Adtran MX2800 M13 User Manual

MX2800 M13 Multiplexer User Manual

Status, Section 4

61200290L1-1G

    4-3

This field indicates the current state of the remote MX2800 (available with C-Bit framing only). Possible 
conditions are given in 

Normal

The far-end MX2800 is not reporting any alarm conditions.

RAI

The far-end unit is receiving an RAI (yellow) alarm from the network. This alarm 
is a signal sent back toward the source of a failed transmit circuit. The X-bits (X1 
and X2) are set to zero.

LOS

The far-end unit has lost the Rx signal.

AIS

The far-end unit is receiving an AIS (blue) alarm condition from the network. AIS 
alarms occur when consecutive 1010s are received in the information bits, indicat-
ing that there is a transmission fault located either at or upstream from the 
transmitting terminal.

LOF

The far-end unit detects a framing loss from the network.

Idle

The far-end unit detects an idle sequence from the network.

DS3 Eqpt Fail (SA) 

The far-end unit or network is reporting a service-affecting DS3 equipment failure.

DS3 Eqpt Fail (NSA)

The far-end unit or network is reporting a non-service-affecting DS3 equipment 
failure.

Common Eqpt Fail (NSA) 

The far-end unit or network is reporting a non-service-affecting common 
equipment failure.

Multiple DS1 LOS

The far-end unit is experiencing a loss of signal on multiple DS1s.

Single DS1 LOS

The far-end unit is experiencing a loss of signal on a single DS1.

DS1 Eqpt Fail (SA) 

The far-end unit is experiencing a service-affecting DS1 equipment failure.

DS1 Eqpt Fail (NSA) 

The far-end unit is experiencing a non-service-affecting DS1 equipment failure.

Unknown

The unit is unable to discern the status of the far-end unit. (Normal for M13 
framing.)