The IQ611MM Input Module is designed to be inserted into a single gang utility box next to the dry contact device that it is monitoring. The IQ611MM input module monitors a single contact. The input line is monitored for open line faults and ground faults, and the contact must thus be wired with an end-of-line resistor. It is an intelligent addressable module and takes one address on the Signaling Line Circuit (SLC) or Data Communication Link (DCL) of the fire alarm control panel. The IQ611MM is a UL listed device according to UL864 for Fire Protective Signaling Systems for indoor use. The type of input contact is configurable. A remote red LED indicator is used to show the module’s status.