InternalOTC304101 OptiX Metro 6100 Hardware Description ISSUE 1.1 www.huawei.com HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Course Objectives Upon completion of this course, you will be able to: Describe the network applications of the OptiX Metro 6100 equipment. Explain the system structure and features of OptiX Metro 6100 equipment. State the main functions of the cards in the OptiX Metro 6100 equipment. Outline the system protection modes of OptiX Metro 6100 equipment. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 2 System Overview Cabinet and subrack Cards Protection of equipment HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 3 Position of OptiX Metro 6100 Metro Core/Regional Network: Metro6100 Provides DWDM/CWDM Ring, Line, Mesh Branch office A Enterprise group Branch office B Branch office C Voice Data/Internet/Video Leased lines Fiber Channel GE and 10GE LAN Extension Metro 6100 SDH/PDH FC IP/ATM/Video FC FC Enterprise group ISP/ICP HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 4 Metro 6040 OptiX Metro 6100 for Metro core Metro WDM Networking Very large capacity Multi-service access and TMUX function SDH/SONET Abundant protection mechanisms ATM Modular OADM design and scalability Transport PDH clock source for timing Metro WDM Support 40 wavelengths DWDM(G.694.1) Support 16 wavelengths CWDM(G.694.2 and G.695 application Video ESCON/FICON Fiber Channel HUAWEI TECHNOLOGIES CO., LTD. …….. Ethernet All rights reserved Page 5 System Overview Cabinet and subrack Cards Protection of equipment HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 6 Hardware Overview OptiX Metro 6100 system: cabinets sub-racks OADM frames DCM frames fiber-spooling frames boards Cabinet •Dimension : 2.2×0.6×0.3m(H×W×D) 2.6×0.6×0.3m(H×W×D) •A single cabinet accommodates: 3 sub-racks ETSI300/600,19" or 23"frames HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 7 Metro 6100 System Architecture Metro 6100 Main shelf (Subrack) 1 2 •Dimension: 3 625mm(H) x 440mm(W) x 290mm (D) 1 to 3 shelves housed in one rack 4 1. Interface area 2. DC power filter board (DPFU) 3. Air baffle 5. Board area 6. Cover of optical attenuator area 7. Fan tray assembl y 4. Cover of air exhaust vent 8. Air filter 10. Rackmountin g ear 5 6 7 8 9. Fiber spool 10 9 Filter Shelf •Dimension : 86.1×440×290mm(H×W×D) HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 8 Sub-rack Interface Area 1. Clock interface (6) 2. OAM interface 3. ALM interface 4. Subrack power cable interface 5. Subrack power switch 6. Orderwire phone interface 7. ETHERNET interface 8. OCTL interface 9. HUB power output interface HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 9 Metro6100 Cabinet Layout IU15 IU16 IU17 IU18 IU19 IU20 CONNECTION PANEL IU21 IU22 OADM Site Power Distribution & alarm Unit Passive Filter shelf Optical Add/Drop Unit Interconnect Cables 12 Universal Interface Slots: OTU/OADM/OA Compatible OTM Site Power Distribution & alarm Unit I U 7 Two -48 V DC inputs for mutual backup EFI I U PPFU # I U # I U # I U # 1 2 3 4 I U # I U # 5 6 Shelf I U 7 PPFU I S U I I U U board C 7 C # # 8 9 I U # I U area# 1 0 1 1 I U # 1 2 Attenuator area Fan Units Dust Filter I U P # M 1 U 3 I U 7 Main shelf I U 7 DCM Holder DCM Holder HUB Holder HUB Holder System control and communication slot HUAWEI TECHNOLOGIES CO., LTD. Sub-rack Interconnection All rights reserved Page 10 System Overview Cabinet and subrack Cards Protection of equipment HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 11 Metro 6100 Cards Function Units Cards Optical transponder unit LWF, LRF, LBE, TMX, TMR, LWC, TRC, LWM, LWMR, LWX, LWXR, LQG, LDG, LQS, EC8, AP4, AP8, AS8 Optical multiplexer/de-multiplexer unit M40, V40, D40, FIU, EFIU, ACS Optical add/drop multiplexer unit MR2 Optical amplifier unit OAU, OBU, OPU Optical supervisory channel unit SC1, SC2, TC1, TC2 System control and communication unit SCC