Paradyne T1 T1 Access Mux 926x - Manual (Page 191)

OK
1-OK
2-OK
3-OK
4-OK
9109 SYNC D
A
T
A
PORT
97-15679
LEDs
Troubleshooting
9-9 9161-A2-GH30-30 April 1998
The following figure is an example of using the monitor test jacks:
H
DSX MON IN to allow test equipment to nonintrusively monitor the signal
being sent from the T1 access unit to equipment (e.g., a PBX) attached to the
DSX port on the rear of the T1 access unit.
H
DSX MON OUT to allow test equipment to nonintrusively monitor the signal
being sent equipment (e.g., a PBX) attached to the DSX port on the rear of
the T1 access unit.
T1 Access Unit
Internal
Circuitry
Test
Equipment
Front Rear
Mon In
Mon Out
Rx
Rx Test
Equipment
PBX
97-15680
Sync Data APM Front Panel LEDs
The Sync Data APM has five LED status indicators.
General Status LED
Label Indication Color What It Means
OK Power and
Operational
Status Green ON – APM has power and is operational.
OFF – APM is in a local self-test, or there is a
failure.
Port 1, Port 2, Port 3, and Port 4 LEDs
Label Indication Color What It Means
1-OK
2-OK
3-OK
4-OK Operational
Status 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.