inc. (from fiber) DS3 RAI

Description

The system has detected an incoming Remote Alarm Indication (RAI) at the specific port. For C-bit, the RAI is declared when the far end detects a service-affecting equipment failure, DS3 LOS, DS3 LOF, or DS3 AIS. For M13, the RAI is declared when the far end detects a DS3 severely errored frame.

Alarm Data

Value/Meaning

Severity Levels

Critical (CR), Major (MJ), Minor (MN), Not Alarmed (NA), Not Reported (NR)

Default: Not Alarmed (NA)

ASAP Type

DS3 Port

AID Type

DS3 Port

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

RAI-EGR (Remote Alarm Indication in Egress Position)

Effect on Service

NSA

Alarm Entity Type

T3

Description

inc. (from fiber) DS3 RAI

Likely Cause

A remote incoming signal failure was detected at the interfacing customer equipment that is connected to the far-end SONET network element.

Visible Indication

Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively)

Action

Proceed to Procedure 5-55: Clear "inc. (from fiber) DSn RAI" alarms.

November 2011Copyright © 2011 Alcatel-Lucent. All rights reserved.