Optical protection unit OLP, SCS Auxiliary unit VOA, VA4, MCA, PMU HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 12 OTU Cards Introduction HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 13 Multi-service Access •SDH •SDH •PDH •PDH •FE •FE •GE •GE •10GbE •ATM OTU OCh OTU •10GbE •ATM •ESCON •ESCON •FICON •FICON •FC •FC •FDDI •FDDI •D1 Video •D1 Video HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 14 Basic Functions of OTU B1 （ B2 ） ,J0 monitoring ITU-TG.692 Performance/Alarm ITU-TG.694.1/2 ALS function ITU-TG.691 ITU-TG.957 ITU-T G.695 3R function ITU-TG.709 IEEE802 series FEC/AFEC SAN ESC function ATM Channel spacing OTU 850nm/1310nm /1550nm Client HUAWEI TECHNOLOGIES CO., LTD. (0.8nm or 20nm) WDM All rights reserved NRZ/Super WDM Page 15 Tunable OTU OTU Classification General OTU Combiner OTU 4xSTM-1/4/16 STM-1/4/16 LWM Arbitrary Bit Rate (34Mbit/s~2.7Gbit/s) LWX STM-16 LWC STM16FEC STM-64 LWF STM64FEC GE OTU 4xSTM-1/4/16 AS8 4×STM-16 TMX 2.5Gbps 2.5Gbps STM64FEC SAN OTU 2xGE LDG 2.5Gbps 10GbE LAN LBE STM64 4xGE LQS LQG 5Gbps HUAWEI TECHNOLOGIES CO., LTD. 8xESCON EC8 8xAny AP8 4xAny AP4 All rights reserved Page 16 2.5Gbps 2.5Gbps 2.5Gbps OTU Classification Regeneration OTU LRF STM-64 TMR STM64AFEC STM-16 TRC STM16FEC STM-1/4/16 Arbitrary rate HUAWEI TECHNOLOGIES CO., LTD. STM64FEC STM-64 LWMR LWXR All rights reserved Page 17 Diagram of General OTU Functional block diagram of LWF: Performance and alarm monitoring Client side STM-64 WDM side G.694.1 Optical transponder module STM-64 G.694.1 CPU Mailbox SCC board HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 18 OTU For Regeneration Functional block diagram of LRF/TMR/LWXR/LWMR/TRC: Performance and alarm monitoring WDM side WDM side Regenerating module CPU Mailbox SCCboard Note: Unidirectional OTUs: LRF, TMR, TRC Bi-directional OTUs: LWXR, LWMR HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 19 Port/Interface Description TMX RUN Tx ALM Rx1 OUT IN OUT Tx1 Client side DWDM side Rx2 Tx2 Rx IN Rx3 Tx3 Rx4 Tx4 HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 20 Indicator Description Category Alarm indicator (Red) Running indicator (Green) Flash State Description Off No alarm Three times every other second Critical alarm Twice every other second Major alarm Once every other second Minor alarm Five times per second Not in service Once every two seconds In service Once every four seconds The communication with SCC unit is interrupted, and is in off-line working state (2 seconds on and 2 seconds off) HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 21 Alarm Description Red indicator flashes Alarm category Loss of receive FEC frame Three times every other second Critical FEC-OOF Received FEC frame is out of frame Three times every other second Critical R-LOS Loss of signals at receiving end Three times every other second Critical IN-PWR-LOW Input power too low Twice every other second Major IN-PWR-HIGH Input power too high Twice every other second Major Alarm Description FEC-LOF HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 22 Board Category Board name Full name Width of front panel Slot (mm) LWF STM-64 transmit-receive line wavelength conversion unit with FEC function 32 IU1 – IU6, IU8 – IU13 LRF STM-64 line regenerating wavelength conversion unit with FEC function 32 IU1 – IU6, IU8 – IU13 LBE 10GE transceiver wavelength conversion board with FEC(LAN interface) 32 IU1 – IU6, IU8 – IU13 TMX 4-Channel STM-16 asynchronous MUX OTU-2 wavelength conversion board 64 IU1 – IU5, IU8 – IU12 TMR 10.71G line regenerating wavelength conversion board with AFEC and G.709 32 IU1 – IU6, IU8 – IU13 LWC STM-16 transmit-receive wavelength conversion unit 32 IU1 – IU6, IU8 – IU13 TRC STM-16 optical transmitting regenerator 32 IU1 – IU6, IU8 – IU13 LWM Multi-rate optical wavelength conversion board 32 IU1 – IU6, IU8 – IU13 LWMR Multi-rate optical wavelength conversion regenerating