Emerson user manual 1.5Outside Enclosure Overview, AC8 enclosure-externalfeatures

Introduction

1.5Outside Enclosure Overview

The AC8’s controller board comes in an enclosure that is 2-3/4" deep and has a built-in liquid crystal display (LCD) and a key lock, as shown in Figure 1. The enclosure is made of metal to accommodate secure conduit fittings and protect components against environmental debris.

Figure 1 AC8 enclosure—external features

	LCD for configuration
	and operation
The enclosure
has knockouts
and access slots
on top and	Key lock
bottom for
cables and wires.

The enclosure houses the controller board and Transformer Module, as shown in Figure 2.

The enclosure must be secured to a wall, either flush-mounted or recessed in the wall, as described in

2.0- Installation. Knockouts and access slots on the top and bottom allow easy connection of wires and cables (see 3.0 - Wiring and Connections) with either mounting type.

Figure 2 AC8 enclosure—internal features

Transformer Module

Back of LCD

Controller Board

TB5: COMMON ALARM
(TERMINAL BLOCKS ROTATED IN VIEW)
NO C NC	NO C NC
(TOP)	(BOTTOM)
TB7:
24V INPUT

BAR CODE LIEBERT

TB3:

RELAY

OUTPUTS

(BOTTOM))

	(TOP)
	8
	4
	7
	3
	6
	2
	5
	1
REV	(BOTTOM))
	(TOP)
	8
	4
	7
	3
	6
	2
	5
	1
ASS	TB2:
	CONTACT
	INPUTS
MODEM

J11: PHONE	0: COMMS			ALL CIRCUITS;
PIN 3-TIP		+ —		CLASS 2
PIN 4-RI"N"G	(TOP)		+ — + —
ON		485		TB9: ANALOG
	(BOTTOM) + —		+ — + —	GROUND

On/Off switch			Knockouts and
			access slots
for Transformer	Ground wire	Power receptacle	(top and bottom)
Module	for LCD
		(115VAC model only)

2