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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The ODC_TEMP_ABN alarm indicates that the ambient temperature of the cabinet or the temperature of the storage battery is out of range.


Alarm Severity Alarm Type
Minor 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 alarm cause.

  • 0x01: The temperature is higher than the upper threshold.
  • 0x02: The temperature is lower than the lower threshold.
Parameter 2

Indicates the temperature type.

  • 0x01: The temperature at the air exhaust vent is out of range.
  • 0x0b: Ambient temperature 1 is out of range.
  • 0x0c: Ambient temperature 2 is out of range.
  • 0x0d: The battery group temperature is out of range.

Impact on the System

The equipment performance deteriorates, and the life of the equipment is shortened.

Possible Causes

Possible causes of this alarm are as follows:

  • The temperature thresholds are set to inappropriate values.
  • The cable between the temperature sensor and the monitoring equipment is connected incorrectly.
  • The temperature sensor is faulty.
  • The monitoring equipment is faulty.


  1. Check whether the temperature thresholds are appropriate according to the configuration plan.
    If... Then...

    The temperature thresholds are set to appropriate values

    Go to the next step.

    The temperature thresholds are set to inappropriate values

    Set the temperature thresholds to appropriate values.
  2. Check the cable between the temperature sensor and the monitoring equipment.
    If... Then...

    The cable is connected incorrectly or loosely

    Connect the cable correctly and securely.

    The cable is deteriorating or damaged

    Replace the cable.

    The cable is properly functioning

    Go to the next step.
  3. Check whether the temperature sensor is faulty. If the temperature sensor is faulty, replace it.
  4. Check whether the alarm is cleared.
    If... Then...

    The alarm is cleared

    No further action is required.

    The alarm persists

    Go to the next step.
  5. Rectify the fault on the monitoring equipment.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 75276

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