State; Alarm; Table 4-1. Network State Conditions; Table 4-2. Alarm Conditions - ADTRAN MX2800 M13 User Manual

Section 4, Status

State

This field displays the current condition of the network. Possible conditions are listed in
Condition
Normal

Alarm

In Test
Alarm
This field displays the current alarm condition of the MX2800. Possible conditions are given in
Condition
Normal
RAI
LOS
AIS
LOF
XCV
TLOS
Idle
4-2

Table 4-1. Network State Conditions

Description
The MX2800 is ready to pass data.
The unit is currently receiving an alarm indication. For alarm types, refer to the
Alarm subsection.
The unit is currently in test mode. Refer to
on the test type.

Table 4-2. Alarm Conditions

Description
No alarms are currently being received.
The unit is receiving an RAI (yellow) alarm from the network. This alarm is a sig-
nal sent back toward the source of a failed transmit circuit. The X-bits (X1 and X2)
are set to zero.
The unit has lost the Rx signal.
The unit is receiving an AIS (blue) alarm condition from the network. AIS alarms
occur when consecutive 1010s are received in the information bits, indicating that
there is a transmission fault located either at or upstream from the transmitting ter-
minal.
The unit detects a framing loss from the network.
The unit is receiving excessive code violations from the network, exceeding the
threshold set by the user. For more information, refer to
XCV Threshold on page 3-15.
The transmitter has failed.
The unit detects an idle sequence from the network.
MX2800 M13 Multiplexer User Manual
Table
Section 6, Loopbacks for information
61200290L1-1G
4-1.
Table 4-2.