The RCM-4 is equipped with four individually addressable relays. Built-in Ethernet enables the convenience of control from an RTI XP series control processor via the LAN. An IR input allows the RCM-4 to be triggered from many different sources, including RTI in-wall controllers, control processors or third-party infrared repeater systems. Commands trigger open and close functions as well as adjustable hold times for momentary relay operation. The RCM-4 can be powered from the included power supply or PoE.