Severity Levels

Not Alarmed (NA)

AID Type

DS1 Port

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

LPBKNETWORK (Loopback, Network)

Effect on Service

Standing Condition (SC)

Alarm Entity Type

T1

Description

DS1 loopback (to DSX)

Likely Cause

User selected Fault → Analysis → Loopback.

Visible Indication

Lighted ABN LED on the SYSCTL faceplate.

Action

Proceed to Procedure 5-21: Clear "DS1 loopback (to DSX)" condition.