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22
AL: T1
Alarm
Port 1
and 2
No
illumination
T1 uplink connection is
operational
An established T1 uplink
connection has no alarm
indications and is
operational UNLESS the T1
LK LED remains unlit as
well, in which case the T1
uplink connection is in Red
Alarm.
Solid
amber
Yellow Alarm: The T1
uplink's outgoing connection
has been lost; no data is
being transmitted.
The remote T1 provider
equipment has lost its
incoming connection and is
in Red Alarm.
Pulsing
amber
Blue Alarm: An indirect
connection has been lost;
the T1 uplink port may no
longer be receiving data
from the remote T1 provider
equipment.
The remote T1 provider
equipment has lost a
connection with an
intermediate device and is in
Red or Yellow Alarm.
SHDSL
LK: Ports
1-24
Flashing
green
SHDSL connection is
established and active
The port has received valid
data from the remote
SHDSL modem within the
last second.
Solid green Problematic SHDSL
connection
A connection exists but there
is indication of a problem
with the SHDSL line.
No
illumination
No SHDSL connection
SHDSL
ACT:
Ports
1-24
Flashing
amber
SHDSL connection is
established and active
Traffic is flowing.
Solid
amber
Heavy traffic The port is receiving
unusually large amounts of
data from, and/or
transmitting unusually large
amounts of data to, the
remote SHDSL modem.
No
illumination
No activity A link may exist but no data
is being transmitted to the
remote SHDSL modem.
Table 9. LEDs (3 of 3)
State Indication Additional Information