 0.Maintenance Verifying Your OTDR 2. You should determine the adequate calibration interval for your unit according to your accuracy requirements. environmental conditions and unit maintenance. For FTB-200 Compact Modular Platform: under normal use. For example. the calibration validity period can be longer or shorter depending on the intensity of use.Maintenance Recalibrating the Unit Recalibrating the Unit Manufacturing and service center calibrations are based on the ISO/IEC 17025 Standard. Compact Modular Platform 267 . Validity of specifications depends on operating conditions. EXFO Electro-Optical Engineering Inc. unless this has been previously agreed upon with the customer. which states that calibration documents must not contain a recommended calibration interval. recommends calibrating your Compact Modular Platform every year OTDR module every year MultiTest module every three years. distributor or commercial partner. in accordance with local regulations. 268 FTB-200 .Maintenance Recycling and Disposal (Applies to European Union Only) Recycling and Disposal (Applies to European Union Only) Recycle or dispose of your product (including electric and electronic accessories) properly. Except for reasons of safety or environmental benefit. 2005 (as identified by the black rectangle).com/recycle. under its brand name. visit the EXFO Web site at www. equipment manufactured by EXFO. This equipment was sold after August 13. Do not dispose of it in ordinary garbage receptacles. recovery and disposal of end-of-lifecycle waste generated by electronic equipment introduced after August 13. Unless otherwise noted in a separate agreement between EXFO and a customer.exfo. treatment. 2005 to an European Union member state with legislation regarding Directive 2002/96/EC. For complete recycling/disposal procedures and contact information. EXFO will cover costs related to the collection. is generally designed to facilitate dismantling and reclamation. Charge the battery. Compact Modular Platform 269 . Unit is not connected to an external power supply. Replace the battery with a fully charged one. Brightness is not set properly. Unit’s backlight is off. Unplug the keyboard and then plug it again. Replace the battery door properly. External power supply Make sure the external power supply is unplugged. Press the backlight button. not been detected. plug in the keyboard. Battery is discharged and unit has shut down. is plugged in at both ends. Connect the unit to an external power supply using the AC adapter/charger. Adjust brightness. Turn off the unit. and turn on the unit.32 Troubleshooting Solving Common Problems Problem Cause Solution Unit does not power up. Connect the unit to an external power supply using the AC adapter/charger. Replace the battery with a fully charged one. External keyboard is not External keyboard has working. Connect the unit to an external power supply using the AC adapter/charger. Charge the battery. Battery is discharged. Screen characters are dim. Battery door is not in place or is defective. Unit screen is dark. Battery is not completely charged. Perform a complete battery calibration cyclea. a. Battery was not fully charged. Impossible to calibrate Screen calibration is the touchscreen via the very poor. then followed by a full charge. Replace the battery. Charge the battery. 270 FTB-200 . A complete battery calibration cycle consists of a full charge. immediately followed by a full discharge. Perform a complete battery calibration cyclea. Press simultaneously and to display the calibration window. Stylus control panel. Unit’s operating time is reduced. Battery indicator remains low after a full charge. Press and hold it down until the unit beeps twice or the corresponding LED turns to red to shutdown the unit. Battery is probably worn out. Press and hold it down until the unit beeps twice or the corresponding LED turns to red to shutdown the unit.Troubleshooting Solving Common Problems Problem Cause Solution One of the application is not responding. then turn it on again to reset it. shorter than the maximum length the a message indicating OTDR can measure. Compact Modular Platform 271 . from the Auto or Advanced main window. If you are testing C fiber.Troubleshooting OTDR OTDR Problem Cause Solution The application displays The fiber under test is Ensure that the fiber under test is too long. select MM 62. If you are testing D fiber. from the Auto or Advanced main window. launch level remains out of the launch window (light green rectangle) even after cleaning and verifying connection. Wrong fiber type selected. that a “Non-resolved fiber end” event has been found.5 μm. In multimode fiber testing. select MM 50 μm. ” Ensure protective caps are tightly screwed on FASTEST and power meter ports and perform the nulling again. Ensure you use the proper fiber and connector type and that you use your power meter within specifications. Power of the signal received at the power meter port is outside its measurement range. 272 FTB-200 . Check the connections.Troubleshooting MultiTest MultiTest Problem Possible Cause Solution Light reaches at least one During offset nulling. you get Power Too Low or Power Too High. Ensure mandrel is correct and that patchcord and connectors are in good condition. is higher than emitted power. Do not use rubber cover. you Reflection is below get ORL exceeds. sensitivity of ORL meter. Perform an ORL zero measurement to increase the sensitivity of the detector. When measuring ORL. “Light detected during nulling. you get the following message: detector (power meter or FASTEST). you Measured reflected power get Too Much Power. Always perform ORL reference before each ORL measurement. The ORL reference is incorrect. When using the power meter. When measuring ORL. but not performed before FASTEST measurement. Set the compatibility to FOT-920 / FTB-3920 in Setup (FasTesT tab) on master unit. Compact Modular Platform 273 . (or reference is outdated). Compatibility set to FOT-930 / FTB-3930 but remote unit is not an FOT-930 or FTB-3930. Probe mode is activated on Deactivate Probe mode. turn source and ORL meter off or exit Probe mode (FOT-930). you get a message saying that loopback reference was not performed. Selected port on master unit differs from actual port to which fiber is connected. Set the port (SM or MM) correctly in Setup (FASTEST tab) on master unit. Remote unit’s FASTEST port is in use. Use text messaging instead. ORL values are inaccurate for short fibers at 1310 nm during a FASTEST. FTB-3930. remote unit (FOT-930 only). — Measure ORL manually. Unable to establish connection with compatible talk set. Talk sets of the FOT-920 and FOT-930/FTB-3930 are not compatible.Troubleshooting MultiTest Problem Possible Cause Solution Unable to establish FASTEST communication. Wait until FASTEST completes. Make sure remote unit is an FOT-930. Remote unit is not compatible. Loopback reference was Perform a loopback reference selected. FOT-920 or FTB-3920. Unable to communicate with an FOT-920 using the talk set. During FASTEST. On Results tab. calculated value is usually shown on the printed report.. some ORL values are higher than the indicated sensitivity. FOT-920 or FTB-3920. negative again.g. Saved text files containing symbols such as “>” may not open properly in some applications. When printing a report. FTB-3930. a box The application is unable to Perform the measurements indicates “Invld” instead of calculate the FASTEST ORL again. a numerical value. a box The calculated value makes Perform the measurements indicates “.-” instead of no sense (e. ORL value)... rightmost columns are not wide. Remote unit is not compatible. On the sending unit. Note that the a numerical value. value (e. column is determined with the widest name.g. The actual measured value is used instead. even if it is not accurate. The Fiber ID column is too Rename fiber IDs that have a long name. When saving data in text formats. set the correct port (SM or MM) in Setup (FASTEST tab). Make sure remote unit is an FOT-930. at 1310 nm for short fibers). 