Severity Levels

Critical (CR), Major (MJ), Minor (MN),

Default SA: Critical (CR)

Default NSA: Not Alarmed (NA)

AID Type

STMN Line

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

STM1

STM4

STM16

Description

inc. STM1 MS-AIS

inc. STM4 MS-AIS

inc. STM16 MS-AIS

Likely Cause

The STMN OLIU circuit pack failed at the far-end network element.

Visible Indication

Lighted CR/MJ or MN/ABN LED on SYSCTL faceplate and a flashing FAULT LED on the alarmed circuit pack.

Action

Proceed to Procedure 5-36: Clear "inc. OCN/STMN" conditions/alarms.