Severity Levels

Major (MJ), Minor (MN)

SA: Major (MJ)

NSA: Minor (MN)

AID Type

VT1.5 Ring Channel

Date

Month/day/year that condition was detected

Time

Hour:minute:second that condition was detected

Probable Cause

T-BERP (Incoming ring path signal BER thresholds exceeded)

Effect on Service

SA or NSA

Alarm Entity Type

VT1

Description

inc. VT sig. degrade (BER)

Likely Cause

An OC-N circuit pack failure or a fiber failure at some point on the failed ring.

An unprotected line/port carrying service failed: SA. A protected line/port failed: NSA.

Visible Indication

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

Action

Proceed to Procedure 5-43: Clear "inc. VT" conditions/alarms.