274 FTB-200 . Receiving unit’s port is in use.Troubleshooting MultiTest Problem Possible Cause Solution Unable to send a text message. turn source and ORL meter off or exit Probe mode (FOT-930).. Selected port differs from actual port to which fiber is connected. On Results tab. Wait until FASTEST completes. The width of this printed. Type http://www.com in your Internet browser. You will be given a list of questions pertaining to your subject. Click on the Support tab. Compact Modular Platform 275 . 2. Click on FAQs and follow the on-screen instructions.Troubleshooting Finding Information on the EXFO Web Site Finding Information on the EXFO Web Site The EXFO Web site provides answers to frequently asked questions (FAQs) regarding the use of your FTB-200 Compact Modular Platform.exfo. To access FAQs: 1. 3. The EXFO Web site also provides the product’s most recent technical specifications. close at hand. Avoid high humidity or large temperature fluctuations. Transportation Maintain a temperature range within specifications when transporting the unit. 7:30 a. to 8:00 p.m. The Technical Support Group is available to take your calls from Monday to Friday. The following steps are recommended to minimize the possibility of damage: Pack the unit in its original packing material when shipping. as well as a description of your problem.: 1 418 683-5498 Fax: 1 418 683-9224 support@exfo. 276 FTB-200 .m. Technical Support Group 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA 1 866 683-0155 (USA and Canada) Tel. contact EXFO at one of the following numbers. (Eastern Time in North America). Keep the unit out of direct sunlight. Avoid unnecessary shock and vibration.Troubleshooting Contacting the Technical Support Group Contacting the Technical Support Group To obtain after-sales service or technical support for this product. please have information such as the name and the serial number (see the product identification label). Transportation damage can occur from improper handling.com To accelerate the process. If the equipment is sent back for verification of calibration during the warranty period and found to meet all published specifications.33 Warranty General Information EXFO Electro-Optical Engineering Inc. IN NO EVENT SHALL EXFO BE LIABLE FOR SPECIAL. (EXFO) warrants this equipment against defects in material and workmanship for a period of one year (FTB-200 Compact Modular Platform and OTDR module) and of three years (MultiTest module) from the date of original shipment. unit serial number has been altered. OR CONSEQUENTIAL DAMAGES. EXFO will. or damaged by accident. case screws. EXFO also warrants that this equipment will meet applicable specifications under normal use. other than as explained in this guide. BUT NOT LIMITED TO. or removed. INCLUDING. erased. have been removed. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED. or worked upon by unauthorized individuals or non-EXFO personnel. repair. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. warranty sticker has been removed. INCIDENTAL. unit has been misused. IMPLIED. Compact Modular Platform 277 . as well as verify and adjust the product free of charge should the equipment need to be repaired or if the original calibration is erroneous. case has been opened. other than those specified in this guide. neglected. replace. OR STATUTORY. at its discretion. EXFO will charge standard calibration fees. IMPORTANT The warranty can become null and void if: unit has been tampered with. repaired. During the warranty period. or issue credit for any defective product. 278 FTB-200 . EXFO shall not be liable for damages resulting from improper usage or unauthorized modification of the product.Warranty Liability Liability EXFO shall not be liable for damages resulting from the use of the product. neglect. lightning or other acts of nature. Exclusions EXFO reserves the right to make changes in the design or construction of any of its products at any time without incurring obligation to make any changes whatsoever on units purchased. IMPORTANT EXFO will charge a fee for replacing optical connectors that were damaged due to misuse or bad cleaning. batteries and universal interfaces (EUI) used with EXFO products are not covered by this warranty. nor shall be responsible for any failure in the performance of other items to which the product is connected or the operation of any system of which the product may be a part. fire. pilot lamps. Certification EXFO certifies that this equipment met its published specifications at the time of shipment from the factory. causes external to the product or other factors beyond EXFO’s control. accident. Accessories. abuse. normal wear and tear. water. This warranty excludes failure resulting from: improper use or installation. its accompanying accessories and software. including but not limited to fuses. or calibration. Since calibrations/verifications are not covered by the basic or extended warranties. is found to meet the applicable specifications. after test. repair. To send any equipment for service or repair: 1. 2. prepaid. Be sure to include a statement or report fully detailing the defect and the conditions under which it was observed. 3. Contact an authorized service center (see EXFO Service Centers Worldwide on page 280). Return the equipment. Call one of EXFO’s authorized service centers (see EXFO Service Centers Worldwide on page 280). If equipment must be returned to EXFO or an authorized service center. EXFO will pay return-to-customer shipping costs for equipment under warranty. EXFO will refuse and return any package that does not bear an RMA number. the equipment will be returned with a repair report. Routine recalibration is not included in any of the warranty plans. Compact Modular Platform 279 . After repair. Be sure to write the RMA number on the shipping slip. 5. Note: A test setup fee will apply to any returned unit that. 4. If possible. If the equipment is not under warranty. Pack the equipment in its original shipping material. to the address given to you by support personnel. you may elect to purchase FlexCare Calibration/Verification Packages for a definite period of time. support personnel will issue a Return Merchandise Authorization (RMA) number and provide an address for return. back up your data before sending the unit for repair.Warranty Service and Repairs Service and Repairs EXFO commits to providing product service and repair for five years following the date of purchase. Shipping insurance is at your expense. you will be invoiced for the cost appearing on this report. Support personnel will determine if the equipment requires service. EXFO Headquarters Service Center 400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA 1 866 683-0155 (USA and Canada) Tel.: +86 (10) 6849 2738 Fax: +86 (10) 6849 2662 beijing.Warranty EXFO Service Centers Worldwide EXFO Service Centers Worldwide If your product requires servicing. Tel.com 280 FTB-200 .40.: [email protected]@exfo. rue Andras Beck 92366 Meudon la Forêt Cedex FRANCE EXFO China Service Center/ Beijing OSIC Beijing New Century Hotel Office Tower. Room 1754-1755 No.40.42 europe.: 1 418 683-5498 Fax: 1 418 683-9224 [email protected]. 6 Southern Capital Gym Road Beijing 100044 P R.83.1. CHINA .04.com Tel.85 Fax: +33.com EXFO Europe Service Center Le Dynasteur 10/12.1. contact your nearest authorized service center.85. 01 = max to — 76 dBm 0. 2. Standard recharge time is 3 h. 1550 nm and FC connector. All specifications valid at 23 °C (73 °F).A Technical Specifications IMPORTANT The following technical specifications can change without notice. J-Japan. 640 x 480 TFT 163 mm (6. FTB-200 Compact Modular Platform Display Interfaces Touchscreen.4 in) USB A main USB B remote RJ-45 LAN 10/100 Mb/s Compact Flash Fiber inspection probe connector port (video) Internal 80 MB (Flash) USB sticks 1 GB and 2 GB (optional) Compact Flash cards (optional) Rechargeable Li-Ion 8 h of operation as per Bellcore TR-NWT-001138 AC/DC adapter. For ±0. Not including internal batteries. E-Europe. 1550. input 100-240 VAC. Recharge temperature: 0 °C to 35 °C (32 °F to 95 °F). color. 