Table 5-15. Sts-1 Mux Card Communication State; Table 5-16. Sts-1 Mux Slot A/B State; Table 5-17. Vt/Port Alarm Condition Descriptions; Card Comm - ADTRAN MX2820 System Manual

Card Comm

This field indicates the current state of the communication link between the two STS-1 MUX
modules. Table 5-15

Table 5-15. STS-1 MUX Card Communication State

State
OK
Failure
Non-Redundant

Slot #A/#B State

This field indicates the current status of the two MUX modules.
possible states.
State
Not Installed
Standby
Active

VT/Port State

This field indicates the current state of the twenty-eight Virtual Tributaries (VT) and the port
to which each is mapped.

Table 5-17. VT/Port Alarm Condition Descriptions

VT/Port Alarm
OFF
OK
LOS
CAIS
LAIS
XCV
61186003L1-1D
provides the possible conditions.
Description
This condition indicates the modules are communicating.
This condition indicates the modules are not able to communicate
with each other.
This condition indicates only one module is installed.

Table 5-16. STS-1 MUX Slot A/B State

Description
A MUX module is not installed in this slot.
The MUX module is ready to pass data, but is currently acting as
backup module.
The MUX module is acting as the primary module.
Table 5-17 provides the possible state conditions.
Definition
T1/E1 Loss of Signal
Carrier Side AIS
Loop Side AIS
T1/E1 Excessive
Code Violations
Section 5, User Interface Guide - UIG-510, Status
Table 5-16
Condition Description
A VT is equipped but the T1/E1 port is disabled.
The port is in a normal state.
The unit has lost the receive signal on a T1/E1.
The T1 is receiving all ones from the STS side of the
network.
The T1 is receiving all ones from the DSX-1 inter-
face.
The MUX module is receiving excessive code viola-
tions, exceeding the threshold set by the user.
provides the
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