Severity Levels

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

SA Default: Critical (CR)

NSA Default: Minor (MN)

ASAP Type

STS Ring Channel

AID Type

STS-1, STS-3c, STS-12c, STS-48c, or STS-192c Ring Channel

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

LOP (Loss of pointer)

Effect on Service

SA or NSA

Alarm Entity Type

STS1, STS3C, STS12C, STS48C, or STS192C

Description

inc. STS1 LOP,

inc. STS3C LOP,

inc. STS12C LOP,

inc. STS48C LOP, or

inc. STS192C LOP

Likely Cause

If this condition occurs on only one OC-N line, the likely cause is a failed OC-N OLIU circuit pack at the near-end or far-end of the line. If the condition affects the same pointer in both OC-N lines of an OC-N interface, the cause could be unprotected failure of an STS cross-connected circuit pack (DS3) in the adjacent upstream network element or cross-connect mismatch between STS-1, STS-3c, STS-12c, STS-48c, and STS-192c.

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 5-74: Clear "inc. STSN" conditions/alarms.