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BTS3900 WCDMA
Site Maintenance Guide
Step 4 Run the DLD CFGFILE command to download the backup data configuration files on the NodeB
LMT to the new BBU3900
Step 5 Check the running status of the new WMPT.
1.
2.
Step 6 Check and ensure that the board version is consistent with the latest version in the existing
network. If the version is earlier than the version in the existing network, upgrade the software.
----End
Postrequisite
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5.3 Replacing a WBBP
Replacing a WBBP disrupts all the services carried by the NodeB.
Prerequisite
The tools and materials, such as an ESD wrist strap or a pair of ESD gloves, Phillips screwdriver,
ESD box or bag, dustfree cloth, and key to the cabinet door are ready.
Procedure
Step 1 On the LMT, run the BLK BRD command to block the faulty WBBP.
Step 2 Remove the faulty WBBP.
1.
2.
3.
4.
Step 3 Install a new WBBP.
1.
2.
3.
Step 4 Check the running status of the new WBBP.
Step 5 Check whether related alarms are reported.
Issue 07 (2009-08-30)
When the board is operational, the RUN LED blinks at 0.5 Hz, and the AL LED is OFF.
If the board works in active mode, the ACT LED is ON. If the board does not work or
works in standby mode, the ACT LED is OFF.
NOTE
For details on the LED of the WMPT, see the WMPT.
Record the bar code of the replaced board.
Contact the local Huawei office to handle the faulty board or module.
Attach temporary labels to the cables on the faulty WBBP, and then disconnect the cables.
Loosen the screws on the panel of the faulty WBBP.
Turn the ejector lever outwards, and then pull the faulty WBBP out of the slot.
Place the faulty WBBP in an ESD bag.
Insert a new WBBP into the slot, and then slide the board until it is in position.
Turn the ejector levers inwards, and then tighten the screws on the panel of the new WBBP.
Connect the cables to the ports on the panel of the new WBBP according to the recorded
cable connections.
NOTE
For details on the LEDs of the WBBP, see the WBBP.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 Replacing Components of the BTS3900
5-5
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