board 32 IU1 – IU6, IU8 – IU13 HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 23 Board Category Board name Full name Width of front panel Slot (mm) LWX Arbitrary bit rate wavelength conversion board 32 IU1 – IU6, IU8 – IU13 LWXR Arbitrary bit rate regenerating board 32 IU1 – IU6, IU8 – IU13 LQG 4 x GE multiplex optical wavelength conversion board 32 IU1 – IU5, IU9 – IU13 LDG 2 x Gigabit Ethernet unit 32 IU1 – IU6, IU8 – IU13 LQS 4 x STM-1/4 multiplex optical wavelength conversion board 32 IU1 – IU6, IU8 – IU13 EC8 8 x ESCON service convergence board 32 IU1 – IU6, IU8 – IU13 AP4 4-Channel protocol-independent service convergence board 32 IU1 – IU6, IU8 – IU13 AP8 8-Channel protocol-independent service convergence 32 HUAWEI TECHNOLOGIES CO., LTD. board All rights reserved Page 24 IU1 – IU6, IU8 – Features of the OTUs Cards LWF DWDM side Client side FEC Data rate Service type function 10.71G STM-64 FEC Protection 1+1 inter-board SuperWDM NO 1:N LDG STM-16 2*GE (850nm/1310nm) NO 1+1 NO LQG 5G 4*GE (850nm/1310nm) NO 1+1,WXCP( wavelen gth cross-connection protection) NO LBE 10.71G 10GE(10.31G) FEC 1+1 inter-board NO 1:N LWC 2.67G STM-16 HUAWEI TECHNOLOGIES CO., LTD. FEC All rights reserved 1+1 inter-board Page 25 NO Features of the OTUs Card s DWDM side Client side FEC Data rate Service type function LWX 34 Mbit/s–2.7Gbit/s 34 Mbit/s–2.7 Gbit/s at 850 nm and 1280–1565 nm NO 1+1 NO LWM STM-1/OC-3, STM4/OC-12 or STM16/OC-48 STM-1/OC-3, STM-4/OC-12 or STM-16/OC-48 NO 1+1 NO LGS STM-16 one GE and one STM-4/STM-1 NO 1+1 NO LQS STM-16 4 STM-1/STM4 NO 1+1 NO TMX 10.71 VC-4/STS-3 concatenated service or 4*SDH/SONET service AFEC 1+1 interboard NO EC8 STM-16 8*ESCON (200M) NO 1+1 NO AP4 STM-16 200M--1.2G(such as ESCON, FICON,FC, DVB-ASI) NO 1+1 NO HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Protection Page 26 SuperWDM MUX/DEMUX Cards Introduction HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 27 Board Category Board name Full name Width of front panel Slot (mm) M40 40-channel multiplexing board 64 IU2 – IU6, IU9– IU13 V40 40-channel multiplexing board with VOA 64 IU2– IU6, IU9 – IU13 D40 40-channel demultiplexing board 64 IU2 – IU5, IU9 – IU13 FIU Fiber interface unit 32 IU1 – IU6, IU8 – IU13 EFIU External fiber line interface board 24 OADM frame: IU15 – IU22 ACS OADM access board 24 OADM frame: IU15 – IU22 MR2 2-Channel add/drop unit 24 OADM frame: IU15 – IU22 HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 28 MUX/DEMUX Category D40 M40 MON 40x M40 Main Channel MON OUT IN RUN RUN ALM ALM 1 2 3 5 6 7 11 12 13 1 4 8 9 10 14 15 16 17 18 19 20 21 22 23 25 26 27 28 24 29 30 35 36 31 32 37 38 33 34 39 40 2 3 5 6 7 11 12 13 4 8 9 10 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 33 34 35 36 39 40 37 32 38 Main Channel D40/ V40 Note: channel space is100 GHz, online monitoring port “MON” is provided. Support optical power detecting and support alarm and performance event reporting. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 29 40x Diagrams of MUX/DEMUX Functional block diagram of M40/D40/V40 Single channel signals input Optical multiplexer Optical splitter OUT MON CPU Mailbox IN MON Optical splitter Optical demultiplexer SCC board CPU Mailbox SCC board HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 30 Single channel signalsoutput MUX Alarms Alarm category Alarm Description Causes Red indicator flashes MUT-LOS Loss of multiplex signal 1. Output optical power detecting circuit is faulty or board failed Three times every other second Critical 2. or too high line attenuation BD-STATUS Board is not in the position No board in slot, board mailbox faulty or board is not properly inserted Twice every other second Major SUM-OUTPWR-HI Output optical power of main path is too high Too high output optical power Twice every other second Major SUM-OUTPWR-LOW Output optical power of main path is too low Too low output input