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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-21AC Power and Ground
1
Install Coupled Bonding Conductor
The Coupled Bonding Conductor (CBC) provides for mutual inductance coupling
between the CBC and the telephone cables that are exposed to lightning. The
conductor can be a 10 AWG (#25) (6 mm
2
) wire tie wrapped to the exposed
cables, a metal cable shield around the exposed cables, or 6 spare pairs from
the exposed cable.
In a high rise building, connect the CBC to an approved building ground on each
floor. To provide the coupled bonding protection:
1. Connect 1 end of the conductor to a telephone cable building entrance
protector ground that is connected to an approved ground.
2. Route the rest of the conductor next to the exposed telephone cables
being protected until they reach the cross-connect nearest to the
telephone system.
3. Position the non-exposed telephone cables at least 12 inches (30.5 cm)
away from exposed telephone cables whenever possible.
4. Terminate the other end to the single-point ground block provided for the
telephone system.
Connect and Route Cabinet AC Power Cords
!
CAUTION:
The AC power cords may connect to a properly rated power distribution
unit, individual AC power receptacles, or to a UPS. See Figure 1-12
.
1. Be sure the circuit breakers at the AC load center are
OFF
.
2. Connect Cabinet A to an “unswitched” or “always on” electrical outlet.