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On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
2.5 Abis Signaling Link Failure
2.5.1 Fault Description
After the BTS start-up, the Abis signaling link between the BTS
and BSC can not be established, or there are sometimes broken
links when the BTS is running.
From the BTS maintenance console, we can see the alarm
"Abis signaling link failure".
2.5.2 Troubleshooting
I.
Abnormal IMA group or UNI status
Please refer to "2.4
II.
Incorrect Abis signaling link parameter configuration
If the IMA link set status and the UNI status are normal, and the
BTS has obtained the configuration data, check if the Abis signaling
link configuration is correct.
Abis signaling link uses the IPOA mode, which requires
configuration of the following parameters: the PVC parameter (VPI
and VCI) of the Abis signaling link, the TCP/IP address (IP address,
subnet mask and TCP port ID.) We also need to make sure that the
PVC used by the Abis signaling link is different from that used by the
Abis service.
OML Failure" for details.
2-17
Chapter 2 General Fault
Processing
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Table of Contents
Troubleshooting
