inc. (from DSX) E1 sig. failed

Description

The bit error ratio (BER) based on bipolar violations in the E1 signal incoming from the DSX-1 exceeds the provisioned threshold of 10-3.

Alarm Data

Value/Meaning

Severity Levels

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

Default: Not Alarmed (NA)

ASAP Type

E1 Port

AID Type

E1 Port

Date

Month/day/year that the condition was detected

Time

Hour:minute:second that the condition was detected

Probable Cause

T-BERL (incoming line signal BER thresholds exceeded)

Effect on Service

SA or NSA

Alarm Entity Type

E1

Description

inc. (from DSX) E1 sig. failed

Likely Cause

Failure of upstream equipment or facility (towards the DSX-1)

Cross-talk in office wiring

Failure of the 56DS1/E1 circuit pack

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 5-56: Clear "inc. (from DSX) E1" alarms.

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