ALM-10252 ALD Communication Alarm

Description

The Antenna and TMA Control Unit cannot run normally. The tower mounted amplifier (TMA) and the Remote Electrical Tilt (RET) antenna may be interrupted.

Attribute

Alarm ID	Alarm Severity	Alarm Type
10252	Major	Fault

Parameters

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. 67:DATU 98:GATM
3	Board No.	Number of the fault board 0-35:DATU/GATM
4	PassNo	Number of the passage where the faulty board is located.
5	SubLink No.	Alarm sub-category number 0:ALD communication alarm 1 1:ALD communication alarm 2 2:ALD communication alarm 3 ... 23:ALD communication alarm 24
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 is located. 12:BTS3012; 13:BTS3006C; 14:BTS3002E; 15:BTS3012AE; 16:BTS3012 II; 17:DBS3900 GSM; 18:BTS3900 GSM; 19:BTS3900A GSM;
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

Impact on the System

The BTS cannot communicate with the ALD. The ALD cannot be operated.

System Actions

None.

Possible Causes

The ALD is not installed.
The communication link is faulty.
The Antenna and TMA Control Unit is faulty.

Procedure

Check if the ALD is powered on and in position.
Y=>Go to Step 3.

N=>Go to Step 2.
Power on the ALD or install it. Check if the alarm is cleared.
Y=>The alarm is cleared. Alarm handling is complete.

N=>Go to Step 3.
Check if the communication cable of the ALD is properly connected.
1. Check if the communication cable of the ALD is properly connected.
  Y=>Go to Step 4.
  
  N=>Go to Step b.
2. Connect the communication cable of the ALD properly. Check if the alarm is cleared.
  Y=>The alarm is cleared. Alarm handling is complete.
  
  N=>Go to Step 4.
Check if the feeders are connected properly.
1. Check if the feeders are connected properly.
  Y=>Go to Step 5.
  
  N=>Go to Step b.
2. Connect the feeders properly and check if the alarm is cleared.
  Y=>The alarm is cleared. Alarm handling is complete.
  
  N=>Go to Step 5.
Check if the Antenna and TMA Control Unit runs normally.
Reset the DATU, power it off and on again, and Replace the faulty Antenna and TMA Control Unit. Check if the alarm is cleared.

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

N=>Go to Step 6.
Replace the faulty ALD. Check if the alarm is cleared.
Y=>The alarm is cleared. Alarm handling is complete.

N=>The alarm is not cleared.Please contact Huawei Customer Service Center.