Aico RadioLINK Panel Interface Module that provides an interface between RadioLINK alarms and accessories and fire alarm/security alarm panels. The module will decode a fire, carbon monoxide and fault signals from RadioLINK devices and activate the panel accordingly and will also work the other way, activating the domestic alarms if it receives a signal from the panel. The module is powered either directly from the panel system or from an external source. On receiving a Volt-free switched hardwired signal from the panel, the module will transmit a RadioLINK alarm signal to activate the alarms in the system. If a fire alarm has activated, the module will recognise the signal as a fire and switch the relevant contacts to activate the panel. If a carbon monoxide alarm has activated, the module will recognise the signal as a carbon monoxide leak and switch the relevant contacts to activate the panel.