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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The NO_LSR_PARA_FILE alarm indicates that the laser parameter file of an optical module with EEPROM does not exist on the line board that uses laser parameter files when the board restarts.


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 optical port number.

Impact on the System

The optical module cannot be correctly configured, and the board cannot correctly transmit and receive services.

Possible Causes

The possible cause of this alarm is as follows:

  • No laser parameter file is detected in the EEPROM of the optical module.


  1. Replace the optical module.
  2. On the U2000, check whether the NO_PARA_FILE alarm is cleared.

    If... Then...
    If this alarm is cleared No further action is required.
    If this alarm persists Go to the next step.

  3. Replace the line board that reports the NO_LSR_PARA_FILE alarm.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

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