ADTRAN MX2800 - T1;E1 Status Leds; Table 2-3. LED Conditions for Standby Cards

Chapter 2. Installation and Operation
61200290L1-1 MX2800 User Manual 2-15
T1/E1 Status LEDs
These LEDs apply to each individual T-1 or E1. Different conditions
are indicated by the state of the LED (its color and whether it
flashes, 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. Table 2-4
provides LED definitions for the active and standby cards.
Table 2-3. LED Conditions for Standby Cards
LED State Card Condition
ACT
green blinking Normal (All OK)
amber solid Software Update in Progress
red blinking Self Test Failed
DS3
off Normal (All OK)
red blinking DS3 Failure
ALM
off Normal (No Alarm)
PRF
off Normal (All OK)