Features:
* 4 contact closure inputs with programmable pull-up resistor
* 4 analog inputs, 0-5V range, 12 bit resolution, programmable pull-up (can be used as contact closure inputs as well)
* Contact closure inputs also support use as Wiegand reader interface
* 4 open collector (digital) outputs, current limited
* 2 relay outputs, switching up to 240VAC, 5Amp