ALM-2114 TRX LAPD Link Interrupt Alarm

Description

A TRX reports this alarm upon detecting that an LAPD link is not available.

Alarm ID	Alarm Severity	Alarm Type
2114	Major	Fault

ID	Name	Meaning
1	Site No.	Number of the site where the faulty board or module is located Value range: 0-2047
2	Board Type	Number of the type which the faulty board belongs to. 135:TRX
3	Board No.	Number of the fault board Value range: 0-71
4	PassNo	Number of the passage where the faulty board is located.
5	SubLink No.	Alarm sub-category number 255:None
6	Cell Index	Index of the cell where the board or module is located 0-2047: Cell index of the faulty cell in the data configuration 65535: None
7	Site Type	Type of the site where the faulty board or module is located 3: BTS30 5: BTS312 10: BTS3012A 11: BTS3006A
8	RackNo	Number of the rack where the faulty board is located.
9	BoxNo	Number of the subrack where the faulty board is located.
10	SlotNo	Number of the slot where the faulty board is located.
11	Site Name	Site Name
12	Alarm Attribute	Alarm Character 0:Normal 1:Transient Count

All the services of the TRX will be interrupted upon occurrence of this alarm.

When the alarm occurs, the BSC or TRX will automatically attempt to re-establish a link. If the attempt fails in 20 seconds, the BSC or TRX will turn off the corresponding power amplifier. When the alarm is cleared, the BSC or TRX will automatically turn.
If the TRX carries a BCCH, the system will start BCCH mutual-assistance.

Replace the TRX Board
Replace the TRX and check whether the alarm is cleared.

Y=> The alarm is cleared. The alarm handling is complete.

N=> The alarm is not cleared. Go to step 2.
Replace the Data Bus in the Racks
Replace the data bus in the racks and check whether the alarm is cleared.

Y=> The alarm is cleared. The alarm handling is complete.

N=> The alarm is not cleared. Go to step 3.
Check the Abis Interface Board. For details, see the BSC help system. If the alarm is not cleared, contact Huawei Customer Service Center.