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