Receiving Line Division Unit (Rldu); Power Supply Unit (Psu) - Huawei Airbridge CBTS3612-800 User Manual

User Manual
Airbridge cBTS3612-450 12-carrier CDMA Base Station
Check whether the output power of the BHPA is excessively high. If it is high,
l
please reduce it.
Replace the BHPA.
l

6.9 Receiving Line Division Unit (RLDU)

6.9.1 Description of Fault
Antenna standing wave alarm.
l
RLDU fault.
l
6.9.2 Fault Analysis and Location
I. Antenna standing wave alarm
The antenna standing wave alarm in a sector means the mismatch of an antenna
feeder system. If an antenna fault leads to higher antenna standing wave or the
antenna and feeder are not normally connected, an antenna standing wave alarm in
the sector will occur.
The troubleshooting process is gradually completed. If the fault cannot be eliminated
in a certain step, please handle it as described in the next one.
Check whether the antenna feeder connection and antenna are normal.
l
Check whether CDU works normally.
l
Check whether the connection cable between CDU and RLDU is normal.
l
Check whether the power indicator on the RLDU panel works correctly.
l
Replace the RLDU.
l
II. RLDU fault
If the RLDU fault alarm occurs, the faulty RLDU needs replacing.

6.10 Power Supply Unit (PSU)

6.10.1 Description of Fault
The PSU does not work or work abnormally
l
PSU fan fault.
l
PSU output over-voltage fault.
l
PSU input under-voltage fault.
l
PSU overheat fault.
l
6.10.2 Fault Analysis and Location
I. The PSU does not work or not work normally
If the 3 indicators on the PSU panel are all off or flash, it shows that the PSU is not in
normal status and an unknown fault occurs. In this case, the PSU needs replacing.
03Q-0112-20020720-120
6 Part Module Fault
6-11