Nt8D56Aa, Nt8D56Ac, Nt8D57 Module Power Distribution Unit - Nortel Meridian 1 Hardware Replacement Manual

NT8D56AA, NT8D56AC, NT8D57 Module
Power Distribution Unit
5 Connect wiring to the right side of the field wiring terminal.
6 Position the field wiring access plate over the three mounting screws.
Tighten the screws.
7 Turn on power at the distribution box or plug in the power cable.
8 Set the main circuit breaker to ON (up).
9 Replace the pedestal grill.
10 Tag defective equipment with a description of the problem and
package it for return to a repair center.
Use this procedure to replace the following module power distribution units
(MPDUs):
• NT8D56AA single-breaker MPDU for the NT8D29 CE Power
Supply AC
• NT8D56AC single-breaker MPDU for the NT7D14 CE/PE Power
Supply AC
• NT8D57 dual-breaker MPDU for the NT8D06 PE Power Supply AC and
NT8D21 Ringing Generator AC
DANGER
Module covers are not hinged; do not let go of the
cover. Lift the cover away from the module and set it
out of your work area.
Replacing equipment
Hardware Replacement
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