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12_ Installation and External Connection
installation and external connection
BYPASS DIODE CONNECTION
If you connected an inductor (door locks or alarm device) to the output relay, there should occur a voltage surge while the
inductor is turning on and off. If you do not connect a reverse diode to the relay, the surge voltage will cause damage to the
electric circuit of the controller. To reduce this surge, it is recommended to connect a reverse diode between the devices.
I/O CONNECTION
Input Connection
Connect the DC 12V(+) of the power supply unit to the red line.
Connect the GND(-) of the power supply unit to the black line.
- Exit Button Connection
Connect one line of the Exit button to the orange line.
Connect the other line of the Exit button to GND.
- Door Contact Sensor Connection
Connect one line of the door contact sensor to the yellow with red stripes.
Connect the other line of the door contact sensor to GND.
- Auxiliary Input Device Connection (AUX 1 (green), AUX 2 (green with white stripes), AUX 3 (green with red
stripes)
Connect one line of the external input device to AUX 1, AUX 2, or AUX 3.
Connect the other line of the external input device to GND(-).
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DC-
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Door Contact Sensor: Green with red stripes, GND
Exit Button: Orange line, GND
DC + 12V
Power Supply
Black-
Red+
Door Contact Sensor
Exit Button