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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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WCV

WCV

Description

The WCV event indicates the pump laser working current, also called pump laser driver current or pump laser bias current. It includes:

  • WCVMAX: stands for the maximum value during a period of time (in 1 mA).
  • WCVMIN: stands for the minimum value during a period of time (in 1 mA).
  • WCVCUR: stands for the current value (in 1 mA).

Attribute

Performance Event ID Performance Event Type

WCVMAX: 0x70

Equipment function

WCVMIN: 0x71

WCVCUR: 0x72

Impact on the System

When the pump laser works properly, there is no impact on the services. If an alarm is generated, identify the cause.

Possible Causes

WCV indicates the pump laser driver current of an optical amplifier board. The optical amplifier board amplifies the input signal using the pump laser driven by pump laser working current.

Related Alarms

Alarm Name Correlation
PUM_BCM_ALM

Pump laser bias current threshold-crossing alarm. The board reports this alarm when the detected pump laser drive current is higher than the threshold due to laser exceptions caused by laser aging, or over-high/low ambient temperature.

LSR_WILL_DIE

Laser life time termination alarm. The board reports this alarm when the pump laser drive current is higher than the termination threshold due to laser aging.

TD

Transmitting laser degrade alarm. The threshold of the laser is set to a value 1.2 times of the initial value of the bias current. This alarm is generated when the bias current of the laser exceeds the threshold and is smaller than the initial value by 1.5 times.

Procedure

  1. If the PUM_BCM_ALM alarm is generated, see the related handling procedure.
  2. If the LSR_WILL_DIE alarm is generated, see the related handling procedure.
  3. If the TD alarm is generated, see the related handling procedure.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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