Instruction manual

MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Installing the Control Unit
Page 2-7
AC Power and Grounding
■ Auxiliary equipment requires additional AC outlets.
■ If a printer or PC is installed on 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. Chapter 5, ‘‘
Installing the PC, CAT, or Printer’’,
includes complete installation instructions.
■ The AC power requirements indicated in “AC Outlet Tests,” on page 2-8,
must be met.
Figure 2-1. AC Grounding Requirements
Ground Bar Mounted
on a 4" Box (Square
"D" PK9GTA or
approved equivalent)
From AC
Load Center
(2 separately
fused 15 A
circuits)
Ground Wire
#14 AWG
4" Box (RACO 230
or equivalent)
HUBBELL
Receptacles
(5262 15 A
or equivalent)
4" Cover 
(RACO 807
or equivalent)
Approved
Building Ground
#12 or #14 AWG Copper
Wire to Each Power Supply
Grounding Screw
Single-Point
Ground
Ground Wire
#6 AWG Copper