1625. Specify: A-North America.4 nW (GeX) 0. I-India.exfo. 50-60 Hz. 3. from 18 ºC to 28 ºC Compact Modular Platform 281 .01 = max to —54 dBm 0.1 = —76 dBm to —86 dBm 1 = —86 dBm to min 0.5 g at 10 Hz to 500 Hz (on three main axes) < 760 mm on six sides and eight main edges (according to GR-196-CORE) ACCESSORIES FP1 FP5 GP-10-069 GP-302 GP-308 GP-2001 GP-2011 GP-2012 GP-2013 GP-2014 FP1 200X Fiber Inspection Probe FP5 400X Fiber Inspection Probe Semi-rigid FTB-200 carrying case USB mouse DC car adapter/inverter USB keyboard Compact Flash Ethernet WiFi card Compact Flash Bluetooth card Compact Flash RS-232 card Compact Flash memory 1 GB card GP-2015 GP-2016 GP-2017 GP-2019 GP-2020 GP-2021 GP-2023 GP-2024 GP-2025 GP-2027 (A-E-I-J-S-U) Compact Flash memory 2 GB card 10 feet RJ-45 LAN cable Spare FTB-200 battery USB micro drive 1 GB USB micro drive 2 GB Spare AC charger FTB-200 Spare neck strap Spare belt strap Spare battery door Portable printer. With modules in idle mode. 1650 10 to —86 (InGaAs) 26 to —64 (GeX) ±5 % ±3 pW (InGaAs) ±5 % ±0. Battery maximum storage temperature 60 °C (140 °F). Battery operated. 4. U-United-Kingdom PM-200 Built-in Power Meter Specifications 4 Calibrated wavelengths (nm) Power range (dBm) Uncertainty (%) 5 Display resolution (dB) InGaAs 850. visit the EXFO Web site at www.5 kg (5. At 23 ºC ± 1 ºC. 1310. To obtain this product’s most recent technical specifications. output: 24 VDC. 90 watts Storage Batteries 2 Power Supply GENERAL SPECIFICATIONS Temperature Operating Storage 3 Relative humidity Size (H x W x D) Weight Vibration Mechanical shock —5 °C to 50 °C (23 °F to 122 °F) —40 °C to 70 °C (—40 °F to 158 °F) 0 % to 95 % non-condensing 322 mm x 197 mm x 109 mm (12 11/16 in x 7 3/4 in x 4 5/16 in) 2. 1300.1 = —54 dBm to —64 dBm 1 = —64 dBm to min Max to —63 dBm for InGaAs Max to —40 dBm for GeX 270/1000/2000 GeX Automatic offset nulling range 6 Tone detection (Hz) Notes 1. 1490.05 dB.com.4 lb) < 1. The information presented in this section is provided as a reference only. Up to 5 dBm 6. 2 A max. S-Australia and New-Zealand. 5. 275.5. All specifications valid at 23 °C ± 2 °C (73. typical Pout in 62. 30. 0. using a 5 ns pulse.5/125 μm: 3 dBm (2 mW) Notes 1. 1000 Singlemode: 5. 4. 10.5. 10. Does not include uncertainty due to fiber index and sampling resolution. 6.Technical Specifications OTDR OTDR All specifications below apply to the FTB-7200D-12CD-23B multimode (MM)/singlemode (SM) model and the FTB-7200D-12CD multimode-only version. 30. 100.3. 20. 3. 275.01 0. 1000. 7. 2. 10 000. Multimode dynamic range is specified for 62. 160. 20 000 Class CPR 1 or 2 ± 0.04 to 5 Up to 128 000 ± (0. 20. 260 Multimode: 5.5 Singlemode: 0. 100.5/5 Distance range (km) Pulse width (ns) Launch conditions5 Linearity (dB/dB) Loss threshold (dB) Loss resolution (dB) Sampling resolution (m) Sampling points Distance uncertainty6 (m) Measurement time Real-time refresh (s) Stable source output power7 (dBm) Visual fault locator (optional) Multimode: 0.75 + 0. Typical dynamic range with longest pulse and three-minute averaging at SNR = 1. unless otherwise specified.3. 10.0025 % x distance) User-defined (60 min maximum) Guaranteed: 0.6 °F) with an FC/PC connector. 80.4 °F ± 3.3.5 (1300 nm). Typical dead zone for multimode reflectance below −35 dB and singlemode reflectance below −45 dB. 40 Singlemode: 1.04 to 2. a 3 dB reduction is seen when testing 50 μm fiber.5 μm fiber.03 0.1. 650 nm ± 10 nm CW. 0. Typical output power is given at 1300 nm for multimode output and 1550 nm for singlemode output. 282 FTB-200 . 5.001 Multimode: 0.4 −1. 2500.5. 3 (dB) 27/26 37/35 Event dead zone4 (m) 1/1 1/1 Attenuation dead zone4 (m) 3/4 4. 1. Controlled launch conditions allow 50 μm and 62. 2.5 μm multimode fiber testing. 2. Model FTB-7200D-12CD-23B/FTB-7200D-12CD Wavelength (nm) 850 ± 20/1300 ± 20 1310 ± 20/1550 ± 20 Dynamic range2. 10. 40. −7 (1550 nm) Laser. 5. 5. 160.01 0. 40.3. unless otherwise specified.4 °F ± 3. 14. typical Pout in 62.5/38. 1000. Pout maximum: 800 μW Dynamic range at 20 μs9 (dB) 37/35 39/35/38/36 41. 100. 10 000. 260 5. refer to the Ordering Information General Specifications Distance range (km) Pulse width (ns) Linearity (dB/dB) Loss threshold (dB) Loss resolution (dB) Sampling resolution (m) Sampling points Distance uncertainty14 (m) Measurement time Real-time refresh (s) Stable source output power15 (dBm) Visual fault locator (optional) 7200D/7300D series 1. 5.001 0. Typical dynamic range at 1550 nm for the FTB-7503B-B and FTB-7523B-B configuration is 2 dB lower.3. Model Wavelength (nm) Dynamic range2.5/125 μm: 3 dBm (2 mW) 7400B-B/ 7500B-B/74234C-B series 1. 10.5. 13. 10 000. 20. 650 nm ± 10 nm CW.04 to 5 Sampling points Up to 128 000 Distance uncertainty6 (m) ± (0. 40 Singlemode: 1. 6. 100.512/39 42. 20 000 ± 0. 30.5/5 4. 5. 100.01 Loss resolution (dB) 0. typical Pout in 62. All specifications valid at 23 °C ± 2 °C (73. Typical output power value at 1550 nm. 0. Typical dead zone of singlemode modules for reflectance below −45 dB.6 °F) with an FC/PC connector. 2. 0.03 0.5/39. 160.5. 11. 40.5. Typical dynamic range with a three-minute averaging at SNR = 1. 3. 650 nm ± 10 nm CW.5 (7300D) Laser. Multimode dynamic range is specified for 62.5. 10. 1. 275. 2500. 10. 20.4 Stable source output power7 (dBm) −1. 80.01 0. 1000. 260 Pulse width (ns) Multimode: 5. 260 10. 275. 20.04 to 5 Up to 128 000 ± (0. Typical output power is given at 1300 nm for multimode output and 1550 nm for singlemode output. 80.513/41. 2.0025 % x distance) Measurement time User-defined (60 min maximum) Real-time refresh (s) Guaranteed: 0. 2. 7. 20 000 5 Launch conditions Class CPR 1 or 2 Linearity (dB/dB) ± 0.3.75 + 0. 2. 1000.6 °F) with an FC/PC connector.75 + 0.5/125 μm: 3 dBm (2 mW) Event dead zone4 (m) Attenuation dead zone4 (m) 1/1 3/4 1/1 4. 10. −7 (1550 nm) Visual fault locator (optional) Laser. 160.08 to 5 Up to 52 000 ± (1 + 0.0025 % x distance) User-defined (60 min maximum) 1 −5 Laser.001 0. 10.3 −8 (7200D). 1000 Singlemode: 5. 30.4 Typical: 0.5 μm fiber.05 0.1. 80. All specifications valid at 23 °C ± 2 °C (73. 2500.5/41.5 FTB-7503B-B-ER11 1550 ± 20 44 For complete details on all available configurations.4 °F ± 3.5/5 Notes 1. Typical dead zone for multimode reflectance below −35 dB and singlemode reflectance below −45 dB. 20. 650 nm ± 10 nm CW.5 section. 15. Compact Modular Platform 283 .5 (1300 nm).5/5/5 10/10/15/16 8/10/10 10/15/16 15 Notes 8. 5. 30. 10.03 Loss threshold (dB) 0.5 Singlemode: 0.5. 5. a 3 dB reduction is seen when testing 50 μm fiber.25.Technical Specifications OTDR All specifications below apply to the FTB-7200D-12CD-23B multimode (MM)/singlemode (SM) model and the FTB-7200D-12CD multimode-only version. 40. 9. Controlled launch conditions allow 50 μm and 62. −4.5/5.5/43. 4. using a 10 ns pulse (5 ns pulse for 7200D and 7300D). Does not include uncertainty due to fiber index and sampling resolution. Does not include uncertainty due to fiber index and sampling resolution. 2500.5 45/4513/43 45. 12. 5. 100. 275. 30.25. 3 (dB) FTB-7200D-12CD-23B/FTB-7200D-12CD 850 ± 20/1300 ± 20 27/26 1310 ± 20/1550 ± 20 37/35 Distance range (km) Multimode: 0. 10 000. unless otherwise specified.5/40.001 Sampling resolution (m) Multimode: 0. 20 000 ± 0.5 μm multimode fiber testing. 2.0025 % x distance) User-defined (60 min maximum) Guaranteed: 0. Event dead zone10 (m) 1/1 1/1/1/1 3/3/3/3 3/3/3 3/3/3 3 Attenuation dead zone10 (m) 4. Typical dynamic range on NZDS fiber with a three-minute average at SNR = 1. Typical dynamic range at 1550 nm for the FTB-7423B-B configuration is 2 dB lower at 10 μs and 1 dB lower at 20 μs. 10. 275.04 to 2. Singlemode OTDR Module Specifications8 Model Wavelength Dynamic (nm) range at 10 μs9 (dB) FTB-7200D-XXX 1310 ± 20/1550 ± 20 35/34 FTB-7300D-XXX 1310 ± 20/1490 ± 10/1550 ± 20/1625 ± 10 38/34/37/35 FTB-74XXB-B 1310 ± 20/1410 ± 10/1550 ± 20/1625 ± 10 40/37/4012/38 FTB-74234C 1310 ± 20/1550 ± 20/1625 ± 10 41/40/38 FTB-75XXB-B11 1310 ± 20/1550 ± 20/1625 ± 10 43. 10. Typical dynamic range with longest pulse and three-minute averaging at SNR = 1. using a 5 ns pulse. 1 nW 800 to 1650 0. feet.15 0. 5.15 0. connector adapter (FOA) according to chosen connector. For graded-index MM fibers. 9. After a warmup time of 6 minutes.25 5 VFL9 Emitter type Wavelength (nm) Output power (dBm) -12D (second port) 850 ± 25 1300 +50/–10 LED –24/–24 (62. 