CADDX NX540 Manuel d'installation télécharger pdf (Page 37)

NX-4 Control

Page 37

TERMINAL DESCRIPTIONS

TERMINAL

DESCRIPTION

R1 House Telephone Ring (Grey).

R Telephone Ring (Red).

T Telephone Tip (Green).

T1 House Telephone Tip (Brown).

AC AC input. Connect to a 16.5V 25, 40 or 50 VA Class ll U.L. approved transformer.

EARTH Earth Ground. Connect to a cold water pipe or a 6 to 10 foot driven rod.

AUX 1

Connect negative lead of low current device [relay, LED (install 1K resistor in series with LED), etc.].

Connect positive lead of device to KEYPAD +. Current is limited to 250mA when output is negative, and

250FA when output is positive.

SIREN

If used as a siren output (default), the speaker rating should be 15 watt at 8 or 16 ohm, or 30/40 watt

at 4, 8, or 16 ohms. If voltage output is selected in location 37, this output becomes voltage output,

12VDC, 1 Amp maximum load. NOTE: A 3.3K resistor may be required across the bell terminals

when a 12 VDC siren is used. If no resistor is used, you may experience voltage leakage into

the siren, which will cause these devices to output a small signal.

COM Connect negative wire of siren/speaker or voltage output devices.

SMOKE+

Smoke detector power 12VDC, 250 mA maximum (For those jurisdictions which allow the Priority zone

to be used with smoke detectors.)

AUX 2

Connect negative lead of low current device [relay, LED (install 1K resistor in series with LED), etc.].

Connect positive lead of device to KEYPAD +. Current is limited to 250mA when output is negative, and

250FA when output is positive.

KEYPAD

DATA

Connect to the data terminal on the keypads and the expanders. MAXIMUM: 8 keypads + 1 other

device.

COM

AUX PWR -

Connect to the Common terminal on the keypads, expanders, and other power devices.

POS

AUX PWR

Connect to the Positive terminal on the keypads, expanders, and other power devices. This terminal

is limited to 1 amp total current.

ZONE 4

Connect to one side of zone 4 loop. Connect the other side to com terminal. Open or short causes alarm.

COM Common (-) terminal for zones 3 & 4.

ZONE 3

Connect to one side of zone 3 loop. Connect the other side to com terminal. Open or short causes alarm.

ZONE 2

Connect to one side of zone 2 loop. Connect the other side to com terminal. Open or short causes alarm.

COM Common (-) terminal for zones 1 & 2.

ZONE 1

Connect to one side of zone 1 loop. Connect the other side to com terminal. Open or short causes alarm.

KEYPAD MAXIMUM WIRE RUN

(Note: These numbers are for one keypad at the end of the wire. When connecting more than one keypad to the end

of the wire, a higher gauge wire will be required.)

WHEN CONNECTED TO NX-4 WHEN CONNECTED TO NX-320

Length in feet Wire Gauge Wire Gauge

250 24 22

500 20 18

1000 18 16

1500 16 14

2500 14 12

1 2 ... 32 33 34 35 36 37 38 39 40 41 42

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CADDX NX540 Manuel d'installation Page 37

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