ALM-6488 -48V Power too Low Alarm

Description

The alarm is reported when the voltage of the -48V power supply is lower than the lower threshold (default: -42V).

Alarm ID	Alarm Severity	Alarm Type
6488	Minor	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. 0-2:DEMU/EMU
3	Board No.	Number of the fault board 0-2:DEMU/EMU
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 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

The services may be interrupted.

None.

Check for the abnormal output of the power cabinet.
1. Check the power cabinet, and rectify the fault if any.
2. Check whether the alarm is cleared:
  Y => The alarm is cleared. The alarm handling ends.
  N => The alarm is not cleared. Go to procedure 2.
Check the threshold of the abnormal voltage alarm.
1. Check the threshold setting of the abnormal voltage alarm of the –48 V power:
  Y => Contact Huawei.
  N => Go to step b.
2. Set the threshold of the –48 V power alarm.
3. Check whether the alarm is cleared:
  Y => The alarm is cleared. The alarm handling ends.
  N => The alarm is not cleared. Contact Huawei Customer Service Center.