Nortel DMS-100 Series Maintenance Manual page 748

13-100 Routine maintenance common procedures
Site test
OPAC
(continued)
At the MAP terminal
5
6
7
At the OPAC site
8
297-8211-550 Standard 05.01 August 1999
Measure the voltage of each battery in the failed battery string. If the voltage of
any battery is more than 1 V less than the voltage of the other batteries in the
string, replace the complete string.
If voltage for
any battery is greater than 1 V
different from any other
all batteries in string are within 1 V
difference
Measure the voltage of the battery string.
If
the battery string voltage is less than
OPM_VOLT_TST_OCC (–50.4 Vdc)
the battery string voltage is less than
OPM_VOLT_TST_DIS (–49.5 Vdc)
all voltages measure OK
Measure the voltage of each battery string.
If
all strings appear OK
any string continues to fail the audit test, and
other strings pass
Replace the battery string.
Do
step 8
step 6
Do
step 8
step 8
step 7
Do
step 9
step 8