Avaya MCC1 Installation And Upgrades page 351

6
Connect the -48 volt RTN wire to the -48RTN terminal on the J58890CF Power Distribution Unit
terminal block.
7
Repeat Steps 2 through 6 for each EPN and Auxiliary cabinet in the system.
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Connect DC Battery Cabinet to DC Power Cabinet
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NOTE:
The wire in the next step must be sized for a maximum voltage drop of 0.5 VDC in each
leg of the DC distribution. In this example 1 AWG is used.
1
Turn off the main circuit breaker on the DC Battery Cabinet.
2
Turn off the main circuit breaker on the DC Power Cabinet.
3
Measure and cut a 6 AWG (#40) (16 mm
Cabinet's -48 Volt DC terminal to a DC OUTPUT distribution bus on the DC Power Cabinet.
4
At the DC Battery Cabinet, connect the -48 volt DC wire to the -48 VDC connector.
5
Route the wire out of the cabinet through the hole in the lower rear cover and to the DC Power
Cabinet.
6
At the DC Power Cabinet, terminate the -48 volt DC wire on a DC OUTPUT distribution bus.
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Connect Mixed AC/DC Power and Ground
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Figure 100, Typical Power and Ground for a Mixed AC/DC-Powered Cabinet,
power and ground layout for a mixed AC/DC-powered cabinet configuration in the same equipment
room with the PPN being DC powered and the EPN being AC powered. If a second EPN is part of the
system, use the same basic connections.
SI Installation and Upgrades
June 2004
Install and Connect MCC1 (Multicarrier) Cabinet
Task List: Connect DC Power and Ground
2
) wire long enough to reach from the DC Battery
on page 352 shows a
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