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Installing the Control Unit
TYPICL AC GROUNDING
From AC
Load Center
(2 separately
fused 15 A
circuits)
Ground
(#14 AWG)
4" Box (RACO 230
or equivalent)
HUBBELL Receptacles
(5262 15 A
or equivalent)
Single-Point
Ground
Ground Bar
4" Cover
(RACO 807
or equivalent)
Mounted on a 4" Box
(Square "D" PK9GTA or
approved equivalent)
Approved
Building Ground
(#6 AWG Copper)
#12 or #14 AWG Copper
Wire to EAch Power Supply
Grounding Screw
Figure 2-1. AC Grounding Requirements
■ Each carrier requires one outlet receptacle.
■ Additional AC outlets may be required for auxiliary equipment.
■ If a printer or a PC is to be installed with the system, it must be
plugged into the same AC branch as the power supply of the basic
carrier.
If the printer or PC is 50 ft (15 m) or more from the control unit or is
plugged into a different AC circuit, asynchronous data units (ADUs)
must be installed as well. Complete installation instructions are
provided in Chapter 5.
Power and Grounding
2-7