2–OK
OK
ALM
TST
BKP
SIG
OOF
ALM
SIG
OOF
ALM
1–OK
9161
IN
OUT
IN
OUT
IN
OUT
IN
OUT
NET DSX NET MON DSX MON NETWORK DSX PORT
496-15051
Test
Jacks
LEDs
Troubleshooting
9-2 9161-A2-GH30-30
April 1998
T1 NAM LEDs

General Status LEDs

Label Indication Color What It Means
OK Power and
Operational
Status
Green ON NAM has power and is operational.
OFF NAM is in a power-up self-test, or there is a
failure.
CYCLING – The unit is in Minimum mode. Requires an
FTP download.
ALM System
Failure/
Self-Test
Red ON NAM has just been reset, or an error or fault
has been detected.
OFF No failures have been detected.
TST Test Mode Yellow ON Loopback or test pattern in progress, initiated
locally, remotely, or from the network.
OFF No tests are active.
BKP Backup Yellow Not supported in this release. Remains off except during
a Lamp Test.