Dn7037846 511 en Global PDF Online a4

Maintaining the Stand-alone FlexiWCDMA BTS

DN7037846Issue 5-1 en31/10/2008

# Nokia Siemens Networks 1 (104)

471449A.909Nokia Flexi WCDMA Base Station, Rel. FlexiWBTS4.0 and Flexi WBTS4.5, ProductDocumentation, v.5

The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmitted inany form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.

The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products are given as is and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues whichmay not be covered by the document.

Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUTNOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESSOPPORTUNITY OR DATA, THAT MAYARISE FROM THE USE OF THIS DOCUMENT OR THEINFORMATION IN IT.

This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.

The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark ofNokia Corporation. Siemens is a registered trademark of Siemens AG.

Other product names mentioned in this document may be trademarks of their respective owners,and they are mentioned for identification purposes only.

Copyright Nokia Siemens Networks 2008. All rights reserved.

2 (104) # Nokia Siemens Networks DN7037846Issue 5-1 en31/10/2008

Maintaining the Stand-alone Flexi WCDMA BTS

Contents

Contents 3

Summary of changes in Maintaining the Stand-alone Flexi WCDMABTS 5

1 Performing routine maintenance tasks 7

2 Disconnecting cables 9

3 Replacing module fans 133.1 Replacing module fans from the back 133.2 Replacing module fans from the front 153.3 Replacing sheet metal fan carrier 183.4 Replacing plastic fan carrier 25

4 Replacing modules 354.1 Replacing RF Module 354.2 Replacing System Module 384.3 Replacing transmission sub-module 414.4 Replacing FPMA power sub-modules 454.4.1 Replacing AC/DC sub-module (FPAA) 454.4.2 Replacing battery sub-modules (FPBA) 50

5 Maintaining Flexi Mounting Shield 6U (FMSA) 555.1 Replacing module fans from the rear (FMSA) 555.2 Removing the back plate filter plate (FMSA) 585.3 Removing the door filter plate (FMSA) 635.4 Replacing the mounting shield door (FMSA) 66

6 Maintaining Flexi Mounting Shield 18U (FMSB) 716.1 Replacing module fans from the rear (FMSB) 716.2 Removing the back plate filter plate (FMSB) 746.3 Removing the door filter plate (FMSB) 796.4 Replacing the mounting shield door (FMSB) 82

7 Maintaining Flexi Mounting Kit Vertical 2G (FMUA) 877.1 Replacing RF Module fans in the single rack 877.2 Replacing System Module fans in the dual rack 93

8 Replacing Flexi System External Alarm Module (FSEB) 101

9 HW replacement/upgrade 103

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Contents

Summary of changes in Maintaining the Stand-alone Flexi WCDMABTS

Changes between document issues are cumulative. Therefore, the latestdocument issue contains all changes made to previous issues.

Changes between issues 5-0 and 5-1

Section number removed from section Summary of changes inMaintaining the Stand-alone Flexi WCDMA BTS.

A caution added to section Replacing System Module.


A warning added to section Disconnecting cables.

The Purpose text in section Replacing transmission sub-module edited.

A note added to section Replacing battery sub-modules (FPBA).


Section Replacing sheet metal fan carrier added.

Section Replacing plastic fan carrier added.

Section Replacing Flexi System External Alarm Module (FSEB) added.

Section Replacing transmission sub-module updated with information onthe FTJA transmission sub-module.

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Summary of changes in Maintaining the Stand-alone Flexi WCDMABTS

1 Performing routine maintenance tasksPurpose

Perform these steps during normal site visits to ensure that the basestation stays in good condition. The Flexi BTS design itself ismaintenance-free and therefore has no specified regular maintenanceintervals.

Steps

1. Check the fans and air circulation.

When needed, clean the fans of leaves and debris and free air inletsand outlets of obstructions to maintain proper air circulation andprevent overheating of the BTS. Keep the BTS environment clean ofdust.

2. Check the connector seals.

Check the connector seals visually. Replace worn or broken seals.

3. Check the antenna line and transmission cable connectors.

4. Check the screws.

Check the tightness of the module fixing screws. Replace alldamaged or missing screws.

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Performing routine maintenance tasks

2 Disconnecting cablesPurpose

Disconnecting cables may be needed when, for example, changingconfigurations, recommissioning or replacing modules.