10. rms for lasers and at –3 dB for LEDs. in CW source mode. At 23 °C ± 1 °C and 1550 nm with FC connector and on batteries.05 -4 1310 1550 1625 56 0.5 cm x 26 cm 0.01 40 3 Yes FTB-3932X GeX 26 to –55 ± 5 % ± 3 nW 800 to 1650 0.05 -5 1310 1490 1550 56 0. miles -4 1310 ± 20 1550 ± 20 1625 ± 10 Laser –1/–4/–7 5/ 5/ 5 ± 0. Certificate of Calibration. 2. Without batteries.25 5 Laser 650 3 3 Yes kilometers.Technical Specifications MultiTest MultiTest SPECIFICATIONS1 External Power Meter Detector type Measurement range (dBm) Uncertainty2. typical values for LEDs.25 200 Standard 1310 ± 20 1550 ± 20 Laser –1/–1 5/ 5 ± 0. typical. 9. 8.5/125 μm) 50/135 ± 0.05 -12C (second port) 850 1300 40 0.5 0.5 kg 0 °C to 50 °C –40 °C to 70 °C 0 % to 95 % non-condensing 3 (3 3/4 in x 1 in x 10 1/4 in) (1. > –30 dBm for GeX and > –57 dBm for InGaAs. Typical value. 12. 284 FTB-200 . at 1550 nm for SM and 850 nm for MM. uncertainty is valid at calibration conditions.15 0. Power of > –45 dBm for Ge. unless otherwise specified. mandrel and alcohol cleaning pads.01 40 3 Yes -5 1310 ± 20 1490 ± 10 1550 ± 20 Laser –1/–7/–4 5/ 5/ 5 ± 0.05 nW 800 to 1650 0. uncertainty and linearity are functions of input power.25 200 Laser 1550 ± 20 45 40 -12C (second port) 850 ± 25 1300 +50/–10 LED –30/–30 (50/125 μm) 50/135 ± 0.6 cm x 2. meters. 3 Wavelength range (nm) Display resolution2 (dB) Calibrated wavelengths Recommended recalibration period (years) Automatic offset nulling4 Measurement-distance units Sources Wavelengths5 (nm) Emitter type Laser Minimum output power5 (dBm) Spectral width6 (nm) Stability7 (8 hours) (dB) FasTesT Wavelengths (nm) Loss range8 (dB) Loss precision9 (repeatability) (dB) Side-by-side Loopback Length measurement range (km) Length measurement uncertainty10 ± (10 m + 1 % x length) Dedicated ORL ORL range (APC / UPC) (dB) ORL uncertainty9 (dB) Resolution2 (dB) General Specifications Size (H x W x D) Weight Temperature operating storage12 Relative humidity Warranty (years) Standard Accessories User guide. In High source mode. As defined by Telcordia TR-TSY-000887. Typical value.15 0.01 42 FTB-3933 InGaAs 6 to –73 ± 5 % ± 0. Resolution. 6.25 200 All SM Wavelengths 65/55 ± 0. 3. 4. 11.01 Talk Set Emitter type Wavelength (nm) Dynamic range at 1550 nm (dB) Dynamic range MM11 (dB) Notes: 1.15 0. For fiber length 120 km. 7. up to 20 dBm for GeX.05 -12D (second port) 850 1300 46 0.1 lb) (32 °F to 122 °F) (–40 °F to 158 °F) FTB-3932 Ge 10 to –70 ± 5 % ± 0.05 Standard 1310 1550 60 0. Traceable to NIST. kilofeet. . 124 autonaming MultiTest........................................ column in events table............................................. starting ............................... 84 acquiring traces Advanced mode................................................... 73 acquisition-specific fiber parameters .... 152 analysis after acquisition . 150 reflectance ........... 5 AC requirements ............................................. 4......................... 73 setting fiber parameters............. 74 pulse width used .............................................................. 207 basic OTDR theory .......... pass/fail .. 7.... 128 A AC LED .... 35 source..................................... 77 testing ............................................... 4........................................ tab ................................. 150 Auto mode acquiring traces ...... trace ........ 67 automatic acquisition time..................... 182 application................. 86 analyzing a trace.......................................... 136 thresholds....................................................................... 189 ***** indication ..................................................... 95 acquisition automatic. tab ........ 152 two-point measurement method .... 105 Auto mode ......... 112 attenuation fiber section ............................................. 73 after-sales service ........................................ 150 measurement.... 70 testing ................ 65 autorange acquisition time........................... typical....................... 253 clock ........................................................................................... 129..................... 184........................ 105 date ........................ 73 Auto mode ................ 26 applications............ 95 time.............. 85........................ 69 Template mode................... see analysis...................... 91.......................................Index Index ! ................................... 128 average splice loss in Trace Info...... 5 Compact Modular Platform 285 ................................................ 128 active trace selection ....... 80 custom time values........... see autorange acquisition time automatic zoom reset.... 128 setting analysis detection thresholds ................................... after acquisition analyzing results................... 182 Att.... 77 average loss in Trace Info........ 69 selecting test wavelength ............... 86 LSA measurement method.......................................... 276 B backreflection measurement .................. 73.................... 161 duration........ detection ... 73 Advanced mode.. 160................................ autorange........ 122 Advanced mode acquiring traces ......................................................... in Advanced mode........................... 67..... 67 changing resolution................... 31 LED ... 139 fiber span.......................... 187 OTDR.................. 77 wavelength used .......... 165 accuracy......... 13 accessing power meter. 60 battery charge status ..................... 141 thresholds...................................................... 136 Template mode................................. 128 interrupting ........................................... 127 setting the autorange acquisition time ......................................................................... 67.................................................. ............. threshold loss ....... 55 deleting events .......................................................................... 250 fiber ends .............. 196 capacitors............... 267 interval ......................... zoom...................... 82 Pulse ................ 8 certification information .............................................................................. 186 front panel ................. see controls............ 181 device under test................... electrical.. 109 trace editing........... 160....................... 252 EUI connectors.................. 267 Canadian Standards Association (CSA)..... 37................................................. 65 default trace name ...................Index maintenance recommendations ...................................................... 86 connectors............. 181 calibrating the touchscreen........ ix changing batteries .................................................................. in the events table .................... 112 current..................... 253 recharging .... 125 conventions............. 114 description LED panel........................................ 112 cumulative loss .. 37........................................... 252 detector types ................................... eliminating. 203 power meter ................... 196 cleaning detector ports................................................................................................................................... safety. 196 data points ............ 134 delimiting fiber span ........................... 80 moving ..... see battery cold shutdown ................................................ 13 customer service....................................................................... 254 replacing or removing ..... 109 buttons..... transferring ....................................... power meter detector port...........................ix Cumul........................... 45 traces from the display (OTDR) ............ modulation............. 193 description of event types ................... 250 connectors.......... 110 communication talk set................... zoom ................. see DUT dial Distance ..... file name ........................... 