Severity Levels

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

SA Default: Critical (CR)

NSA Default: Minor (MN)

ASAP Type

OCn Port

AID Type

OC-N Line

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

OC3, OC12, OC48, or OC192

Description

inc. OC3 LOS,

inc. OC12 LOS,

inc. OC48 LOS, or

inc. OC192 LOS

Likely Cause

The OC-N OLIU circuit pack/pluggable transmission module failed at the near end, the receive fiber failed, or the OLIU circuit pack failed at the far end.

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

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 5-68: Clear "inc. OCN" alarms.