The MI-D2ICMO dual input/single output modules are used with the Morley-IAS intelligent fire alarm control panels to provide a dual input circuit from external devices and a single relay control output circuit. Each input is continuously monitored for normal, open circuit and alarm conditions. Any change in the status of the input circuits are communicated to the panel where the appropriate actions may be undertaken. A single pole volt-free changeover relay is available for control of external devices or circuits.