25 color of traces in display .......... cleaning ........................... 162 detecting module .......... 80 286 FTB-200 ....... 187 calibrated wavelengths ............................. 181 detector see. charging battery with................................................................. 254 caution of personal hazard.................................. 258 circuit performance ............. 231 component under test................................... 8 CR2032-type battery...................... 84 data.......... 279 D dark current effects...................................... 161 decrementation.................................................183–190 connector.................. 249 clearing power meter display ........... 258 buttons scroll............. 123 clock battery.... 19 detection........... cleaning ........ 5 ORL meter ........................................ ix cancelling dark current effects ....... column in events table ........................................... in events table ............................. 8 of product hazard........... 12 car outlet.. illustration of............................... 181–182 controls......... 65 definition of the OTDR............................. 182 date of trace acquisition.... 234 text messages .................................... see DUT configuring application ..... 27 calibration certificate...... 80 Time.......... 169 detailed report......... zoom C cable and fiber names ........... see battery Create Ref................. seeTemplate mode CSA..................................... 37.............................../Template OTDR................................................... 4...... 64......................... ...................................... 37............ 144 displaying fiber sections ..... cleaning ............................. 185 EUI connectors................................... 176 launch level....... pass/fail................................................................... 146 total.. 171 end-of-fiber.............. tab . 121 distance between events ............................ 279 establishing talk set communication .. 110 DUT ............ 132 location ......................... 172 positive event................ 215 E electronic offsets............................... 136 event .................................. 134 event loss average.. 112 threshold......................... 60 range .. 124 injection level in events table.............. 63.................................. 113 scroll buttons ..... 128 in events table ................. 169 span start........................... 173 reflective event (possible echo) .............. 145 effect of setting as span start/end ........................... 275 Compact Modular Platform 287 ............................. in Trace Info....... in Trace Info........................................................................ 112 measurement................................................................................................................. 114 fiber span ........................................... 128 number ............................................ 63......................................................................................... 129........................... 109 trace editing buttons .. 169 continuous fiber.............................................. 234 EUI baseplate ................................. 205............ 111 non-reflective........ 169 fiber section .................................................. 63.. 80 distance unit . 212.................................... 87 undeletable...... averaged loss. 109 exclamation mark .............................................. 250 event deleting ........... eliminating ... 185 dust cap...................... 86 thresholds........................................... 169 difference with fault ..................... 88..........Index disappearing marker . 87 name..... displaying .............................................. see event loss marking fault in events table .................................................................. 189 EXFO service centers ................ 112........ 183 dual-wavelength trace color in display ............................... 145 equation ..... 128 event types description ..................................... 196 ending talk set communication ....... 109 locating event .................................................... 197....................... 141 fault notification.............. 112 reflectance ........ 169 events table description .................. 169 equation of distance ....... 174 reflective event........... 185 connector adapter ....................... tab ............................................ 87 traces........................ 113 loss................. 236 end-of-fiber detection threshold ........................................ 134 description of types ......... 177 non-reflective event . see EUI EXFO Web site ...................... 60 distance measurement.................. pass/fail message............................ 180 span end .............................................................................................................. 280 EXFO universal interface........... 179 end of analysis ............... 175 merged reflective event ................................................................. 200....................... 60 equipment returns ........................ 114 pass/fail messages ............................ 87 insertion ............ 170 echo... ....... 9–11 headset.............................................................. 12 intermittent signal.................................. see DUT file name...... 60 marking in events table ........ 189 wavelengths............ 41 section attenuation..... selecting ............. 84 I identification label.................. see loss installing unit ................................... setting acquisition-specific (Advanced mode)... 50............................................................... 127 default ....... 187 fiber ends........................................ 221 fiber parameters...... 78 in Trace Info.. 116 flagging failed events................................................... tab.... 4..................................................................................................... 276 identifying fiber under test......................................................... 88 total loss in Trace Info................. 114 span length ... 88 fiber and cable names .... tab ............................... 181 high-resolution feature................................. 65 indoor use ........................................... 64................................. 116 grid display.... 186 fiber length measurement... 165 measuring optical power .......................................... 212 fault difference with event.................... 17 insertion loss (IL).......................................................... 70......... 78 hiding traces............................... 86 sections display......... 181 fiber attenuation.......... 182 G General tab....................................................................... in trace display .......................... 78 fiber span analysis ................. 13 inserting a module ........ file name ............................................. 114 length in Trace Info... 275 FasTesT thresholds................................ tab .. using ... 141 average loss in Trace Info................................................... 181 features ................ 128 see also fiber span ...... LSA ... 212 FTTx results ........................................................................................................... 181................. tab .............. laser radiation....... 5 hazard.................................................................. 249 FTB-200 shutting down ..... 155 FTTx mode/wavelengths ................... 128 zooming (automatic) ....... 124 fiber under test................. 61 front panel............. for events ...... cleaning... 128 average splice loss in Trace Info.. 25 FTB-200 trace format........ 114 input current ....... 127 setting ......................... 128 delimitation .................... 