Nortel DMS-100 Series Maintenance Manual page 676

13-28 Routine maintenance procedures
Discharge test failure Discharge test failure
OPAC OPAC
(continued) (end)
Discharge test failure
At the MAP terminal
1
2
3
4
5
6
7
297-8211-550 Standard 05.01 August 1999
To access the OPMPES MAP display level, type
>MAPCI;MTC;PM;PES
and press the Enter key.
To post the appropriate alarm state, type
>POST alarm_state
and press the Enter key.
where
alarm_state is RED, AMBER, GREEN, or OFFL
Note: This command posts the peripheral modules (PM) in the named alarm
state and displays the first PM in the set. Use the NEXT command to scroll
through the posted PMs until the MAP terminal displays the appropriate OPAC.
To disable the automatic battery rotation and testing, type
>AUDIT DISABLE
and press the Enter key.
From log report PES117, determine which battery string voltage tests below
OPM_VOLT_TST_DIS. If strings 1 and 5 are marked as failures, determine if
string 1, 5, or both, cause the alarm.
The OPACs with multiline test units (MTU): Default OPM_VOLT_TST_DIS =
–495 or –49.5 Vdc.
To open the circuit to the failed battery string pair, type
>OPENCKT n
and press the Enter key.
where
n is the number of the string pair (0–3)
Note: The string pairs consist of the following groups:
Pair 0 consists of strings 0 and 4.
Pair 1 consists of strings 1 and 5.
Pair 2 consists of strings 2 and 6.
Pair 3 is not used.
Perform the site test procedure.
The procedure is complete.