Huawei Airbridge cBTS3612 Maintenance Manual page 25

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
Whether the RLDU is power on and works properly;
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Whether the RLDU panel configuration selection switch
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"S/W" is in the correct position. Refer to "Table 6-2
Description of RLDU switches" for details about it;
Whether the BTRM is working properly;
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Whether the BCPM is working properly;
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Whether the BTS physical configuration is correct,
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including the parameters of the cell and inverse searching
parameters, etc.
If there is a problem detected in a certain step, refer to the
relevant chapter for proper handling measures, for example, if there
is problem with the BTRM, go to "3.7
(BTRM )" for proper handling measures.
VI.
Check transmitting channel
The BTRM, BHPA, CDU (or DFU, or DDU) and the antenna and
feeder constitute the transmitting channel. The malfunctioning of
transmitting channel will result in no BTS signal output or abnormal
BTS signal output. In such case, we can still find on the OMC
console that the logic configuration for the cell has been completed,
but the MS will not be able to connect to the network. We can then
go through the following steps as well as checking the relevant
indicators, board status and alarm messages, etc. to locate the
problem:
Whether the CDU (or DFU, or DDU), BHPA and BTRM are
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secured in place, or whether the panel screws are all
tightened;
Chapter 2 General Fault
BTS Transceiver Module
2-6
Processing