87 forced selection of test wavelength ...Index F failed events............................. 121 high-power source .................... tab..................................... 159 identifying visually ...... cleaning .... 12 injection level............................. 235 helix factor admissible values ................ 128 setting ............ 230 288 FTB-200 ..... in events table.. 146 Fresnel reflection ................................... 88................................................................................................ 87 FAQs..... 128 type in Trace Info........................................ tab....... 87 notification............ 165 incrementation................................... 76 four-point measurement method vs............................ 211............................ 87 favorite wavelengths ........................ 129 modification ....................................... flagging.......... 116 H hard drive LED ............ 65...................... 112 identifying by name.. ...... 150 event distance.......................................... 13 measurement attenuation (two-point and LSA) ................................................ 203 power ..................................................................................................... 128 connector .. 181........................................................................................... 200 reference ...................... 5 length unit ............................................. 165 launch level ................ 41 measurement units............................................................................ 149 non-reflective events average ................................................................. 128 in events table ......... 200 ORL ............................ 78 setting ................................................... 250 front panel..........9–11 laser safety LED .. positioning markers .. 214 saving results . 78 LSA measurement method definition ................................ see LSA LED panel description......................................... 183 length.............................................................. using OTDR as source.... 249 general information ................................... 189 see also power meter M mail feature.................... 201 source ......... tab . 150 L label...... see source list of favorite wavelengths ......... 146 vs............ 4.................................................. 112 measurement............... 113 loopback referencing method ........................... see source laser.......... 128 average splice .............................................. see text messages modulation detection of ........................... 112 locating events ............. 5 laser source.....................................Index IOR in Trace Info.................................... 194 Loc........... 214 loss average for fiber span................ 145 event loss .. 118 with power meter ........ 197.............................. 86 cumulative for fiber span................... 146 measurement................................ 86 loss measurement description...... 249 marker disappearing on zoom . 150 vs......................................................... identification ............................................... 127 obtaining .................................................. two-point............................................................................................ 17 removal...... 183 measuring loss ..... four-point .............................. 202 thresholds............ 128 splice ................................................................... 129 modification .................................... 227 VFL................................. 181.... 229 module detection ......................... 253 detector ports . 19 insertion.. 181.............. 4..................................... see text messages maintenance battery ........ 146 event RBS level ................................ 260 least-square approximation................................................ 252 EUI connectors .... 221 light source................... 153 units................. 276 laser safety information .............................................. 17 Compact Modular Platform 289 ............ fiber ............. 144 too close to one another............................... 145 ORL . in events table.................................................................................................... 144 maximum input current....................................... 200 message feature............... 211.................................. 181.............. 181 performing ......................... ............................... 181.................. 193 measurement.. displaying.............. averaged loss .............................. 46 description.... 187 non-reflective event.................................................................................. see thresholds performing null measurement .......................................................................................... 87 enabling........................................................................... 211...... 37.............. 35 buttons description................................................................. 78 Template mode..... 5 power measurement........................ 61 using as laser source.......... 41 modulated signal detection ......... 200 photodetector .................... 37... 60 PON testing .. 112 of the event .......................................................................... 128 nulling offsets.... 184............ 203 performing ......................... 196 optical return loss......... 165 optical detector performance.................. 116 pass/fail message display .. 196 opening trace file ........................... see loss power meter accessing . 87 pass/fail thresholds..... 185 multimode port............................................................ 48 recalling results ................................................. 36 clearing the display ..................................... 40 results .. performing ...... 65 naming results automatically ............................................................... 112 O offset nulling.................................... 32 ORL measurement description..................................................................................................... 153 OTDR basic theory . 94 trace automatically ................................... 87 when to perform ........ 182 ports............ see ORL measurement option used at start-up .. 78 IOR...... 181 display ................... 44 reference values .................. 87 pass/fail test disabling ............... 207 thresholds... 227 multiple referencing ............ 41 ORL measurement.................................................... 193 detector types ................. 107 operating light source ..... module required for calculations ................... 77 helix factor........ 196 optical power measurement ............... 205 power or loss measurement.................................................................................................. 214 multiwavelength trace file... see ORL optical return loss........... 260 290 FTB-200 ......... 156 launch level........................................... 201 printing a report .......... 78 Rayleigh backscatter coefficient ....... 121 P parameters Advanced mode........................................... 37. 165 OTDR software file compatibility between versions....... 43 N naming reference trace.................................. 55 internal components .....Index mounting EUI connector adapter ..... 181.................................... illustration of........ 189 ORL zero measurement.................................................... 92 trace display................................................................................. 63......................................... 4.................................. 181–182 power LED ........ 207 ORL zero measurement ............. 45 creating a report ............... see offset nulling number in events table ............. 205 ORL......................................... 181................ 