Honeywell MS-2 User Manual download pdf (Page 25)

Installation of Optional Modules Installation

MS-2/MS-4 PN 51512:E 01/18/05 25

2.6 Installation of Optional Modules

CAUTION: Remove all power (AC and DC) before installing or removing modules or

wiring.

2.6.1 CAC-4 Class A Converter Module (MS-4 only)

2.6.1.1 Installation

The CAC-4 Module can be used to convert the four Style B (Class B) Initiating

Device Circuits to Style D (Class A) and the two Style Y (Class B) Notification

Appliance Circuits to Style Z (Class A). The module plugs into connector J1 which

is located at the top right of the MS-4 main circuit board.

Install the three supplied standoffs in the holes on the main circuit board as

indicated in the following figure. Carefully align the connector on the CAC-4 with

J1 on the FACP main circuit board and press the module securely into place. Make

certain the pins are properly aligned to prevent bending or breaking of any

connector pins.

TB1

TB2

TB3

TB5

TB6

TB7

B+ B- B+ B-

NAC 1 NAC 2

+ - + -

Nonreset Reset

B+ B- B+ B-

ZONE 1 ZONE 2

B+ B- B+ B-

ZONE 3 ZONE 4

C TRBL NORM

TROUBLE

C NC NO

ALARM SUPV

C NC NO

CLASS A

CONVERTER

TB1

A+ A- A+ A-

NAC 1 NAC 2

CLASS A CLASS A

A+ A- A+ A-

ZONE 1 ZONE 2

CLASS A CLASS A

A+ A- A+ A-

ZONE 3 ZONE 4

CLASS A CLASS A

JP3

Figure 2.10 CAC-4 Module Installation

J1 Connector

MS-4 Main Circuit Board

Secure to Standoffs

Secure to Standoff

CAC-4 Module

ms4tocac.cdr

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Honeywell MS-2 User Manual Page 25

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