The IQ Panel contains 2 Hardwired Inputs, labeled HW1 and HW2., + and -. These inputs are designed to support Door/window contacts, motion detectors, or glass-breaks ONLY. If using a motion or glass-break, you must have an external power supply. The resister must be 4.7k Ohms ONLY. The inputs are normally open and require a 4.7k resister in series. The resisters are NOT included in the box with the IQ Panel and must be purchased separately.