The family of fire detection panels consist of 3 types (2, 4 and 6 zone) with identical operation and indications. BS-1636 is a 6 zone fire detection panel which have 2 independent siren outputs, Alarm, Fault Relay and a programmable AUX relay. The required batteries for the panels are two A-920 (12V/2.6Ah). All functions and indications are according to European Norms EN 54-2 and EN 54-4.