ALM-6414 Low Temperature Alarm

Description

This alarm is reported when the internal temperature of the cabinet is lower than the threshold (default: 0℃).

Attribute

Alarm ID Alarm Severity Alarm Type
6414 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.

70: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

Impact on the System

The BTS hardware may be destroyed if the alarm is reported.

System Actions

None.

Possible Causes

  • The environment temperature is lower than the lower temperature threshold.
  • The setting of the lower temperature threshold is improper.
  • The temperature sensor is faulty.
  • The cable connecting to the temperature sensor is faulty.
  • The lightning protection board is faulty.
  • The environment monitoring module is faulty.

Procedure

  1. Judge the causes according to other alarm information.

    View the temperature of the modules to judge if the environment temperature is normal.

    Y=> Go to Step 2.

    N=> The temperature is abnormal. Adjust it normal.

  2. Find out other causes.
    1. Check whether the lower temperature threshold of the DEMU is proper.

      Y=> Go to Step b.

      N=> Reset the lower temperature threshold.

    2. Check whether the temperature sensor works normally.

      Y=> The alarm is cleared.

      N=> The alarm is not cleared. Go to Step c.

    3. Check if the cables of the temperature sensor are properly connected.

      Y=> Go to Step d.

      N=> Reconnect the cables.

    4. Check whether the lightning protection board works normally.

      Y=> The alarm is cleared.

      N=> The alarm is not cleared. Go to Step e.

    5. Reset the environment monitoring module by software or hardware. Check if the alarm is cleared.

      Y=> Please contact Huawei Customer Service Center.

      N=> Reset or replace the DEMU.

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