The Card Reader Interface Expansion Card provides additional control of up to 2 doors. It includes built-in dual Wiegand reader support for IN/OUT readers on the door and has 2 relay outputs. There is also 2 additional digital or analog inputs which are software configurable and can be used for break glass and door contact functions. Wiegand inputs can be software programmed to have a pullup resistor for situations where the Wiegand inputs are driven by a voltage.