AT&T Release 2.0 manual AC Grounding Requirements

Installing the Control Unit

	TYPICL AC GROUNDING
From AC
Load Center
(2 separately
fused 15 A	Ground
circuits)
	(#14 AWG)
	4" Box (RACO 230
	or equivalent)
HUBBELL Receptacles
(5262 15 A
or equivalent)

Single-Point

Ground
Ground Bar	4" Cover
	(RACO 807
Mounted on a 4" Box
	or equivalent)
(Square "D" PK9GTA or
	Approved
approved equivalent)
	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