FPMA_Nokia Flexi WCDMA Base Station

471449ANokia Flexi WCDMA Base Station Maintaining the Stand-alone Base Station DN7037846 Issue 1 en # Nokia Corporation 1 (31) Maintaining the Stand-alone Base Station The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This document is intended for the use of Nokia's customers only for the purposes of the agreement under which the document is submitted, and no part of it may be reproduced or transmitted in any form or means without the prior written permission of Nokia. The document has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia welcomes customer comments as part of the process of continuous development and improvement of the documentation. The information or statements given in this document concerning the suitability, capacity, or performance of the mentioned hardware or software products cannot be considered binding but shall be defined in the agreement made between Nokia and the customer. However, Nokia has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia will, if necessary, explain issues which may not be covered by the document. Nokia's liability for any errors in the document is limited to the documentary correction of errors. NOKIA WILL NOT BE RESPONSIBLE IN ANY EVENT FOR ERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCIDENTAL OR CONSEQUENTIAL (INCLUDING MONETARY LOSSES), that might arise from the use of this document or the information in it. This document and the product it describes are considered protected by copyright according to the applicable laws. NOKIA logo is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective companies, and they are mentioned for identification purposes only. Copyright © Nokia Corporation 2006. All rights reserved. 2 (31) # Nokia Corporation DN7037846 Issue 1 en Contents Contents Contents 3 1 Performing routine maintenance tasks 5 2 2.1 2.2 Replacing module fans 7 Replacing module fans from the back 7 Replacing module fans from the front 9 3 3.1 3.2 3.3 3.4 3.4.1 3.4.2 Replacing modules 13 Replacing RF Module 13 Replacing System Module 16 Replacing transmission sub-module 19 Replacing FPMA power sub-modules 22 Replacing AC/DC sub-module FPAA 22 Replacing battery sub-modules FPBA 27 DN7037846 Issue 1 en # Nokia Corporation 3 (31) Maintaining the Stand-alone Base Station 4 (31) # Nokia Corporation DN7037846 Issue 1 en . Keep the BTS environment clean of dust. 3. DN7037846 Issue 1 en # Nokia Corporation 5 (31) . Check the connector seals. clean the fans of leaves and debris and free air inlets and outlets of obstructions to maintain proper air circulation and prevent overheating of the BTS.Performing routine maintenance tasks 1 Performing routine maintenance tasks Purpose Perform these steps during normal site visits to ensure that the base station stays in good condition. When needed. Check the fans and air circulation. Check the connector seals visually. Check the screws. Check the cable connectors. Replace all damaged or missing screws. 2. 4. Replace worn or broken seals. Check the tightness of the module fixing screws. Steps 1. Maintaining the Stand-alone Base Station 6 (31) # Nokia Corporation DN7037846 Issue 1 en . Do not touch the rotating fans. the fans can also be replaced from the front. it must be replaced with a new one.Replacing module fans 2 Replacing module fans 2. Replace a faulty unit as soon as possible. Before you start Warning Risk of personal injury. Caution The modules may be damaged if operated for a long time in the upper ambient temperature range. If there is not enough space for replacing the fans from the back. See Replacing module fans from the front for more detailed instructions. Replacing the fan from the back of the module requires a back access and the minimum 200 mm maintenance space behind the BTS. DN7037846 Issue 1 en # Nokia Corporation 7 (31) .1 Replacing module fans from the back Purpose If a module fan fails. Replacing module fan from the back Steps 1. Tip It is also possible to replace the fans during operation. 2. however. # Nokia Corporation DN7037846 Issue 1 en . it has to be done as quickly as possible as otherwise the module will shut down due to overheating. Shut down the module. 8 (31) Connect the ESD wrist strap on the plinth.Maintaining the Stand-alone Base Station Summary 3 4 6 5 DN7037822 Figure 1. 2 3. Before you start Caution The modules may be damaged if operated for a long time in the upper ambient temperature range. Replacing the fan from the back of the module requires a back access and the minimum 200 mm maintenance space behind the BTS. 4. Remove the fan plate. 6. The module core can be pulled out without dismounting the module stack. Disconnect the fan cables. Replace a faulty unit as soon as possible. the modules can be replaced from the front of the base station by pulling out the module core. Replacing module fans from the front Purpose If a module fan fails. If the required space is not available. it must be replaced with a new one. 5. 7. Reinstall the module back cover. Summary DN7037846 Issue 1 en # Nokia Corporation 9 (31) .Replacing module fans 2. Detach the module back cover. Install the new fan plate and connect the fan cable. 