Honeywell VISTA-20P User Manual download pdf (Page 16)

Installing a Keyswitch

Keyswitch Connections

GREEN

RED

1. Connect the 4146 keyswitch's normally open momentary switch to a zone’s (2-8)

terminals. Remove the 2000 ohm EOL resistor if connected across the selected zone.

2. Using a standard keypad cable as shown:

Connect the yellow and white keyswitch wires to trigger connector pin 3 (+12V).

Connect the Red and Green LED wires to the appropriate output 17/output 18

trigger connector pins.

3. Connect a 2000 ohm EOL resistor across the momentary switch.

4. You can wire an optional closed-circuit tamper switch (model 112) in series with the

zone. If the switchplate is then removed from the wall, the tamper will open,

disabling keyswitch operation until the system is next disarmed from the keypad.

If the tamper is opened when the system is armed, an alarm will occur.

4146 KEYSWITCH

(READY)

GREEN

LOCK

SWITCH (N. O.)

TAMPER

SWITCH (N. C.)

(ARMED)

RED

YELLOW

WHITE

EOLR

(use appropriate value)

TYPICAL ZONE

ON CONTROL

BOARD

BROWN

BLUE

BROWN

BLUE

820

ohms

820

ohms

00-trigcon-004-V1

1345678

STANDARD

KEYPAD

CABLE

8-PIN TRIGGER CONNECTOR

KEY

+12 AUX.

OUTPUT 17

OUTPUT 18

(RED)

(YELLOW)

(GREEN)

RED

BLACK

Figure 12. Keyswitch Wiring Connections

Keyswitch Notes

A UL Listed keyswitch is required for fire installations and UL commercial and residential

burglar alarm installations. The Ademco 4146 keyswitch is UL Listed.

If a keyswitch is used on:

• an installation that transmits opening and closing signals, the keyswitch zone must be programmed

to send opening and closing signals.

• a UL commercial burglar alarm installation, the keyswitch’s tamper switch must be connected in to

the alarm system. This tamper switch zone must also be programmed for Zone Type 05 – Trouble

by Day / Alarm by Night.

• a fire alarm installation, the keyswitch must be located next to an alphanumeric display keypad.

• Use 4146 keyswitch or any N.O. keyswitch.

• Use only one keyswitch per partition.

• When using a keyswitch, the zone it is connected to is no longer available for use as a

protective zone.

• Use *56 Menu mode to program the keyswitch zone and assign it zone type 77.

• Use *80 Menu mode to program the LED functions: program outputs 17 and 18 for

system operation zone type 78 (red LED) and 79 (green LED) as appropriate (see

Output Device Programming section).

Installation and Setup Guide

2-10

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 79 80

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Honeywell VISTA-20P User Manual Page 16

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