Configuration

Unstructured E3-3 SAM

Table 7-17: Unstructured E3-3 SAM Service Alarms

Service Alarm

Definition

 

 

LOS

Loss Of Signal indicates that there is no signal being input to the E3 from the

 

service side.

 

 

LOF

Loss of Framing indicates that the framing alignment of the signal coming

 

into the Broadmore 1750 from the ATM side has been lost.

 

 

AIS

This alarm indicates that the E3 port is receiving an Alarm Indication Signal

 

from the attached equipment. AIS is a validly framed E3 signal consisting

 

of a repeated 1010 data pattern.

 

 

Idle

An idle alarm means that an idle signal (validly framed E3 signal with a repeated

 

1100 signal) is being detected on the service side.

 

 

RAI

The Remote Alarm Indicator (also known as a Yellow Alarm) is transmitted by

 

setting the X bits to zero. In this instance, the service side equipment is

 

transmitting the RAI to the E3 port.

 

 

FEAC

Far End Alarm and Control Channel.

 

 

Line Code Violation

This alarm indicates that a long string of zeros is being received by the E3

 

port from any attached equipment.

 

 

Excessive F-bit Errors

The Excessive F-bit Errors alarm is triggered when the E3 port receives

 

F-bit errors at a rate of 1 x 10-4

 

 

Excessive Parity Errors

The Excessive Parity Errors alarm will be triggered when the E3 port

 

receives parity errors at a rate of 1 x 10-4

 

 

Excessive C-bit Errors

The Excessive C-bit Errors alarm will be triggered when the E3 port

 

receives C-bit errors at a rate of 1 x 10-4

 

 

Excessive FEBE Errors

The Excessive FEBE (Far End Block Error) alarm is triggered when the E3

 

port receives FEBEs at a rate of 1 x 10-4

 

 

7-62

Broadmore 1750 - Release 4.6

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Carrier Access 1750 user manual Unstructured E3-3 SAM Service Alarms