8. Detach the screws and the fan plate from the module core. Maintaining the Stand-alone Base Station 4 5 Loosen the screws 6 7 3 11 8 7 10 9 12 DN7089078 Figure 2. 10 (31) Replacing module fan from the front # Nokia Corporation DN7037846 Issue 1 en . Reroute and coil up the cabling. 9. If you are replacing an RF Module fan Then See Replacing RF Module for instructions how to remove the module core from the casing. 7. Detach the screws and the fans from the module core. 8. Connect the fan cable. Install cable entries. 16.Replacing module fans Steps 1. 6. 10. 11. Connect the cables to the module front panel. 4. Fix the core to the casing with screws. Disconnect the module front panel cables. 13. Remove the fan plate. 2. 5. # Nokia Corporation 11 (31) . 3. Tighten the screws to 5 Nm. Disconnect the fan cables. 12. Loosen the cable entry screws and remove the cable entries. Pull out the module core from the casing. 15. Install the new fan plate. DN7037846 Issue 1 en 14. Insert the core in the module casing. If you are replacing a System Module fan Then See Replacing System Module for instructions how to remove the module core from the casing. Detach module fixing screws. Maintaining the Stand-alone Base Station 12 (31) # Nokia Corporation DN7037846 Issue 1 en . Replacing modules 3 Replacing modules 3. Before you start The RF Module core can be replaced without shutting down the BTS.1 Replacing RF Module Purpose If an RF Module fails and you have done troubleshooting. The module core can be replaced without dismounting the module stack. the RF Module core must be replaced with a new one. Summary DN7037846 Issue 1 en # Nokia Corporation 13 (31) . the System Module and the remaining RF Modules remain functional during the operation. Maintaining the Stand-alone Base Station 8 9 Loosen the screws 5 10 6 13 Tighten the screws 12 11 15 DN7037776 Figure 3. 14 (31) Replacing RF Module # Nokia Corporation DN7037846 Issue 1 en . Disconnect the rest of the cables on the RF Module front panel.Replacing modules Steps 1. Keep the optical cable connectors clean. 4. 15. 13. Take care when lifting the module. Install the optical transceiver to the RF Module. 6. DN7037846 Issue 1 en 11. Disconnect the internal power cable on the RF Module front panel. 12. # Nokia Corporation 15 (31) . Pull out the module core from the casing. if any. Connect the cables to the RF Module front panel as instructed in the Cabling the BTS and Creating Configurations document. 8. 7. Run down the faulty RF Module with Nokia WCDMA BTS Site Manager. Detach the module fixing screws. Insert the new core in the module casing. Install the cable entries and tighten the screws. 2. Connect the ESD wrist strap to your wrist and then to the plinth. 14. Fix the core to the casing with screws and tighten to 5 Nm. 3. Switch off the faulty RF Module fuse on the FPFA. Warning The module is heavy. 9. 5. Pull aside all the cabling routed in front of the RF Module to be replaced. Loosen the screws and remove the module front panel cover (if installed). Loosen the cable entry screws and remove the cable entries. 10. The module core can be replaced without dismounting the module stack. b. c.Maintaining the Stand-alone Base Station a. Push the connector seals firmly in place. 18. Summary 16 (31) # Nokia Corporation DN7037846 Issue 1 en . Connect the optical cable. Coil up and reroute the cabling. 17. Switch on the RF Module fuse on the System Module front panel. Replacing System Module Purpose If the System Module fails. the module core must be replaced with a new one. 16. Connect the internal power cable. 3. Before you start The BTS must be shut down when the System Module is replaced.2 Connect the antenna cables. 19. Commission the BTS with Nokia WCDMA BTS Site Manager. DN7037846 Issue 1 en Replacing System Module # Nokia Corporation 17 (31) .Replacing modules 7 Loosen the screws 8 10 6 9 16 Tighten the screws 15 18 12 13 14 DN7038042 Figure 4. 8. Disconnect the power cable. 3. Connect the cables to the System Module front panel. 18. 13. Uninstall the transmission sub-module. 9. Pull the module core out of the casing. 16. Insert the new core in the module casing. 19.Maintaining the Stand-alone Base Station Steps 1. Install the optical transceivers to the System Module. 15. 10. Disconnect the cables in the System Module front panel. Connect the ESD wrist strap on the plinth. Connect the power cable to the System Module (FPFA) of the new module core. 18 (31) 14. If you have the front panel cover installed Then loosen the screws and remove the module front panel cover. Loosen the cable entry screws and remove the cable entries. Run down the BTS with the Nokia WCDMA BTS Site Manager. Detach the module fixing screws. Fix the core to the casing with screws and tighten to 5 Nm. Reroute and coil up the cabling. Install the cable entries and tighten the screws. 12. Disconnect the DC power mains breaker. 11. 2. 6. 7. Shut down the BTS by pulling out the four fuses on the RF Module. Install the transmission sub-module to the new module core. 17. 4. 5. Check that the polarity is correct. # Nokia Corporation DN7037846 Issue 1 en . Replacing transmission sub-module Purpose If the transmission sub-module fails. Restart and commission the BTS. or the transmission configuration changes. the sub-module needs to be replaced with a new one.3 20. 