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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The POWER_MODULE_OFFLINE alarm indicates that a power module is offline. This alarm is reported when a power module is detected offline.


Alarm Severity Alarm Type


Equipment alarm


When you view an alarm on the network management system, select the alarm. In the Alarm Details field display the related parameters of the alarm. The alarm parameters are in the following format: Alarm Parameters (hex): parameter1 parameter2...parameterN. For details about each parameter, refer to the following table.

Name Meaning

Parameter 1

Indicates the power module number.

  • 0x01: Power module 1 is offline.
  • 0x02: Power module 2 is offline.

Impact on the System

When this alarm is reported, no power is provided for the corresponding port.

Possible Causes

Possible causes of the ROWER_MODULE_OFFLINE alarm are as follows:

  • The power module is in poor contact.
  • The power module is faulty.


  1. Check whether the power module is in poor contact.

    If... Then...
    The power module is in poor contact Insert the power module correctly, and then check whether the alarm is cleared. If the alarm persists, go to the next step.
    The power module is in good contact Go to the next step.

  2. Check whether the power module is faulty.

    If... Then...
    The power module is faulty Replace the power module with a functioning one.
    The power module works normally Contact Huawei technical support engineers for handling the alarm.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 82833

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