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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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Performance Event Meaning

The OSPITMPMAX event indicates the maximum value of the laser temperature.

Performance Event Attributes

Performance Event ID Performance Event Type


SDH performance event

Impact on the System

This performance event does not affect the system. When the laser temperature is high or low, however, the laser does not work normally and therefore services may be interrupted.

Possible Causes

Count the maximum value of the temperature of the laser in the current period. This value shows the physical performance, which exists after the laser is online.

Relevant Alarms



  1. Determine whether the laser temperature is within the allowed range. If yes, no action is required. If not, go to the next step.
  2. Replace the optical module.



Updated: 2019-01-21

Document ID: EDOC1100020975

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