ALM-5308 EDU LNA Alarm

Description

This alarm is triggered when the EDU detects that the bias current of the receiving LNA is beyond the normal range.

Attribute

Alarm ID Alarm Severity Alarm Type
5308 Minor 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.

66:DDPU(EDU)
3 Board No.

Number of the fault board

0:EDU 0

1:EDU 1
4 PassNo

Number of the passage where the faulty board is located.
5 SubLink No.

Alarm sub-category number

0: EDU port 0

1: EDU port 1
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.

3:BTS30;

5:BTS312;

10:BTS3012A;

11:BTS3006A;

12:BTS3012;

13:BTS3006C;

14:BTS3002E;

15:BTS3012AE;

16:BTS3012 II;
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

  • Since the receiving LNA of the EDU works abnormally, the corresponding BTS receiving channel is less sensitive, thus the signal quality deteriorates.
  • The BTS has two receiving channels, a primary and a secondary. Therefore, the BTS can still work normally in this case.

System Actions

None.

Possible Causes

  • The receiving LNA of the EDU works abnormally
  • The EDU alarm circuit is abnormal.

Procedure

  1. Replace the EDU, reconnect all RF cables and start the corresponding TRX. View whether this alarm is cleared.

    Y=> The alarm handling ends.

    N=> Please contact Huawei Customer Service Center.

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