Yes. Especially since they all need to connect to green we had to make it so more than one can be in one plug. Just place all the wires desired in and turn the screw to tighten the plug. On the bottom of the control board there is an area labeled for accessories. All accessories will have one wire attached to green. For safety devices use green/orange. For opening devices such as push buttons and digital keypads use green/white. For a timed device such as a timer or exit wand use green/white.