Specifications

6.1.5 4-Pin Micro-fit Molex connector (Power and input/output)
Figure 6.1.1: Pin assignment of 4-Pin connector
Pin number Name
Functions
1 DIO1 Digital Input/Output (3V for input detection, 12V max.)
2 DIO2 Digital Input/Output (3V for input detection, 12V max.)
3 POWER - DC power negative input (or ground)
4 POWER + DC power positive input (5V to 32V max.)
Digital Input/Output wiring diagrams
Example of DIO1 used as input to sense a switch:
– Output needs to be open when using as an input.
– Input is high when voltage is over 3V and low when voltage is below 0.5V.
Example of DIO1 used as output to control an external relay circuit:
– Output is open collector, shorted to the ground, external power supply needs to be added in current driven
application, maximum current is 200mA.
– If used to control relay, a protection diode needs to be added in parallel of the relay coil to avoid current peak
when triggered.
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