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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Connect Cabinets
Page 1-17Connect DC Power and Ground
1
1. Install the BU3200A Battery Interface Unit (comcode 107781502) in the
first slot of the power distribution unit. See Figure 1-6
.
NOTE:
The BIU and the rectifier modules are keyed and can only install 1
way.
2. Install the first 2 RM0850HA100 Rectifier Modules (comcode 107793796)
into the second and third slots of the power distribution unit.
3. If 2 to 3 carriers are installed in the system, install a third rectifier module
(N+1).
4. If 4 to 5 carriers are installed in the system, install a fourth rectifier module.
5. The fifth rectifier module slot is reserved for future system growth.
Connect Power
1. Have a qualified electrician connect and route wires from the AC load
center to the dedicated electrical outlet for the power distribution unit.
Connect PPN Cabinet Ground
1. Connect 1 end of a 10 AWG (#25) (6 mm
2
) wire to the ground terminal
block on the rear of the cabinet. See Figure 1-4
.
2. Route the wire to the Coupled Bonding Conductor (CBC), or to an
approved ground, and connect.
3. Connect 1 end of a 6 AWG (#40) (16 mm
2
) CABINET GROUND wire to the
ground terminal block at the rear of the cabinet.
4. Route the CABINET GROUND wire to the AC load center single-point
ground block and connect.
Connect EPN Cabinet Ground(s)
1. Connect 1 end of a 6 AWG (#40) (16 mm
2
) CABINET GROUND wire to the
ground terminal block at the bottom rear of the EPN cabinet. See Figure
1-2.
2. Route the CABINET GROUND wire to the AC load center single-point
ground and connect.
3. Connect each remaining EPN cabinet to the AC load center single-point
ground.