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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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The CCV event indicates the pump laser cooling current. It includes:

  • CCVMAX: stands for the maximum value during a period of time.
  • CCVMIN: stands for the minimum value during a period of time.
  • CCVCUR: stands for the current value.


Performance Event ID Performance Event Type

CCVMAX: 0x73

Equipment function

CCVMIN: 0x74

CCVCUR: 0x75

Impact on the System


Possible Causes

An A/D converter is used to sample the voltage corresponding to the cooling current of each laser, and convert the voltage into cooling current. This value shows the working status of the cooling circuit in a laser.

Related Alarms

Alarm Name Correlation

This alarm is generated when the cooling current of the laser exceeds the permitted range.


  1. If the PUMP_COOL_EXC alarm is generated, handle the alarm by referring to the alarm handling procedure.

Related Information


Updated: 2019-01-21

Document ID: EDOC1100020975

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