60 definition.. ....................................................................................................... 48............................................. FTB-200 ........ 92 results autonaming .. power meter .................................................................................. 182 saving . 13 precision.......................................... 197 side-by-side method ................................................... 8 conventions .............................. 9–11 warning ....... 187 product features ............ see ORL measurement return merchandise authorization (RMA) ....... 214 multiple . 78 setting ................... value in ....................................... 252 pulse dial ........ 17 repairing unit.................................................. 112 of non-reflective events............................................. trace.. 127 obtaining ............... 81 saving format.............. 80 R radiation hazard........ 194 power reference............ 187 ORL measurement.................. 136 of event ..................................................... 214 reference trace naming ......................... 129.............. 70 restrictions Ref................. zero power.. 267 recalling results........................ 128 setting width ........ 258 report content .... 129 modification ........................................ 40 reference measurement loopback method ............. 233 red..........................9–11 RBS (Rayleigh backscatter) description............ setting................................ 281 protective cap .................................. 46 of trace ......... 184 return loss................................................ 8 same pulse and time for all wavelengths........................................................................................................................................... 152 source of inaccurate measurements........... 38 thresholds................ 139 recalibration .............. 37.... 145 re-analyzing a trace ...................................... 155 power/loss results ..................................... Creation/Template mode .................. 94 parameters....................... 101 reference............................................ 8 information........................... 209 processing features .................... 112 reflectance attenuation ................ 40 values................ 159 printing..................................................... naming................................. column in events table .........Index setting thresholds ....... 162 creating for power meter results.............................. tab ................ 38 wavelength list ..................... 279 ring volume .............................. 152 detection threshold. 214 power meter............. 189 reference mode ................... 181 identification label........................ 202 Compact Modular Platform 291 ................................... Auto mode ................................. 79 removing a module ............ setting .............................................. 275............................ 78 RBS level measurement event.................................................................................... AC ...................................................................................................................................... tab ... 196 Refl..................................... 12 replacing or removing battery ................. 44 receiving text message ........................... 197 power source........................................................................................ 61 in Trace Info.......................... 84 prefix. 162 resetting fiber parameters....... 276 specifications .... 236 S safety caution............. 80 in Trace Info.............. laser............................................. 92 selection. ........................... 122 Automatic OTDR test wavelength .................................................... 25 FTB-200 ....... see application source accessing ................................ 70......... 227 setting wavelength ..................................... 227............................ 92 292 FTB-200 ..... naming ............................................................. 74 storage requirements ............. 141 span start description.... 181........... 228 thresholds.............................................. 211................................................................................................... 279 service centers .............................. 230 signal-to-noise ratio ............................................................ 228 multimode....................................................... 73 reference trace..... 142 symbols................. 227 software........ 141 specifications................ 279 shutdown cold vs............................................................ 40 source wavelength................ 101 test wavelength........................ 228....... 235 port..... 232 service and repairs................... updating . 275........ 88... 234 ending communication .................... 276 temperature for storage ......................................... 165 high-power....... 86 start-up option ........ 249 storing changing default trace name ........................................... 181 modulating signal.......................... in Trace Info.................. 109 selecting active trace ... 67................................... modulating ............................................ 236 establishing communication ........... 229..... 8 system under test......................Index results automatically............................................. 169 effect of setting on events table ........................................... 275....... 165 activating.......................... 236 technical specifications................................. safety ...... see DUT T talk set compatibility....... 50... 81 singlemode port.............................. 65 trace autonaming .............................. 227 source see also laser span end description.............................................. 162 swapping traces ..................................................... 67........... 181 operating............................ 129..... 184 trace in different formats. 214 signal..................................... 228 singlemode ........... 165 operation and display ......................... 141 span position.......... 281 technical support........................ 189 shipping to EXFO .............................. 73 sending text message.......... 88 pass/fail thresholds ..................................... 234 placing a call... 25 side-by-side referencing method ....... 197 power thresholds (power meter) ..... 65 suffix........ 67....................... 280 setting fiber span .............. tab ......................................................................... 227.............. 228 function overview ....... 136 threshold .............................................. 76 wavelength in Auto mode .................. 187 summarized report .............................. warm ........... 281 splice loss average...................................... 169 effect of setting on events table ... 234 receiving a call .................................. 236 voice and ring volumes .. automatically.......... 38 reference values.... 86 power reference .. 88........................................... 94 acquiring traces .. 234 description.............................. 249 Template mode acquiring the reference trace .................................... 95 applying parameters to other traces .................... 181 status........ 128 detection threshold............ product ............. 32 stopping trace acquisition .............................. 155 scroll buttons ........................... ..................................................... 116 trace formats.................. 142 trace display behavior on zoom....................................... 109 displaying file name ... 136 autonaming ................. 