ALM-10758 Heat exchanger board communication alarm

Description

This alarm is reported when communications between the heat exchanger and the TMU are abnormal.

Attribute

Alarm ID Alarm Severity Alarm Type
10758 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.

74:DHEU

95:DTCU
3 Board No.

Number of the fault board

0:DHEU/DTCU
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.

15:BTS3012AE;

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 running status of the heat exchanger cannot be obtained when the alarm is generated.

System Actions

None.

Possible Causes

  • Wrong configuration of the TCU slot.
  • The TCU is not powered on or not in position.
  • The connection between the TCU and the BBU is faulty or abnormal.
  • The BBU interface unit is faulty.
  • The TCU is faulty.

Procedure

  1. Check whether the configuration of the slot is correct on the LMT. If the configuration is incorrect, configure the slot properly. Check whether the alarm is cleared:

    Y => The alarm is cleared. No further action is required.

    N => The alarm is not cleared. Go to step 2.

  2. Power off and then power on the TCU. Then, check whether the alarm is cleared.

    Y => The alarm is cleared. No further action is required.

    N => The alarm is not cleared. Go to step 3.

  3. Check the cable connection between the TCU, APMI, and BBU on the BTS side. If the alarm is not cleared after the cable connection fault is rectified, go to step 4.

  4. Check whether the PMU communication alarm is generated on the LMT.

    Y = > Replace the UPEU or UEIU board. Check whether the alarm is cleared:

    Y => The alarm is cleared.

    N => The alarm is not cleared. Go to step 5.

    N => Go to step 6.

  5. Replace the APMI and then check whether the alarm is cleared.

    Y => The alarm is cleared. No further action is required.

    N => The alarm is not cleared. Go to step 6.

  6. Replace the TCU and then check whether the alarm is cleared.

    Y => The alarm is cleared. No further action is required.

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

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