Forced Switch

Description

The protection tributaries (in the specified direction [East or West] on the 2-fiber BLSR) are selected unless there is an existing lockout or forced protection switching request.

Alarm Data

Value/Meaning

Severity Levels

Not Alarmed (NA)

AID Type

OC-48 line

OC-192 line

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

FSR (Forced Switch)

Effect on Service

Standing Condition (SC)

Alarm Entity Type

OC48

OC192

Description

Forced Switch

Likely Cause

User executed a manual switch on the 2-fiber BLSR using Fault → Protection Switch and selected Force To Protection, Ring.

Visible Indication

Lighted ABN LED on the SYSCTL faceplate.

Action

Proceed to Procedure 5-43: Clear "Forced Switch" condition.

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