Zeta Fyreye Conventional Detector Bases

The Fyreye common base is used on systems that don't need to keep line integrity on head removal, and also on addressable systems.

The Fyreye diode base is used on systems that do need line integrity on head removal.  This would include all conventional systems that mix detectors & call points on the same line.

Deep back box suitable for surface mount cable termination of cables with trunking, conduit or glands.

The Relay base is mainly used on 12V security systems to signal detector operation to the panel.  They can also be used on 24V fire systems where the activation of a particular detector requires a signal to nearby equipment (door holders for example).