|
DIAGNOSTIC LED(S)
|
|
LED
|
Color
|
Status
|
Condition
|
|
OOF
|
Red
|
On
|
Network signal is out of frame synchronization, in red alarm status
|
|
OOF
|
Red
|
Off
|
Network signal is out of frame synchronization or in red alarm status
|
|
YEL
|
Amber
|
On
|
Yellow alarm signal received from network
|
|
YEL
|
Amber
|
Off
|
Yellow alarm signal not received from network
|
|
AIS
|
Red
|
On
|
Blue alarm signal received from network
|
|
AIS
|
Red
|
Off
|
Blue alarm signal not received from network
|
|
LOS
|
Red
|
On
|
Network signal has been lost
|
|
LOS
|
Red
|
Off
|
Network signal has not been lost
|
|
ERR
|
Amber
|
On
|
BPV, CSS, or SES error(s) detected on network
|
|
ERR
|
Amber
|
Off
|
BPV, CSS, or SES error(s) not detected on network
|
|
LCL
|
Amber
|
On
|
DSU/CSU is running a local loopback test
|
|
LCL
|
Amber
|
Off
|
Local loopback test not in progress
|
|
LINE
|
Red
|
On
|
DSU/CSU is running a line loopback test
|
|
LINE
|
Red
|
Off
|
Line loopback test not in progress
|
|
PAY
|
Amber
|
On
|
DSU/CSU is running a payload loopback test
|
|
PAY
|
Amber
|
Off
|
Payload loopback test not in progress
|
|
LNK
|
Green
|
On
|
No alarm declared
|
|
LNK
|
Green
|
Blinking
(on 50ms/off 500ms)
|
DSU/CSU is transmitting a AIS (blue) alarm
|
|
LNK
|
Green
|
Blinking
(on 500ms/off 50ms)
|
DSU/CSU is transmitting a yellow alarm
|
|
LNK
|
Green
|
Off
|
Severe alarm declared
|
|
SYNC
|
Green
|
On
|
No alarm declared
|
|
SYNC
|
Green
|
Blinking
(on 50ms/off 500ms)
|
DSU/CSU is transmitting a AIS (blue) alarm
|
|
SYNC
|
Green
|
Blinking
(on 500ms/off 50ms)
|
DSU/CSU is transmitting a yellow alarm
|
|
SYNC
|
Green
|
Off
|
Severe alarm declared
|
|
ACT
|
Green
|
On
|
RTS signal is high
|
|
ACT
|
Green
|
Off
|
RTS signal is low
|
|
ACT
|
Green
|
Blinking
(on 500ms/off 500ms)
|
Port 1 data is being rerouted through port 2
|
|
ACT
|
Green
|
Blinking
(on 50ms/off 500ms)
|
Data routed through port 1: if main port fails, data will be rerouted through port 2
|
|
BDL
|
Red
|
On
|
DSU/CSU is running a bi-directional loopback test
|
|
BDL
|
Red
|
Off
|
Bi-directional loopback test not in progress
|
|
PWR
|
Green
|
On
|
Power is on
|
|
PWR
|
Green
|
Off
|
Power is off
|
|
Note Top row of LEDs indicate main port status. Bottom row of LEDs indicate auxiliary port status
|