21. Switch the site mains breaker on. Before you start The BTS must be shut down when the System Module is replaced. Summary DN7037846 Issue 1 en # Nokia Corporation 19 (31) .Replacing modules 3. Push the connector seals firmly in place. 22. 20 (31) Replacing transmission sub-module # Nokia Corporation DN7037846 Issue 1 en .Maintaining the Stand-alone Base Station 8 Loosen the screws 9 11 6 10 17 14 Tighten the screws 16 12 16 15 12 check that the connector is straight DN7089081 Figure 5. Fix the transmission sub-module with 4 x M5 screws. Disconnect the DC power mains breaker. 9. 18. Shut down the BTS by pulling out the four fuses on the RF Module. 5. Pull out the module core from the casing. 16. 4. 13. Disconnect the transmission cables. 19.Replacing modules Steps 1. Fix the core to the casing with screws. 14. Push the connector seals firmly in place. Align the new transmission sub-module with the two guide pins in the System Module. Tighten to 5 Nm. 7. 17. DN7037846 Issue 1 en 6. Loosen the 4 x M5 screws and detach the transmission sub-module. If you have the front panel cover installed Then loosen the screws and remove the module front panel cover. 10. Connect the ESD wrist strap on the plinth. 12. Insert the module core inside the module casing. 3. Re-connect the disconnected cables to the System Module front panel (if needed). 8. 15. Loosen the cable entry screws and remove the cable entries. 11. Check that the FCM-FTM connection card on the System Module is straight. Disconnect the cables on the System Module front panel (if needed). # Nokia Corporation 21 (31) . 2. Run down the BTS with Nokia WCDMA BTS Site Manager. Detach the module fixing screws. Install cable entries and tighten the screws. and push the sub-module in place. Remove the FPMA module front cover.1 Replacing AC/DC sub-module FPAA Before you start It is recommended that power be switched off from the AC mains breaker. 22 (31) Pull out the AC terminal plate. However.4. there can still be hazardous voltage in case batteries are used. Switch on the mains power.Maintaining the Stand-alone Base Station 20. 2. # Nokia Corporation DN7037846 Issue 1 en . 3. Restart and reconfigure the BTS. 21. Remove the ingress protection plate.4 Replacing FPMA power sub-modules 3. Switch off the power from the stand-by switch. Steps 1. 3. Loosen 3 Detach DN70142401 4. if used. 6 6 DN70142425 7. # Nokia Corporation 23 (31) . 6. Disconnect the AC cable of the faulty FPAA. DN7037846 Issue 1 en Disconnect the DC cable.Replacing modules 5 4 DN70142413 5. Disconnect the alarm cable. # Nokia Corporation DN7037846 Issue 1 en . 8 DN70142449 9.Maintaining the Stand-alone Base Station 7 DN70142437 8. 24 (31) Replace the FPAA with a new one. Remove the FPAA screws (2 pcs). Re-connect the cables. 11. # Nokia Corporation 25 (31) . a. DN7037846 Issue 1 en Re-connect the alarm cables. 11a DN70142476 b. Fix the screws. Re-connect the AC cables.Replacing modules 10 9 DN70142452 10. 26 (31) Re-install the ingress protection plate. Re-connect the DC cables. 11c DN70142491 Make sure that the LED is yellow at this point.Maintaining the Stand-alone Base Station 11b DN70142488 c. # Nokia Corporation DN7037846 Issue 1 en . 12. Make sure that the LED is stable green. In that case. 3. If there are any visible damages in the FPBA unit. DN7037846 Issue 1 en # Nokia Corporation 27 (31) .4.2 Install the FPMA module front cover. An opened package cannot be used any more. 14.Replacing modules Tighten 12 Fix the screw DN70142507 13. Turn on the unit by pushing the power switch for one second. An approved package can be ordered from the Nokia Service Center. Replacing battery sub-modules FPBA Before you start The FPBA is a Lithium-Ion battery and its transportation is classified as dangerous. contact the Nokia Service Center. Note The transportation of the FPBA unit must be done according to the international DGR regulations. Therefore only an approved brand-new UN class 9 package can be used for transportation of the FPBA unit. it cannot be transported at all. if used.Maintaining the Stand-alone Base Station Steps 1. Remove the FPMA module front cover. 3 DN70142776 28 (31) # Nokia Corporation DN7037846 Issue 1 en . Disconnect the alarm cable. 3. Switch off the power from the FPAA stand-by switch. 2. Disconnect the DC cable from the faulty FPBA. 2 DN70142764 4. Remove the FPBA screws (2 pcs).Replacing modules 5. Replace the FPBA with a new one. 6 5 DN70142822 DN7037846 Issue 1 en # Nokia Corporation 29 (31) . 4 DN70142791 6. Re-connect the cables. Re-connect the alarm cable.Maintaining the Stand-alone Base Station 7. 8. 7b DN70143003 30 (31) # Nokia Corporation DN7037846 Issue 1 en . Re-connect the DC cable. Fix the screws. a. 7a DN70142846 b. Once the FPBA is fully charged (approx. 9. # Nokia Corporation 31 (31) . Turn on the unit by pushing the power switch for one second. The LED is blinking slowly green as the FPBA goes into the charging mode. the LED is stable green.Replacing modules Make sure that the LED is yellow at this point. 8 hours). DN7037846 Issue 1 en Install the FPMA module front cover. 10.