optical power Twice every other second Major FPGA-ABN FPGA status is abnormal 1. Main FPGA is not present when board is started Twice every other second Major Once every other second Minor 2. Main FPGA loading fail TEMP-ALARM Temperature alarm HUAWEI TECHNOLOGIES CO., LTD. Ambient temperature crosses threshold All rights reserved Page 31 MUX/DEMUX Category FIU: Fiber interface unit TM TC Supervisory channel Line signal WDM IN Main path Main path FIU RC RM WDM Splitter Line signal Supervisory channel OUT MON Realize multiplexing and demultiplexing of the main path and the optical supervisory channel. Online monitoring EFIU is similar as FIU except different size. ACS: OADM access board BD1 BD2 BD3 ACS BA1 BA2 BA3 Demultiplexing optical module IN Multiplexing optical module OUT Divides the coming signals into three groups, the number of wavelengths in each group is different. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 32 MUX/DEMUX Category MR2: 2-channel add/drop unit MR2 R2 M n ti o ec nn co D1 D2 A1 A2 HUAWEI TECHNOLOGIES CO., LTD. MI MO OADM optical module All rights reserved Page 33 IN OUT Indicator Description of MUX/DEMUX Category Alarm indicator (Red) Running indicator (Green) Flash State Description Off No alarm Three times every other second Critical alarm Twice every other second Major alarm Once every other second Minor alarm Five times per second Not in service Once every two seconds In service Once every four seconds The communication with SCC unit is interrupted, and is in off-line working state (2 seconds on and 2 seconds off) HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 34 OA Cards Introduction HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 35 OA Application OA OA OTU OTU OBU/OAU OPU/OAU OAU OA: OAU, OBU,OPU (EDFA amplifiers) HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 36 OA Category Board Full name Width of front panel name Slot (mm) OAU-C01 OAU Optical amplifier unit OAU-C02 64 IU1–IU5, IU8–IU12 OAU-C03 OBU-C01 OBU Optical booster board 32 IU1–IU6, IU8–IU13 OBU-C03 64 IU1–IU5, IU8–IU12 OPU-C01 OPU Optical preamplifier board HUAWEI TECHNOLOGIES CO., LTD. OPU-C02 All rights reserved 32 Page 37 IU1–IU6, IU8–IU13 OAU/OPU/OBU Unit IN OUT IN OAU OAU EDFA optical module CPU RUN MON Mailbox ALM IN OUT Diagram SCC board TDC RDC MON OAU/OPU/OBU •40 channel optical signals (with channel spacing 100 GHz) may be amplified simultaneously. •Typical gain is different from each other. •With small noise figure. •Gain lock function is available. •Performance monitoring of pumps. •Support online spectrum analysis through “MON”. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 38 OUT MON Specifications of OAU/OPU/OBU Type Gain (dB) Minimum input optical power (dBm) Maximum output Width of front optical power (dBm) panel (nm) OAU-C01 20 – 33 -32 20 64 OAU-C02 20 – 33 -32 17 64 OAU-C03 26 – 32 -32 20 64 OBU-C01 23 -32 17 32 OBU-C02 23 -22 20 64 OPU-C01 20 -32 14 32 OPU-C02 20 -32 14 32 HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 39 Amplifiers alarms Alarm Description Causes MUL-LOS Loss of multiplex signals 1. Output optical power detecting circuit is faulty or board failed Red indicator flashes Alarm category Three times every other second Critical Three times every other second Critical Twice every other second Major Twice every other second Major 2. Fiber is not connected or the connection is poor OA-LOW-GAIN The gain of optical amplifier is lower 1. Pump laser is aged 2. Input optical power is too high 3. A/D detect circuit failed IN-PWR-LOW Input optical power is too low 1. Input power is too low, maybe the too big attenuation is added 2. Line attenuation is too large PUMP-TEMPALM Pump temperature crosses threshold 1. Environmental temperature is high 2. Laser cooling equipment is faulty HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 40 OSC/SCC Card Introduction HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 