Warning

Danger of eye damage caused by an invisible laser beam. Theoptical STM-1 transmission sub-module (FTOA) has no automaticlaser shutdown (ALS) feature. Make sure that the laser is switchedoff before removing the cable.

Caution

Optical fibre cables are fragile. Be careful when disconnecting anycables.

Steps

1. Remove any cable ties.

2. Detach the cable connector seal from the module mechanics.

Grip the connector seal by the stiffened end of the seal (the endconnected to the connector) as shown in the following figure.

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Disconnecting cables

3. Hold the cable with one hand and pull the seal backwards withyour other hand so that the connector is exposed.

DN70396644



4. If you are disconnecting an optical cable or a power cable, pushthe locking clips all the way down and pull simultaneously.

The optical cable has a locking clip on the top of the connector, andthe power cable has locking clips on either side of the connector.

5. Pull the connector out carefully.

6. If you are disconnecting an optical transceiver, first turn thelocking ring into a horizontal position and then pull the opticaltransceiver out.

3

DN70263196

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Disconnecting cables

3 Replacing module fans3.1 Replacing module fans from the back

Purpose

If a module fan fails, it must be replaced with a new one. Replacing the fanfrom the back of the module requires a back access and the minimum 200mm maintenance space behind the BTS. If there is not enough space forreplacing the fans from the back, the fans can also be replaced from thefront. See Replacing module fans from the front for more detailedinstructions.

Before you start

Warning

Risk of personal injury. Do not touch the fans.

Caution

The modules may be damaged if operated for a long time in the upperambient temperature range. Replace a faulty unit as soon as possible.

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Replacing module fans

Summary

Figure 1. Replacing module fan from the back

Steps

1. Shut down the module, if necessary.

It is also possible to replace the fans during operation. Shutting downis the recommended option.

2. Connect the ESD wrist strap to your wrist and then to the plinth.

3. Detach the module back cover.

4. Disconnect the fan cables.

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5

6

DN7037822

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5. Detach the screws and the fan plate from the module core.

6. Remove the fan plate.

7. Install the new fan plate and connect the fan cable.

Make sure that the IP sealing is in place.

8. Reinstall the module back cover.

3.2 Replacing module fans from the front

Purpose

If a module fan fails, it must be replaced with a new one. Modules can bereplaced from the front of the base station by pulling out the module core.The module core can be pulled out without dismounting the module stack.

Before you start

Caution

The modules may be damaged if operated for a long time in the upperambient temperature range. Replace a faulty unit as soon as possible.

Caution

The fans may break if the module core rests on the fans when it is out ofthe casing. Do not rest the core on the fans.

Steps

1. If you are replacing an RF Module fan, see Replacing RF Modulefor instructions how to remove the module core from thecasing.

2. If you are replacing a System Module fan, see Replacing SystemModule for instructions how to remove the module core fromthe casing.

3. Disconnect the module front panel cables.

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4. Loosen the cable entry screws and remove the cable entries.

5. Detach module fixing screws.

6. Pull out the module core from the casing.


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7

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Loosenthe screws

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5



8. Remove the fan plate sub-assembly from the fan carrier.

9. Install the new fan plate sub-assembly to the fan carrier.

10. Connect the fan cable.

Make sure that the IP sealing is properly in place.

11. Insert the core in the module casing.

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8

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12. Fix the core to the casing with screws.

Tighten the screws to 5 Nm.

13. Install cable entries.

14. Connect the cables to the module front panel.

15. Reroute and coil up the cabling.

16. Turn the power back on.

Make sure that the LED is lit, and that the fan is rotating and nothingis obstructing it.

3.3 Replacing sheet metal fan carrier

Purpose

The fan carrier must be replaced when it is damaged.

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11

Tightenthe screws

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Steps


2. Remove the fan plate sub-assembly from the fan carrier.

3. Cut the cable ties holding the fan cable and detach theconnector.

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4. Detach the connection sink from the fan carrier.

Press the two latches on the top of the connection sink and pullupwards.

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5. Rotate the connection sink slightly and pull it out.

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6. Detach the fan carrier screws (4 x M4) and the fan carrier fromthe module core.

7. Install the fan carrier to the module core.

Fix with four M4 screws. Tighten to 2.2 Nm.

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6

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8. Install the connection sink to the new fan carrier.

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9. Connect the connector and fix with a cable tie.

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3.4 Replacing plastic fan carrier

Purpose

The fan carrier must be replaced when it is damaged.

Steps


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2. Cut the cable ties.