189 analysis detection .......................................................................... tab ....... custom values................. 232 theory........... 65 color in trace display ............................ power meter ................................. 86 pass........................ 65 changing default name................................................ 94 restrictions.............................................. 87 fiber section attenuation ....... 234 visual fault locator ................................................................................... 142 re-analyzing ................. 70..................... 38 reflectance detection ................ 233 sending.............. 129 end-of-fiber detection ........... 232 receiving ........ 92 test settings used.................. 73 Auto mode .. 229 see also test tools total loss in Trace Info... 129 Compact Modular Platform 293 ..................................................................................... 94 reference trace naming..... in different formats ................................................... 231 description............. 128 time............................................................................................ 129.................... 109 export formats ...................................................... 91 text messages compatibility............ 95 analysis ........................................................ warning ............... 27 trace accuracy.................... fail.............................................................. 155 swapping ................................................................... 86 Time dial custom-time mode........ 155 opening file. 128 touchscreen calibration .................................................................. 136 trace analysis ..................................................................................................... 105 tools talk set ............................................ 87 power ..............................Index description.. 91 Template OTDR........................... OTDR.................. 193 test wavelength...... 84 acquisition in Advanced mode .......... 87 pass/fail message .... 107 pass/fail analysis threshold........... 128 backscatter ......... 69 acquisition in Template mode. 182............ 136 setting pass/fail....................... 86 splice loss detection................................. 105 setting ..... 92 testing ....................... 67 Template mode................................ 136 connector loss ..... 125 clearing traces.. settings used in Template mode.... 74 storage.......................................................... 101 setting parameters.. 203 power meter...................... 139 analysis detection thresholds ...................... 38 splice loss .............................. 80 time in Trace Info............................................ 155 Trace Info..................................... 86 setting........................................................................................................................................................................ 136 fault notification................................................................................... 73 acquisition in Auto mode...... 92 selecting reference trace................. 76 test.................................................... 92 testing Advanced mode....................................... 91 naming the reference trace................ 231 modifying ..................................... forced selection...... tab ............ 123 description ...... 67.................. 86 purpose of swapping ........ tab average loss ............. 116 parameters.... 139 stopping the acquisition ........... FTB-200 .............. 227 ORL meter............................... 128 average splice loss................ 129............................ see Template mode test tools light source..... 182............ 60 thresholds ........... 110 compatibility between ToolBox versions156 editing buttons .................................................... 86 detection ......... .................................. 124 window display........................... 12 repairing ................................................................. 141 using light source.... 128 wavelength.................................. 150 measurement method........... 277 liability ............ tab ........................................................................ 150 measurement method vs....................... 162 transferring data ............................................ 267 units of measurement ....................... 229..................... 50.................................. 12 ventilation .......... 12 unit recalibration.............. 277 wavelength indication in Trace Info........ 125 resetting automatically ........................... LSA ......................... 128 reflectance threshold ................................... 129 fiber type used. 236 W warm shutdown ... 230 operation and display .......................... 112 of event ....................... 196 zoom controls.................................................... 168 modulating signal ..................................................... 128 selecting...... 134 unit installing............................. 112 typical applications ............................................... 128 trace report creating ............................. 121 IOR ............................................................ in Auto mode ...... 50.......................... 165 Z zero measurement.................................................................................................... 212 list of favorite......................................................... 278 null and void........................ 182 transportation requirements . 181 FasTesT. see VFL voice volume ................ 116 294 FTB-200 ............................................... 278 general.... 229 using............................ 205 zero-power reference ...................Index displaying traces . 87 warranty certification................................. 230 performing a test ....................................................... 228 U undeletable events ............................................... 129 pulse.................... 165 visual fault locator.............................................. 183 updating span position .............. 121 end-of-fiber threshold ....... 73 wavelengths calibrated.. 159 printing ......... 236 volumes (ring and voice) ....................................................................................................................................................................................................... 129 span length ................................................................. 128 helix factor.................................. 128 splice loss threshold......... definition . 181................................. 230 status ....... 182 V ventilation .................................................... 25 warning thresholds.................................. 37............ 129 hiding traces.................. 50.......... 150 type in events table .......... 67.......................... 194 source ...................... ORL ........................................ 249.............................. 129 time ............................. 12 VFL 1 Hz pulsed output ........ 278 exclusions ...................... 168 continuous wave output ............................................................. 276 two-point attenuation....................... 128 total loss........................................ 1.exfo.40.P/N:1043882 www.: 1 418 683-0211 · Fax: 1 418 683-2170 Plano TX.: +65 6333 8241 · Fax: +65 6333 8242 1 800 663-3936 EXFO ASIA-PACIFIC 151 Chin Swee Road #03-29.: +33. All rights reserved.85 · Fax: +33.42 SINGAPORE 169876 Tel.83.com · info@exfo. rue Andras Beck Quebec (Quebec) G1M 2K2 CANADA Tel.40.04.com CORPORATE HEADQUARTERS EXFO AMERICA EXFO EUROPE 400 Godin Avenue 3701 Plano Parkway. Manhattan House TOLL-FREE (USA and Canada) © 2006 EXFO Electro-Optical Engineering Inc.83. Suite 160 Le Dynasteur 10/12. 75075 USA Tel. Printed in Canada (2006-05) .1.: 1 972 907-1505 · 92366 Meudon la Forêt Cedex FRANCE Tel.85.