Nortel DMS-100 Series Maintenance Manual page 620

13-18 OPM routine maintenance procedures
Battery replacement
OPM
(continued)
9
10
BR
–48 V
Black Red
BR
–48 V
Black Red
Note: Use a digital ohmmeter to test the string. The meter should read –48 V dc
when you connect the RED lead to black terminal and BLACK lead to red terminal.
11
12
At the MAP terminal
13
14
297-8361-550 Standard 04.01 September 2000
Replace the retaining bar.
Use an ohmmeter to test the polarity of the string. Test the polarity at the end
of the replaced battery string
Yuasa battery string connections
– +
–
Eagle–Picher battery string connections
– –
+
+
Connect the battery string installed in step 6 to the connector cable assembly.
Turn the BCC NT8X02 power switch to the ON position.
To return the battery charger controller to service, type
>RTS BCCDVR
and press the Enter key.
To return the battery strings to the load bus, type
>LOADB n
and press the Enter key.
where
n
is the string pair 0-3, as follows:
pair 0
is strings 0 and 4
pair 1
is strings 1 and 5
pair 2
is strings 2 and 6
pair 3
is strings 3 and 7
+ – + –
– –
+
+
+