41 SC1/2 and TC1/2 SC1 SCC board RM Optical receiving module Overhead processing module Optical transmitting module TC2 SC2 RUN RUN ALM ALM 3 E1 clock service ALM TM CPU TM RM TM1 RM1 2Mbit/s or 2MHz interface TM2 RM2 Mailbox SCC board SC1/2: Unidirectional/Bi-directional optical supervisory channel unit TC1/2: Unidirectional/Bi-directional optical supervisory channel and timing transmission unit SC1/TC1 could be used in OTM site, and SC2/TC2 could be used in OLA or OADM site. Be inserted in slots: IU6, IU8 HUAWEI TECHNOLOGIES CO., LTD. RUN All rights reserved Page 42 TM1 RM1 TM2 RM2 SC1/SC2 Alarms Alarm Description Causes R-LOS Loss of signals at receiving end 1. The optical fiber is broken 2. The attenuation of optical path is too high Alarm indicator flashes Alarm category Three times every other second Critical 3. Fault occurs in the transmitting part of remote end R-LOF Loss of frame at receiving end Input optical power is too low or excessive bit errors. Three times every other second Critical NO-BD-SOFT No board software Software is not loaded on the board Three times every other second Critical IN-PWR-LOW Input power too low 1. Input optical power is too low Twice every other second Major Major 2. Proper attenuation is not added Twice every other second 2. The attenuation is too large IN-PWR-HIGH Input power too high 1. Input optical power is too high OUT-PWRHIGH Output power too high Optical transmitting module fault or wrong optical module parameters setting Twice every other second Major OUT-PWRLOW Output power too low Optical transmitting module fault or wrong optical module parameters setting Twice every other second Major LOOP-ALARM Indication of loop in operation 1. Loop command is in execution for the sake of media testing Once every other second Minor 2. Auto-execution of loop by board for testing HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 43 System Control and Communication Unit IU7 Optical supervisory boards DCC interface SCC RUN NM ALM Date communication interface CPU Overhead access module ETN Resettin g RST ALC Alarm switch Mailbox Other boards Communicate with other boards of NE, implement board configurations and collection of board performance and alarms. Support ECC communication with NEs for network management. ALC switch for cutoff the audio alarms and RST button for hardware reset. ID is embedded. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 44 SCC Alarms Alarme Description Alarm indicator flashes Catégorie d’Alarme NESTATE-INSTALL NE installation 3 times/s Critique FAN-FAIL Fan abnormal 2 times/s Majeur POWER-FAIL Problem wit power 2 times/s Majeur CFGVERIFY Configuration n 2 times/s Majeur BD-STATUS Board in bad slot 2 times/s Majeur TEMP-ALARM Temperature higher than threshold 1time/s Mineur HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 45 Auxiliary Card Introduction HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 46 VOA: Variable optical attenuator VOA IN Variable optical attenuator OUT RUN ALM CPU IN Mailbox SCC board Adjust the optical power of one optical signal according to the control command sent by the SCC. Monitor the optical power and attenuation, reports alarms. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 47 OUT VA4: 4-Channel variable optical attenuator IN OUT IN OUT IN OUT IN OUT Variable optical attenuator VA4 Variable optical attenuator Variable optical attenuator RUN CPU ALM IN1 OUT1 Variable optical attenuator IN2 OUT2 Mailbox IN3 OUT3 SCC board IN4 OUT4 Adjust the optical power of four optical signals respectively according to the control command sent by the SCC. Monitors the optical power and the attenuation, and reports alarms. The range of variable attenuation is 2 dB – 25 dB, and resolution is 0.1 dB. