The bases have been designed to enable detectors to be plugged in without any need for force and have a "one way only" fit. The standard base contains no electronic...
The Series 65 Sav-Wire Base is designed to allow Series 65 detectors to be used in 'Sav-Wire' detection and alarm systems.
The Series 65 12V Relay Base is designed for use in both fire and security systems. For fire systems a jumper on the PCB is fitted to a 'latching' position....
The Series 65 Auxiliary Relay Base provides two sets of volt-free changeover contacts to facilitate the switching of a remote LED or other auxiliary device.
The Series 65 Standard Relay Base provides one set of volt-free changeover (from C) contacts that change state when the detector signals an alarm.