Advanced Troubleshooting Procedures; Powering-Up The Opac - Nortel DMS-100 Series Maintenance Manual

Advanced troubleshooting procedures

The system displays a list of cards at the MAP terminal after the tests
complete. The card at the top of the list is often the cause of the problem.
After you replace the problem card, test the defective unit again. If the unit
passes this test, return the unit to service. The troubleshooting procedure is
complete.
If normal troubleshooting procedures do not restore a unit to service,
advanced troubleshooting procedures are required.
Operating company personnel can use MAP terminal responses from failed
troubleshooting attempts to formulate a maintenance plan. Use more
advanced step-action procedures to repair a problem.

Powering-up the OPAC

In the event of an anticipated power outage, operating company personnel
must power-down the Outside Plant Access Cabinet (OPAC). An example
of this type of power outage is an anticipated natural disaster. Operating
company personnel power-down the OPAC for the duration of the event to
minimize equipment damage. This action allows the operating company to
return power in an ordered fashion.
To power-up the OPAC, perform the following steps:
1 Post the OPAC from the MAP terminal.
2 At the remote site, set the switch on the line concentrating module
3 Hold in the reset button on the LCM power converter, and flip the
(LCM) power converter to the ON position.
appropriate circuit breaker up. Do not hold the circuit breaker up. If the
OPAC receives power, the circuit breaker stays in the ON position. If a
problem occurs with the power, the circuit breaker returns to the OFF
position.
a. Repeat steps 2 and 3 for the other LCM unit.
b. Busy both LCM units.
DMS-100 Family OPAC Maintenance Manual XPM12 and up
12-1