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 48 MCA: Multi-channel spectrum analyzer unit MCA-4/ MCA-8 supports spectral analysis for four/eight channels of signals. MCA RUN ALM Supervise and report the optical power, central wavelength, signal-to-noise ratio and number of channels. R01 R02 R03 R04 R05 R06 Monitor and analyze optical channel status and report alarms. One MCA occupies two slots and can be inserted in slots: R07 R08 IU2 – IU6, IU9 – IU13. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 49 PMU Card Interface Function F&f Management serial interface for external equipment, bearing features of RS-232 interfaces. Serial 1/2 Use F2/F3 bytes of the supervisory channel and provide features of RS-232 and RS422 interfaces. The maximum rate is 19.2 kbit/s. F1 Co-directional 64 kbit/s data interface. LAMP1/LAMP2 Used for concatenating equipment alarms among subracks and outputting alarm driving signals to cabinet indicators. ETH Ethernet communication interface, realizing communication between boards in the subrack and external equipment. RJ45 •Monitor the voltage of two power supplies of the subrack, and report overvoltage and under-voltage alarms and detected voltage value to SCC board. •Input 16 external alarms & output 4 alarms to DC power distribution cabinet or the centralized alarm control equipment. •Monitor board temperature, and report performance and alarms to SCC. •Provide 5 V DC power supply for the OADM frame. •Provide audio alarm and alarm test switch. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 50 Summary for Cards Optical Transponder Unit (OTU) Optical Multiplex/De-multiplex/add/drop Unit (MUX / DEMUX) Optical Amplifier Unit (OA) Optical supervisory Channel Unit (OSC) System Control and Communication Unit (SCC) Auxiliary Unit HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 51 System Overview Cabinet and subrack Cards Protection of equipment HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 52 OLP: Optical Line Protection Working channel RO Signal selection module Protection channel Working channel TI Optical splitter Protection channel RI1 RI2 TO1 TO2 Provide optical line protection, to guarantee that service can be normally received if there is some line fault. The protection mode is dual-fed and signal selection and single-end switching. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 53 Optical Line Protection Station A Working channel TI O L P O T M Station C TO1 RI1 TO2 RI2 RI1 TO1 RO O L P TI RO RI2 TO2 Protection channel HUAWEI TECHNOLOGIES CO., LTD. O L A or O A D M Station B Working channel O L P All rights reserved O L P Protectection channel Page 54 O T M SCS: Sync optical channel separator RO1 Optical coupler RI11 RI12 SCS RUN TI1 Optical splitter TO11 TO12 ALM TO11 RI11 TO21 RI21 RO2 Optical coupler TI2 Optical splitter TO12 RI12 RI21 RI22 TO21 TO22 TO22 RI22 TI1 RO1 Used as coupler for OTU accessing when optical channel protection is used. TI2 RO2 Implement optical channel protection of different routes. Meanwhile, SCS board supports OTU board level protection of the same route. No need the support of protocol. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 55 Optical Channel Protection SCS RO1 TI1 RI11 Optical coupler Optical splitter RI12 TO11 Working channel TO11 Working OTU Working OTU Protection OTU Protection OTU TO12 Portection channel Site A TO12 RI11 RI12 Site B Two OTU cards are available. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 56 SCS Optical splitter Optical coupler TI1 RO1 Optical Channel Protection Protection channel LWX Working channel RUN ALM OTU RX TX OUT1 OUT2 OTU with concurrent sending and selective receiving IN1 IN2 One OTU card sends a single wavelength to two directions and selects from two directions. HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 57 Summary System Overview Cabinet and subrack Cards Protection of equipment HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 58 Thank You www.huawei.com
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