Chapter 4 Component Replacement; Common Procedure Of Replacement; Board Replacement - Huawei Airbridge cBTS3612 Maintenance Manual

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station

Chapter 4 Component Replacement

4.1 Common Procedure of Replacement

4.1.1 Board Replacement

I.
Preparations for Board Removing
Alarm query:
1)
Before replacing the board, query the BTS alarm from the OMC
console and make notes of it. After the board is replaced, query the
alarm again and check if the alarm is cleared and if there is a
recovery alarm.
Version check:
2)
Before replacing the board, check the version of the board and
its software and make notes. Conduct the query again after the
board is replaced and check if the version is the expected one.
Safety precautions:
3)
Boards or modules are sensitive to static electricity and can be
damaged by them. Therefore, anti-static measures must be taken
when handling the board or module, e.g. wear anti-static gloves or
wrist strap which should be ensured to be properly grounded.
Power supply cut-off:
4)
Cut off the power supply to the board to be replaced, and
resume the power supply after the board is replaced.
Chapter 4 Component
4-1
Replacement