
6
NX-4V2 Control
V. 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 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.
AUX1
Connect negative lead of low current device [relay, LED (install 1K
Ω
resistor in series with LED), etc.].
Connect positive lead of device to COM. Current is limited to 250mA when output is negative, and 250
F
A
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
Ω
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 powered devices such as motion detectors and smoke detectors.
SMOKE+
Smoke detector power 12VDC, 1.5 amps maximum (For those jurisdictions which allow the Priority zone to
be used with smoke detectors.)
AUX2
Connect negative lead of low current device [relay, LED (install 1K
Ω
resistor in series with LED), etc.].
Connect positive lead of device to COM. Current is limited to 250mA when output is negative, and 250
F
A
when output is positive.
DATA
Connect to the data terminal on the keypads and the expanders. Maximum number of devices: 8 k 1
other device. See
A
Maximum Wire Run
@
chart below.
COM
Connect to the Common terminal on the keypads and the expanders.
POS
Connect to the POS terminal on the keypads and the expanders. Individually, this terminal is limited to 1
Amp.
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. (See the wiring diagram for examples.)
ZONE 3
Connect to one side of zone 3 loop. Connect the other side to COM terminal. Open or short causes alarm.
ZONES 1- 2
Connect as described for zones 3 & 4
NETWORX 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-4V2
WHEN CONNECTED TO NX320-E
Length in feet
Wire Gauge
Wire Gauge
250 24
22
500 20
18
1000 18
16
1500 16
14
2500 14
12
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