3. Detach the fan plate sub-assembly from the fan carrier.

4. Cut the cable tie from the back.

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2

3



5. Detach the connector from the back.

6. Detach the connection sink from the fan carrier.

Press the two latches on the top of the connection sink and pullupwards.

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7. Rotate the connection sink slightly and pull it out.

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8. Detach the fan carrier screws (4 x M4) and the fan carrier fromthe module core.

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9. Install the fan carrier to the module core.


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10. Install the connection sink to the new fan carrier.

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11. Connect the connector.

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12. Fix with a cable tie.


Apply plastic friendly adhesive (or thread locking compound) overthe screws before installing the fans. Tighten the screws to 1.0 Nm.

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14. Fix the fan cable with cable ties.


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4 Replacing modules4.1 Replacing RF Module

Purpose

If an RF Module fails and you have done troubleshooting, the RF Modulecore must be replaced with a new one. The module core can be pulled outfrom the casing and replaced without dismounting the module stack.

Before you start

The RF Module core can be replaced without shutting down the BTS; theSystem Module and the remaining RF Modules remain functional duringthe operation.

Depending on the failure type, it is recommended that the module is rundown with Nokia WCDMA BTS Site Manager.

Summary

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Replacing modules

Figure 2. Replacing RF Module

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14

Loosenthe screws

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Tightenthe screws

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Steps

1. Loosen the screws and remove the module front cover (ifinstalled).


3. Run down the faulty RF Module with Nokia WCDMA BTS SiteManager.

4. Switch off the faulty RF Module fuse on the System Modulefront panel.

5. Disconnect the cables on the RF Module front panel.

Caution

Optical fibre cables and cable connectors are sensitive. Keep opticalfibre cables and cable connectors clean.

6. Pull aside all the cabling routed in front of the RF Module to bereplaced, if any.


8. Detach the module fixing screws.


Warning

The module core is hot. Do not remove the module core until it hascooled down.

Warning

The module is heavy. Take care when lifting the module.

10. Insert the new core in the module casing.

11. Fix the core to the casing with screws and tighten to 5 Nm.

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Replacing modules

12. Install the cable entries and tighten the screws.

13. Install the optical transceiver to the RF Module.

14. Connect the cables to the RF Module front panel as instructedin the Cabling the BTS and Creating Configurations document.

a. Connect the antenna cables.

b. Connect the optical cable.

c. Connect the internal power cable.


16. Push the connector seals firmly in place.

17. Switch on the RF Module fuse on the System Module frontpanel.

18. Commission the BTS with Nokia WCDMA BTS Site Manager.

4.2 Replacing System Module

Purpose

If the System Module fails, the module core must be replaced with a newone. The module core can be pulled out from the casing and replacedwithout dismounting the module stack.

Before you start

The BTS must be shut down when the System Module is replaced.

Take a commissioning file backup before replacing the module.

When the System Module is replaced, all required SW licence files mustbe reallocated from the NetAct Licence Management application. Forfurther information, see Licence management in Base Station Description.

Summary



Figure 3. Replacing System Module

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9

13 12

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14

8Loosenthe screws

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Tightenthe screws

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Replacing modules

Steps

1. Block the BTS with the Nokia WCDMA BTS Site Manager.

2. Shut down the BTS by pulling out the four fuses on the RFModule.

3. Disconnect the DC power mains breaker.


5. If you have the front panel cover installed

Then

loosen the screws and remove the module front panel cover.

6. Disconnect the cables in the System Module front panel.



9. Pull the module core out of the casing.

10. Disconnect the power cable.

11. Uninstall the transmission sub-module.

Make sure that the FCM-FTM connection card is in place at the newmodule core.

For additional information on how to uninstall and install thetransmission sub-module, see Replacing transmission sub-module.

12. Install the transmission sub-module to the new module core.

13. Connect the power cable to the System Module (FPFA) of thenew module core.

Check that the polarity is correct.

Connect the wires to the V48N- and V48RTN+ according to themarkings on the cable.



Caution

Risk of power supply failure and, in rare cases, of short circuit. Checkthat the polarity is correct according to the markings on the cable.

14. Insert the new core in the module casing.



17. Install the optical transceivers to the System Module.

18. Connect the cables to the System Module front panel.



21. Reinsert the four fuses on the RF module and switch on the DCmains power.

22. Restart and commission the BTS.

4.3 Replacing transmission sub-module

Purpose

If the transmission sub-module fails, or the transmission sub-module typechanges, the transmission sub-module needs to be replaced with a newone.

