Severity Levels

VC12: Major (MJ), Minor (MN), Not Alarmed (NA)

VC3: Critical (CR), Minor (MN), Not Alarmed (NA)

SA (VC12): Major (MJ)

SA (VC3): Critical (CR)

NSA: Minor (MN)

AID Type

VC12 Ring Channel (Path)

VC3 Ring Channel (Path)

Date

Month/day/year that condition was detected

Time

Hour:minute:second that condition was detected

Probable Cause

AIS (AIS Detected)

Effect on Service

SA or NSA

Alarm Entity Type

VC12

VC3

Description

inc. VC12 TU-AIS

inc. VC3 TU-AIS

Likely Cause

Incomplete or incorrect cross-connection provisioning in an end-to-end network; unprotected removal or failure of a circuit pack at the far-end; unprotected optical line failure.

Visible Indication

Lighted CR/MJ or MN/ABN LED on SYSCTL faceplate.

Action

Proceed to Procedure 5-38: Clear "inc. STSN/VCN" conditions/alarms.