Installer-friendly design.
Robust metal enclosure c/w lift-off lid & heavy-duty base connections.
Ten conventional Zone circuits (expandable to 14).
Two conventional Sounder circuits.
Separate indicators for open & short circuit fault, sounder fault, and battery/power supply fault.
Non-latching class change sounder output, latching fire & non-latching fault outputs (via expansion loom).
Short circuit=fire facility (pre-1980 BS, no resistors in call points, selectable on a zone by zone basis).
Ancillary connections for repeaters & other system add-ons including fault relay modules, fire relay