A faulty FTIA or FTJA transmission sub-module must be returned to NSNHardware Services (HWS) without the SFP transceiver units.

Before you start

The BTS must be shut down when the transmission sub-module isreplaced. Take a commissioning file backup before replacing the module.

It is recommended that the transmission sub-module be replaced in dryand clean conditions.

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Replacing modules

Summary

Figure 4. Replacing transmission sub-module

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16

9Loosenthe screws

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Tightenthe screws

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11

check that the connectoris straight

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13

15

DN7089081



Steps

1. Block the BTS with Nokia WCDMA BTS Site Manager.

2. Shut down the BTS by pulling out the four fuses on the RFModule.

3. Disconnect the DC power mains breaker.


5. If you have the front panel cover installed

Then

loosen the screws and remove the module front panel cover.

6. Disconnect the cables on the System Module front panel (ifneeded).

7. Disconnect the transmission cables.




11. Disconnect the power cable.

12. Loosen the 4 x M5 screws and detach the transmission sub-module.

Make sure that the FCM-FTM connection card is in place at the newmodule core.

13. Check that the FCM-FTM connection card on the SystemModule is straight.

14. Align the new transmission sub-module with the two guide pinsin the System Module, and push the sub-module in place.

15. If your transmission sub-module is FTOA,

Then

install the optical transceiver (delivered with the new unit).

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Replacing modules

16. If your transmission sub-module is FTIA or FTJA

Then

in case you use an optical GE interface, move the opticaltransceiver (SFP module) from the old unit to the new unit orreplace the transceiver with a new one (not included in thedelivery).

For specifications of suitable SFP modules, see Ethernet InterfaceOperating Mode in the Nokia Flexi WCDMA BTS Descriptiondocument.

17. Fix the transmission sub-module with 4 x M5 screws andtighten to 4 Nm.

18. Insert the module core inside the module casing.



21. Reconnect the disconnected transmission cables.

22. Reconnect the disconnected cables to the System Module frontpanel (if needed).

If using optical cables, do not bend them to a radius smaller than theminimum radius of 75 mm (3 inches).

Make sure that there is no dust or other dirt on the optical connector.If necessary, clean up the connector with special optical cleaner.


24. Reinsert the four fuses on the RF Module and switch on the DCmains power.

25. Restart and reconfigure the BTS.



4.4 Replacing FPMA power sub-modules

4.4.1 Replacing AC/DC sub-module (FPAA)

Before you start

It is recommended that power is switched off from the AC mains breaker.However, there can still be hazardous voltage in case batteries are used.

Steps

1. Remove the FPMA module front cover.

2. Switch off the power from the stand-by switch.

3. Remove the ingress protection plate.

4. Pull out the AC terminal plate.

DN70142401

Detach

3

Loosen

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Replacing modules

5. Disconnect the AC cable of the faulty FPAA.

6. Disconnect the alarm cable, if used.

7. Disconnect the DC cable.

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8. Remove the FPAA screws (2 pcs).

9. Replace the FPAA with a new one.

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Replacing modules

10. Fix the screws.

11. Re-connect the cables.

a. Re-connect the AC cables.

b. Re-connect the alarm cables.

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11a



c. Re-connect the DC cables.

Make sure that the LED is yellow at this point.

12. Re-install the ingress protection plate.

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11b

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Replacing modules

13. Turn on the unit by pushing the power switch for one second.

Make sure that the LED is stable green.

14. Install the FPMA module front cover.

4.4.2 Replacing battery sub-modules (FPBA)

Before you start

The FPBA is a Lithium-Ion battery and its transportation is classified asdangerous. Therefore only an approved brand-new UN class 9 packagecan be used for transportation of the FPBA unit. An opened packagecannot be used any more. An approved package can be ordered from theNokia Siemens Networks Service Center. If there are any visible damagesin the FPBA unit, it cannot be transported at all. In that case, contact theNokia Siemens Networks Service Center for assistance.

Note

Transport the Flexi Power Battery sub-module (FPBA) unit according tothe International Dangerous Goods Requirements (DGR) regulations.

