Backplane Replacement - Huawei Airbridge cBTS3612 Maintenance Manual

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
cleared and a recovery alarm is generated at the same
time.
3) Do a dial-up test with an MS and see if the BTS is working
properly.
4.1.2 Backplane Replacement
I.
Replacement Preparations
1) Safety precautions
Be sure to take anti-static measures when handling the
backplane. Follow the operation procedures strictly so as to prevent
the static electricity from damaging the board. The backplane
replacement must be done with the power off and relevant operation
procedures must be strictly followed. Wear anti-static wrist strap or
gloves and connect the grounding end with the ground properly (the
switch housing).
Power supply cut-off
2)
Cut off the power supply for the whole BTS cabinet before doing
the replacement.
3) Common tools
A crosshead screwdriver for driving M3 screws is needed when
replacing the backplane.
4) Detach the BTS cabinet door
Loosen the BTS door screws;
l
Take the door apart from the cabinet;
l
Rest the door in a safe place.
l
Take the boards or modules apart from the backplane
5)
Chapter 4 Component
4-4
Replacement