Adtran MX2800 M13 User Manual
MX2800 M13 Multiplexer User Manual
Installation and Operation, Section 2
61200290L1-1G
2-17
T1/E1 Status LEDs
These LEDs apply to each individual T1 or E1. Various conditions are indicated by the state of the LED
(its color and whether it blinks, alternates color, or is on solid). The condition descriptions vary depending
on whether the LEDs represent T1s or E1s of the active controller card or the controller card on standby.
(its color and whether it blinks, alternates color, or is on solid). The condition descriptions vary depending
on whether the LEDs represent T1s or E1s of the active controller card or the controller card on standby.
provides LED definitions for the active and standby cards.
Table 2-4. LED Conditions for Standby Cards
LED
LED State
Card Condition
ACT
Green blinking
Normal (all OK)
Amber solid
Software update in progress
Red blinking
Self test failed
NET
Off
Normal (all OK)
Red blinking
DS3 failure
ALM
Off
Normal (no alarm)
PRF
Off
Normal (all OK)
Table 2-5. T1/E1 LED Conditions
LED
LED State
T1/E1 Condition
Active
Card
Green solid
Normal (all OK)
Off
Disabled
Red blinking
LOS
Red flash (once per event)
Single/burst CV
Red solid
XCV threshold exceeded or AIS (refer to
Amber solid
In test (Local)
Green/amber alternating
In test (Remote)
Red/amber alternating
In test with alarms
Standby
Card
Off
Normal (all OK)
or
N/A (in the case of E1 configuration)
or
N/A (in the case of E1 configuration)
Red blinking
T1/E1 failure