Bts Transceiver Module (Btrm); Fault Description - Huawei Airbridge cBTS3612 Maintenance Manual

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station

3.7 BTS Transceiver Module (BTRM)

3.7.1 Fault Description

I.
Receiving channel over-excited
II.
Software phase -lock unlocked
III.
Abnormal forward link power
IV.
Alarm on abnormal reverse signal strength
V.
RS485 link failure alarm
VI.
Other faults in the BTRM
Other faults in the BTRM include: transmitting channel clock
unlocked, hardware phase-lock unlocked, abnormal I
digital down frequency-converter failure.
VII.
BTS RF Fan Module failure
RF fan module failures include:
the BTS Fan Monitor Module is unable to read the temperature
sensor;
the fan is not running properly;
the BTS Fan Monitor Module generates a high-temperature alarm;
and the fan monitoring board is unable to control the fan speed.
Chapter 3 Component Failure
3-16
Handling
value and the
0