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 electric ian. Refer to DEFINITY Enterprise Communications Server
Release 6 System Description Pocket Reference, for site requirement
information.
!CAUTION:
The power circuit must be d edicated to the system and must not be shared
with other equipment and must not b e controlled by a wall switch. The AC
receptacle should not be located und er the MDF.
!CAUTION:
System grounding must comp ly with the general rules for grounding
contained in Artic le 250 of the National Electrical Code (NEC), National Fire
Protection Agency (NFPA) 70, or the applicable elec tric cod e in the country
containing the equip ment. For more information, refer to ‘‘Approved
Grounds’’ on pag e 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-p oint ground terminal b loc k located at either the AC load
center or to a separate sing le-point ground block wired to the AC load center (or
optional AC protec tor cabinet).
■The approved ground wire must be a green (or g reen with yellow stripe), 6
AWG (#40) (16 mm2), copper, stranded wire.
■Bond all app roved grounds at the single-point g round to form a sing le
grounding elec trode system.
AC Load Center is 50 Feet (15.2 m) or Less from Cabinet
1. At the b ottom rear of the PPN cabinet, connect a 6 AWG (#40) (16 mm2)
CABINET GROUND wire to the cabinet ground terminal bloc k. See Figu re
1-1.
2. Route the CABINET GROUND wire to the single-point ground block at the
AC load center and c onnect.
3. At the b ottom rear of the first EPN cabinet (if provided), connec t a 6 AWG
(#40) (16 mm2) 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 c onnect.