Nortel DMS-100 Series Maintenance Manual page 347

Node inservice troubles exist:
One or both units inservice trouble
0
STAR UNIT
STAR UNIT 1
Self Test Failed: Talk Battery Failure
6 Examine PM179 logs in LOGUTIL
At the STAR site
7 Make a visual inspection of the FSP. Check circuit breakers TalkA and TalkB.
If circuit breakers are
tripped
not tripped
At the PDC frame
8 Locate the fuses powering the STAR talk battery circuits.
9 Determine if the fuse is blown.
If the fuse is
blown
not blown
10 Remove the fuse holder that contains the blown fuse.
At the STAR site
11 Trip the circuit breaker TalkA or TalkB to remove the talk battery and circuit
breaker card out of the circuit and prevent blowing the cartridge fuse.
If affected unit is
Unit 0
Unit 1
At the PDC frame
12 Replace the cartridge fuse inside the fuse holder.
Star Remote System alarm clearing procedures
DMS-100 Family NA100 Star Remote System XPM15 and up
STAR talk battery
critical
Do
step 15
step 8
Do
step 10
step 16
DoTrip circuit breaker
TalkA
TalkB
11-81
(continued)