User’s manual NX-4a Side 10
Technical specifications.
* Power consumption with propane detector connected, but without any external components.
To visualize the size of the power consumption, NX-4 will empty a 12V 70 Ah battery in 6 weeks if
used only at night.
Overview over all the connection points:
Connector J1 Propane sensor Connector J3 Motion detectors with positive signal
1 Red/brown +5V 1 +12V out
2 Green GND/Ground 2 GND / Ground
3 White Signal 3 Signal input, active high/positive
Connector J2 External outputs Connector J4 Motion detectors with negative signal
1 All gas detectors combined 1 +5V out
2 Propane gas separately 2 GND /Ground
3 Motion, delayed 3 Signal input, active low/negative
4 External alarm sounder Connector J6 Power input and lamp output
1 12/24V Power supply
2 GND / Ground
3 12 / 24 V output to external lamps
Operating voltage: 11-30V DC
*Power requirements: 2,4W (ca. 200mA at 12V and 100mA at 24V)
Relay output for external lamps J6 pin 3 Max 10A load
Operating temperature: 10-30 °C
External alarm outputs
Combined output for all
gas detectors
J2 pin 1 Active low. Max load approx. 0,4A each. 10k ”pull up”
resistor. Low level <=1V.
Separate output for the
propane detector
J2 pin 2 Active low. Max load approx. 0,4A each. 10k ”pull up”
resistor. Low level <=1V.
Output for delayed motion J2 pin 3 Active low. Max load approx. 0,4A each. 10k ”pull up”
resistor. Low level <=1V.
Output for extra alarm
sounder
J2 pin 4 12V approx. 10-15mA max load. Volume adjustable.
Active low analog output.
Motion detector connections:
12V output in 12V systems J3 pin 1 10-12V, max approx. 200mA load
12V output in 24V systems J3 pin 1 12V, max approx. 50mA load
5V output in
12/24Vsystems
J4 pin 1 5V, max approx. 50mA load. Current limited by a 10
ohm resistor in series.
Signal input positive J3 pin 3 3,5-30V positive signal. Approx. 20k input. imp.
Signal input negative, J4 pin 3 Active below 1,5V. Approx. 20k input. imp.
Delay time at stage 2 for the motion
detector alarm
Approx. 6-30 sec. provided the signal is constant from
detectors. Adjustable with internal potentiometer.
Dimensions (L, W, H) 143x82x38mm
Weight: 210g