ADEMCO Symphony 8142 Setup Guide download pdf (Page 20)

Installation and Setup Guide

2-14

Installing a Keyswitch

1. Connect the 4146 keyswitch's normally open

momentary switch to a zone’s terminals

(zones 2-8). 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 switch plate 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.

Notes

• Use 4146 keyswitch or any normally open

keyswitch.

• Use only one keyswitch per partition.

• If using a keyswitch in more than one partition,

you must use relays (not the on-board triggers)

for the Red/Green LED functions (step 2).

• 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).

4146 KEYSWITCH

(READY)

GREEN

LOCK

SWITCH (N. O.)

TAMPER

SWITCH (N. C.)

(ARMED)

RED

YELLOW

WHITE

EOLR

(use appropriate value)

11

10

TYPICAL ZONE

ON CONTROL

BOARD

BROWN

BLUE

BROWN

BLUE

820

ohms

820

ohms

00-trigcon-004-V2

1345678

4-WIRE

CABLE

8-PIN TRIGGER CONNECTOR

KEY

+12 AUX.

OUTPUT 17

OUTPUT 18

(RED)

(YELLOW)

(GREEN)

RED

BLACK

Figure 9. Keyswitch Wiring Connections

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 111 112

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