Lucent Technologies Release 6 manual Connect DC Power to PPN and EPN Cabinets

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
1 Install and Connect Cabinets
Connect DC Power and Ground	Page 1-21

7.Connect DC Power to PPN and EPN Cabinets

1.Be sure the main circuit breaker is OFF.

2.Measure and cut a piece of 6 AWG (#40) (16 mm2) wire long enough to reach from the DC Power Cabinet to the PPN cabinet.

3.At the DC Power Cabinet, connect the -48 volt DC wire to the DC OUTPUT circuit breaker. See Figure 1-7. Connect the -48 volt RTN (return) wire to the ground discharge bar.

4.Route the wires out of the cabinet, through the hole in the lower rear cover, and to the PPN cabinet.

5.Connect the -48 volt DC wire to the -48VDC terminal on the J58890CF Power Distribution Unit.

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.

8.Connect DC Battery Cabinet to DC Power Cabinet

! CAUTION:

When using battery backup, each cabinet in the system must have a dedicated battery backup. The battery backup power cannot be shared between cabinets.

1.Set the main circuit breaker on the DC Battery Cabinet and the DC Power Cabinet to OFF.

2.Measure and cut a 6 AWG (#40) (16 mm2) wire long enough to reach from the DC Battery Cabinet’s -48 Volt DC terminal to a DC OUTPUT circuit breaker on the DC Power Cabinet.

3.At the DC Battery Cabinet, connect the -48 volt DC wire to the -48 VDC connector. Connect the -48 volt RTN wire to the ground connection terminal.

4.Route the wires out of the cabinet through the hole in the lower rear cover and to the DC Power Cabinet.

5.At the DC Power Cabinet, terminate the -48 volt DC wire on a DC OUTPUT circuit breaker. Terminate the -48 volt RTN (return) wire on the ground discharge bar.