inc. EC1 LOS

Description

The specified EC1 port has detected at least 128 consecutive zeros in the incoming EC-1 signal, or the energy at the EC-1 input is below a preset threshold.

Alarm Data

Value/Meaning

Severity Levels

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

Default: Critical (CR)

ASAP Type

EC1 Port

AID Type

EC-1 Port

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

LOS (Loss of signal)

Effect on Service

SA or NSA

Alarm Entity Type

EC1

Description

inc. EC1 LOS

Likely Cause

The upstream equipment either failed or was removed. Input was disconnected either at the DSX or at the Alcatel-Lucent 1665 DMX backplane.

Visible Indication

Lighted CR, MJ, or MN LED on the SYSCTL faceplate (when the severity level is provisioned to Critical, Major, or Minor, respectively) and a flashing Fault LED on the alarmed circuit pack.

Action

Proceed to Procedure 5-57: Clear "inc. EC1" alarms.

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