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Network and DSX Interface LEDs
Label
Indication
SIG
Signal
OOF
Out of Frame
ALM
Alarm
Port 1 and Port 2 LEDs
Label
Indication
1-OK
Operational
2-OK
Status
Color
What It Means
Green
ON – A recoverable signal is present on
the network/DSX interface.
OFF – The signal cannot be recovered
from the network/DSX interface. An
LOS condition exists.
Yellow
ON – At least one OOF was detected
during the sampling period.
OFF – No OOFs were detected during the
sampling period.
Yellow
ON – An alarm condition is present on the
network/DSX interface.
Current alarm conditions:
OFF – No alarm condition is present on
the network/DSX interface.
Color
What It Means
Green
ON – The interchange circuits for the port
are in the correct state to transmit
and receive data.
OFF – The port is idle. Occurs if the port is
disabled, if an EDL Out of Frame or
EER condition is present, if a DCLB
is active, or if the port is configured
to monitor DTR and/or RTS and the
lead(s) is not asserted.
10
H
Loss of Signal ( LOS )
H
Loss of Frame (LOF)
H
Excessive Error Rate (EER)
H
Yellow Alarm
H
Alarm Indication Signal (AIS)
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