The SK-RELAYMON-2 multi output-input module is intended for use in intelligent, two-wire systems, where the individual address of each module is selected using the built-in rotary decade switches. It is capable of replacing two individual relay control modules and two Class B monitor modules. Each relay output is intended for Form C switching applications which do not require wiring supervision for the load circuit. Each monitor input is intended to interface between a fire alarm control panel and one or more devices. Each relay output has its own green LED. Each monitored input has its own bicolor LED, which can be controlled by the control panel.