DN70142507

Fix the screw

Tighten

12



Steps

1. Remove the FPMA module front cover.

2. Switch off the power from the FPBA stand-by switch.

3. Disconnect the DC cable from the faulty FPBA.

4. Disconnect the alarm cable, if used.

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Replacing modules

5. Remove the FPBA screws (2 pcs).

6. Replace the FPBA with a new one.

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7. Fix the screws.

8. Re-connect the cables.

a. Re-connect the alarm cable.

b. Re-connect the DC cable.

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Replacing modules

Make sure that the LED is yellow at this point.

9. Turn on the unit by pushing the power switch for one second.

The LED is blinking slowly green as the FPBA goes into the chargingmode. Once the FPBA is fully charged (approx. 8 hours), the LED isstable green.

10. Install the FPMA module front cover.



5 Maintaining Flexi Mounting Shield 6U(FMSA)

5.1 Replacing module fans from the rear (FMSA)

Purpose

Module fans can be replaced from the rear. If there is no back access, thefans can be replaced from the front by removing the module cores. Forinstructions, see Replacing module fans from the front in the Maintainingthe Stand-alone Base Station document.

Steps

1. Loosen the back plate screws (4 pcs).

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Maintaining Flexi Mounting Shield 6U (FMSA)

2. Remove the back plate by sliding it sideways.

3. Replace the module fan plate assembly.

For instructions, see Replacing module fans from the back in theMaintaining the Stand-alone Base Station document.

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2



4. Fix the back plate back in place.

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5. Fix the screws.

5.2 Removing the back plate filter plate (FMSA)

Purpose

The space between the back plate and filter plate may require cleaning. Inthat case, the filter plate must be removed.

Steps


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Front side

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2. Remove the back plate by sliding it sideways.

3. Loosen the screws (4 pcs) holding the filter plate.

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4. Clean out the space between the back plate and filter plate.

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5. Fix the filter plate back in place.

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6. Reinsert the back plate.

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5



7. Fix the back plate screws.

5.3 Removing the door filter plate (FMSA)

Purpose

The space between the door and filter plate may require cleaning. In thatcase, the filter plate must be removed.

Steps


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2. Clean out the space between the door and filter plate.

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5.4 Replacing the mounting shield door (FMSA)

Purpose

If the mounting shield door is damaged, it has to be replaced.

Steps

1. Disconnect the grounding cable from the door.

2. Remove the hinge pins (2 pcs).

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3. Remove the door.

4. Remove the hinges from the door side and insert them on thenew door.

5. Install the new door.

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6. Insert the hinge pins.

The tips of the hinge pins must point downwards. Push the hingepins at least halfway down the slot.

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7. Connect the grounding cable.

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6 Maintaining Flexi Mounting Shield 18U(FMSB)

6.1 Replacing module fans from the rear (FMSB)

Purpose

Module fans can be replaced from the rear. If there is no back access, thefans can be replaced from the front by removing the module cores. Forinstructions, see Replacing module fans from the front in the Maintainingthe Stand-alone Base Station document.

Steps


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Maintaining Flexi Mounting Shield 18U (FMSB)

2. Remove the back plate by sliding it upwards.

3. Replace the module fan plate assembly.

For instructions, see Replacing module fans from the back in theMaintaining the Stand-alone Base Station document.

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Front side

1



4. Fix the back plate back in place.

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5. Fix the screws.

6.2 Removing the back plate filter plate (FMSB)

Purpose

The space between the back plate and filter plate may require cleaning. Inthat case, the filter plate must be removed.

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Steps


2. Remove the back plate.


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4. Clean out the space between the back plate and filter plate.

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6. Reinsert the back plate.

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7. Fix the back plate screws.

6.3 Removing the door filter plate (FMSB)

Purpose

The space between the door and filter plate may require cleaning. In thatcase, the filter plate must be removed.

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Front side

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Steps


2. Clean out the space between the door and filter plate.

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6.4 Replacing the mounting shield door (FMSB)

Purpose

If the mounting shield door is damaged, it has to be replaced.

Steps

1. Disconnect the grounding cable from the door.

2. Remove the hinge pins (2 pcs).

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3. Remove the door.

4. Remove the hinges from the door side and insert them on thenew door.

5. Install the new door.

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6. Insert the hinge pins.

The tips of the hinge pins must point downwards. Push the hingepins at least halfway down the slot.

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7. Connect the grounding cable.

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7 Maintaining Flexi Mounting Kit Vertical2G (FMUA)

7.1 Replacing RF Module fans in the single rack

Steps

1. Disconnect the cables.

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Maintaining Flexi Mounting Kit Vertical 2G (FMUA)

2. Pull out the module core and insert the connector seals.

3. Detach the fan cable.

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4. Pull out the single rack.

