Nortel DMS 100 Series Maintenance Manual page 365

3 The voltages must be within 2% of the nominal values printed on the
faceplate. Compare the voltages measured in step 2 with the following
acceptable voltage ranges:
Test point voltage
+12 V
-12 V
+ 5 V
-5 V
If test point voltages are
within acceptable range
not within acceptable range
Replace the power converter as Card Replacement Procedures directs.
4
5 This procedure is complete.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
RSC-M routine maintenance procedures
Testing power converter voltages
Acceptable range
+11.76 V to + 12.24 V
-12.24 V to -11.76 V
+4.9 V to +5.1 V
-5.1 V through -4.9 V
Do
step 5
step 4
12-23
(end)