OmniAccess 780 Overview
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OmniAccess 780 Hardware Users Guide
Alcatel-Lucent
4-port T1E1 Line Card LEDs
The LEDs on the 4-port T1E1 line card indicate Active or Fault condition, T1
mode, E1 Balanced (E1B) mode, and E1 Unbalanced (E1U) mode. The 4x4 LEDs
on the front of the card indicate Local Alarm, Remote Alarm, Carrier Detect, and
Loop Back for the four ports.
The following tables describe the status of LEDs on the T1/ E1 card.
Table 8: T1/ E1 Card LEDs
Table 9: T1/ E1 Port LEDs
Note:
You will see LED activity only when the port is administratively up.
LED
Status
Description
Active
Green
T1/ E1 card is active.
Yellow
Indicates transient conditions (e.g.,
booting).
Fault
Red
Reload in progress.
LED
Status
Description
Local Alarm (LA)
On
Indicates either Red or Yellow alarm
present or Transmitting Blue/AIS alarm
Off
Indicates neither Red nor Yellow alarm
is present and transmitter also not
transmitting AIS/Blue Alarm.
Remote Alarm (RA) On
Remote System is transmitting Blue/
AIS alarm.
Off
Remote system is not transmitting any
alarm.
Carrier Detect (CD)
On
Carrier detected (cable plugged in)
Off
Carrier not detected (cable plugged
out)
Loopback (LB)
On
Indicates port is in any of the local or
network loopback mode.
Off
Port is not in loopback mode.
