Table 5-5. Multiplexer Alarm Conditions; Table 5-6. M13 Mux Protection Modes; Table 5-7. M13 Mux Card Communication State; Multiplexer State - ADTRAN MX2820 System Manual

Multiplexer State

Alarm

This field displays the current alarm condition for the Multiplexer State.
possible alarm conditions.
Alarm (Condition)
None
Excessive Switches
Switched to Protect

Protection

This field indicates the current protection mode for the M13 MUX module.
the possible state conditions.
Mode
Circuit
None

Card Comm

This field indicates the current state of the communication link between the two M13 MUX
modules. Table 5-7 provides the possible conditions.
State
OK
Failure
Non-Redundant
61186003L1-1D

Table 5-5. Multiplexer Alarm Conditions

Description
No multiplexer state alarms.
This condition indicates the maximum switching threshold has been
exceeded.
This condition indicates a module switch has occurred.

Table 5-6. M13 MUX Protection Modes

Description
The unit is in Circuit Protection mode and everything is functioning.
One M13 MUX module is installed, or the unit is in Circuit Protection
mode, and the secondary module has failed.

Table 5-7. M13 MUX Card Communication State

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.
Section 5, User Interface Guide - UIG-510, Status
Table 5-5
Table 5-6
lists the
provides
5-23