FXN520 is a Standard Base, has been specifically designed to be compatible with the JSB range of conventional detectors. This standard base has been designed for flexibility, simplicity and speed of installation. It incorporates purpose designed devices to provide fault warning if detector is removed while maintaining full zone wiring integrity. The base has a Schottky diode in series with the negative terminals to enable fault monitoring and allow the circuit to continue if a detector is removed.

• · Separate zone in and zone out terminals
• · Stand off fixing feature
• · Selectable detector locking