The TwinflexPro² panel is an intelligent 2-wire panel that utilises a conventional type cabling format. The system is classed as Analogue non- addressable due to the architecture used within the design. The devices communicate with the control panel using the Twinflex data protocol. The TwinflexPro² panel is available in 2,4 & 8 zone variants which support up to 32 Twinflex devices per circuit. The TwinflexPro² is able to recognise and separately identify between smoke detector, heat detector and a manual call point alarm. The panel also monitors each zone for detector head removal, device fault, End of line fault and open or short circuit fault. The panel provides two monitored outputs that may be configured as conventional sounder circuits, a volt free common fire relay and a volt free common fault relay. There are also two multifunction latching/non-latching inputs and one monitored input programmable with options such as Class-Change and Remote fire. The control panel also incorporates an integral powersupply unit and requires 2 x 12V 3.3Ah batteries .