Avaya MCC1 Installation And Upgrades page 349

Connect AC Power to DC Power Cabinet
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This procedure applies to both the Processor Port Networks (PPN) and Expansion Port Networks (EPN).
CAUTION:
Power is present in the cabinet even if the AC power cable is unplugged. Turn off the main
circuit breaker on the front of the cabinet when procedures require ALL power to be
removed from the cabinet.
1
Ensure the associated circuit breakers at the AC power panel are OFF.
2
Have an electrician connect AC power leads to the rectifiers using the instructions provided with
the rectifiers in the DC Power Cabinet. Each rectifier should have its own branch circuit.
Terminate leads on the AC INPUT terminal block of each rectifier.
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Connect Ground Wires for DC-Powered Systems
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CAUTION:
Do not connect any ground wires from an EPN cabinet to another EPN cabinet or to a PPN
cabinet. All ground wires must be terminated at the single-point ground block at the main
AC supply (AC mains).
1
Connect a 6 AWG (#40) (16 mm
2
Route the wire to the AC mains single-point ground block and connect.
3
Connect a 6 AWG (#40) (16 mm
4
Route the wire(s) to the AC mains single-point ground block and connect.
5
Connect a 6 AWG (#40) wire to the DC battery cabinet and DC power cabinet.
6
Route wires to the AC mains single point ground block and connect them.
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Turn Circuit Breakers Off
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The main circuit breaker on a DC-powered PPN/EPN cabinet is located on the front of the power
distribution unit. The circuit breakers on the rear of the power distribution unit control the individual
carriers. See Figure 99, Power Distribution Unit (J58890CH),
breakers.
1
Set the main circuit breaker to OFF.
SI Installation and Upgrades
June 2004
Install and Connect MCC1 (Multicarrier) Cabinet
Task List: Connect DC Power and Ground
2
) wire to the PPN cabinet ground terminal block.
2
) wire to each EPN's cabinet ground terminal block.
on page 350 for the location of the carrier
349