Oml Failure; Fault Description; Troubleshooting - Huawei Airbridge cBTS3612 Maintenance Manual

Cdma base station

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On-site Maintenance Manual

Airbridge cBTS3612 CDMA Base Station

parameters, such as the BTRM ID, cell ID, cell resource pool ID and

optical interface ID, etc. Reconfigure those parameters if necessary. 　

Incorrect physical board connection 　

Possible cause to BTS initialization failure due to incorrect

physical board connection: 　

1) The boards are not installed properly and need to be

corrected; 　

2) The optical fiber connection fault between the BRDM and

BTRM, you may need to refer to "3.2

Failure" for proper handling measures. 　

2.4 OML Failure　

2.4.1 Fault Description 　

After the BTS is powered on, the BOOTP process fails, the

attempt to establish OML signaling link of the OMC fails or the OML

breaks while the BTS is running. 　

We can see the alarm "OML Failure" from the BTS maintenance

console. 　

The BTS OML connection starts from the BCKM and passes the

BCIM, the XIE board of BSC, the CMUX, the LPU board of the

switching subrack and the MPU board and ends at the BAM. Any

problem in any link of the route may lead to the OML failure. 　

Chapter 2 General Fault

Handling of Common Board

2-13

Processing

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