Severity Levels

Not Alarmed (NA)

AID Type

Slot

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

WKSWPR-1 (Working facility/equipment switched to protection unit 1)

WKSWPR-2 (Working facility/equipment switched to protection unit 2)

Effect on Service

Standing Condition (SC)

Alarm Entity Type

EQPT

Description

automatic lock

Likely Cause

System has locked protection switching between a 1+1 equipment-protected pair because the provisioned number of consecutive APS switches has occurred (DS3/EC1, TMUX, or high-speed Main).

Visible Indication

Lighted ABN LED on the SYSCTL faceplate.

Action

Proceed to Procedure 5-6: Clear "automatic lock" condition.