4136 TRX Hardware Critical Alarm

Description

The alarm is reported when any of the following conditions occurs: (1) The TRX phase-locked loop is faulty, which causes the TRX unavailable. (2) The DSP download fails. (3) The power unit, power amplification unit, flash memory or RF module is faulty, which causes the TRX unavailable.

Attribute

Alarm ID Alarm Severity Alarm Type
4136 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.

65:DTRU/GTRU/DDRM

88:DRRU

92:DRFU

96:MRRU

100:MRFU

101:GRFU

102:GRRU

151:QTRU

3 Board No.

Number of the fault board

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

Impact on the System

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

System Actions

  • When this alarm occurs, the DTRU shuts off the power amplifier automatically. For the DTRU of main BCCH, DTRU mutual aid is started.

Possible Causes

  • The DTRU hardware is running abnormally.
  • The DTRU hardware is faulty.

Procedure

  1. Reset the DTRU.

    Reset the DTRU, 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 procedure 2.

  2. Replace the DTRU.

    Replace the DTRU, and check whether the alarm is cleared.

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

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


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