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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 1-8Connect AC Power and Ground
1
!
CAUTION:
The equipment room AC power and ground wiring must be performed by a
qualified electrician. Refer to DEFINITY Enterprise Communications Server
Release 6 System Description Pocket Reference, for site requirement
information.
!
CAUTION:
The power circuit must be dedicated to the system and must not be shared
with other equipment and must not be controlled by a wall switch. The AC
receptacle should not be located under the MDF.
!
CAUTION:
System grounding must comply with the general rules for grounding
contained in Article 250 of the National Electrical Code (NEC), National Fire
Protection Agency (NFPA) 70, or the applicable electric code in the country
containing the equipment. For more information, refer to ‘‘
Approved
Grounds’’ on page 1-23.
Connect Ground to AC-Powered System
(J58890CE)
Grounding is relatively simple for an AC-powered system. Basically, the cabinets
connect to the single-point ground terminal block located at either the AC load
center or to a separate single-point ground block wired to the AC load center (or
optional AC protector cabinet).
■ The approved ground wire must be a green (or green with yellow stripe), 6
AWG (#40) (16 mm
2
), copper, stranded wire.
■ Bond all approved grounds at the single-point ground to form a single
grounding electrode system.
AC Load Center is 50 Feet (15.2 m) or Less from
Cabinet
1. At the bottom rear of the PPN cabinet, connect a 6 AWG (#40) (16 mm
2
)
CABINET GROUND wire to the cabinet ground terminal block. See Figure
1-1.
2. Route the CABINET GROUND wire to the single-point ground block at the
AC load center and connect.
3. At the bottom rear of the first EPN cabinet (if provided), connect a 6 AWG
(#40) (16 mm
2
) CABINET GROUND wire to the cabinet ground terminal
block.
4. Route the CABINET GROUND wire to the single-point ground block at the
AC load center and connect.