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5. Remove the partition plate.

6. Replace the fans.

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7. Reinstall the partition plate.

8. Reinstall the rack.

Fix with six screws.

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10. Reinsert the module core.

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11. Connect the cables.

7.2 Replacing System Module fans in the dual rack

Steps

1. Disconnect the cables.

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2. Pull out the module core and insert the connector seals.

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3. Pull out the dual rack.

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4. Replace the fans.

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5. Reinstall the rack.

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6. Reinsert the module core.

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8 Replacing Flexi System External AlarmModule (FSEB)

Purpose

If a module fails and you have carried out troubleshooting, replace themodule with a new one.

When replacing the Flexi System External Alarm Module (FSEB), somealarms may be seen (depending on user-defined settings). The alarms willbe cancelled once you have replaced the module.

Steps

1. Connect the ESD wrist strap.

2. Disconnect the cables on the module.

3. Loosen the screws on the module.

4. Pull out the module.

5. Install the new module.

6. Check that jumper X1103 is set to WCDMA.


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Replacing Flexi System External Alarm Module (FSEB)

9 HW replacement/upgradeLicence files are tied to certain target identifiers of network elements.Broken HW may have an impact on the licence files depending on whetherthe unit stores the licence files or the target identifier of the networkelement:

. If a unit (for instance, RF Module) that does not store the licence filesand does not contain the target identifier of the network element isswapped, there is no impact on the licences.

. If a unit that stores the licence files is swapped, copies of the oldlicence files must be redistributed to the network element.

. If a unit that contains the target identifier of the network element isswapped, new licence files must be created and distributed to thenetwork element. The old licences are not needed anymore and canbe released back to the pool by using the pool substitute process.Licence pools have to be always available so that new licences filescan be delivered to the NE immediately when HW has beenreplaced.

Pool substitute process

Pool substitute process releases the licence files that were tied to a brokenTarget Identifier back to the pool for further usage.

See the following steps if System Module is broken. Changing atransmission sub-module does not affect licensing.

The pool substitute process includes the following steps:

1. A Pool substitute request file including a reason code is generatedby using the NetActTM Network Licence Manager application.

2. Substitute request file is imported to the Nokia Licence Generator.

3. Pool Substitute Permission File is created with the Nokia LicenceGenerator.

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HW replacement/upgrade

4. Pool Substitute Permission File is imported to the NetActTM Clusterof the broken HW.

5. Licences related to the broken HW are released.

The same substitute processes are also applied in case of a typing error intarget identifier information in NetActTM (that is, a wrong target for thelicence is selected). The broken HW and error cases are separated byreason codes in the NetActTM Network Licence Manager application aswell as in the files that are generated in the NetActTM Regional Cluster anddelivered to LG.



Maintaining the Stand-alone Flexi WCDMA BTSContentsSummary of changes in Maintaining the Stand-alone Flexi WCDMA BTS1 Performing routine maintenance tasks2 Disconnecting cables3 Replacing module fans3.1 Replacing module fans from the back3.2 Replacing module fans from the front3.3 Replacing sheet metal fan carrier3.4 Replacing plastic fan carrier

4 Replacing modules4.1 Replacing RF Module4.2 Replacing System Module4.3 Replacing transmission sub-module4.4 Replacing FPMA power sub-modules4.4.1 Replacing AC/DC sub-module (FPAA)4.4.2 Replacing battery sub-modules (FPBA)

5 Maintaining Flexi Mounting Shield 6U (FMSA)5.1 Replacing module fans from the rear (FMSA)5.2 Removing the back plate filter plate (FMSA)5.3 Removing the door filter plate (FMSA)5.4 Replacing the mounting shield door (FMSA)

6 Maintaining Flexi Mounting Shield 18U (FMSB)6.1 Replacing module fans from the rear (FMSB)6.2 Removing the back plate filter plate (FMSB)6.3 Removing the door filter plate (FMSB)6.4 Replacing the mounting shield door (FMSB)

7 Maintaining Flexi Mounting Kit Vertical 2G (FMUA)7.1 Replacing RF Module fans in the single rack7.2 Replacing System Module fans in the dual rack

8 Replacing Flexi System External Alarm Module (FSEB)9 HW replacement/upgrade

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