The addressable Control Modules FI700/MM1OUT and FI700/MM1REL serve for the actuation of external devices via a loop with Labor Strauss protocol. In this way fire doors, sirens or solenoid valves can be easily integrated into loop-based fire detection systems. The bi-directional communication on the loop allows for a fast actuation of the output and an accurate evaluation of the status of the module. An integrated dual-isolator disconnects the loop in case of a short circuit. In this way, the undisturbed communication with the loop elements outside the faulty loop section is ensured. The Control Module FI700/MM1OUT provides one output with line-monitoring for wire breakage and short circuit and a maximum load current of 2A. An external power supply is required for the supply of the connected load device. The Control Module FI700/MM1REL comprises a dual dry change-over contact. The potential-free contacts can be used to activate ancillary devices without monitoring of the cabling. The modules are equipped with a bi-colour status LED that indicates the activated condition of the output in green colour and the fault condition in yellow. The module address can be set by means of the Programming Unit FI750/PU within the range 1 to 240. In addition, the programming unit allows for the reading-out of several parameters, such as the default analogue value or the production date. Alternatively, the module can be addressed automatically if it is connected to a compatible fire detection control panel. The modules are designed for mounting in a switch cabinet, on a mounting plate or inside the housing of the ancillary device.