TERMINAL DESCRIPTION
TERMINAL DESCRIPTION
R1 House Telephone Ring.
R Telephone Ring.
T Telephone Tip.
T1 House Telephone Tip.
EARTH Earth Ground.
AC AC input. Connect to a 16.5V 35VA CE approved transformer.
BELL + & BELL - 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 3.3KW 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.
DATA Connect to the data terminal on the keypads and the expanders. Maximum wire run is
800 m with 2 mm² wire. The minimum wire sizes at 75, 150, 300 and 600 m are 0.12, 0.33,
0.83 and 1.3 mm² respectively. These numbers are for one keypad at the end of the wire
and a voltage drop of max. 2 Volts. When connecting more than one keypad to the end of
the wire, a higher gauge wire will be required. The maximum number of devices (keypads
+ expanders) is 32.
COM Connect to the Common terminal on the keypads and the expanders.
POS Connect to the positive terminal on the keypads and the expanders. This terminal is
limited to 1 Amp. Combined, this terminal and AUX PWR + are limited to 1 Amp total
current.
SMOKE+ Smoke detector power 12VDC, 1.5 Amps maximum (For those jurisdictions which allow the
Priority zone to be used with smoke detectors.)
COM Connect the negative wire of powered devices such as motion and smoke detectors.
AUX+
Connect the positive wire of all powered devices except smoke detectors and keypads.
Individually, this terminal is limited to 1 Amp. Combined, this terminal and POS are limited
to 1 Amp total current.
ZONE 8
Connect to one side of zone 8 loop. Connect the other side to the com. terminal. Open or
short causes alarm. Zone 8 may be used for a two-wire smoke detector, using a 680W
E.O.L. resistor. Connect one side to AUX+ ONLY if using 2-wire smoke. Refer to wiring
diagram, Program location 37, segment 6, option 1.
COM Common (-) terminal for zones 7 & 8. (See the wiring diagram for examples)
ZONE 7
Connect to one side of zone 7 loop. Connect the other side to COM terminal. Open or short
causes alarm.
ZONE 6 - ZONE 1
Connect as described for zones 7 & 8. Only zone 8 can be a two-wire zone. (See the wiring
diagram for examples)
Relay 2 NO Normally open dry contact rated 1 Amp at 30 Volts.
COM Common used to ground any devices connected to relays
Relay 1 SPDT SPDT contact rated 1 Amp at 30 Volts.
J7
Aux1 – Aux4
Connect negative lead of low current device [relay, LED etc. (install 1Kohm resistor in
series with LED) Connect positive lead of device to PWR+. Current is limited to 50mA when
output is negative, 250µA when output is positive.
NX-8-EUR Installation manual Page 104 02/07/06
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