Address setting means for fire detectors

摘要

A fire detector assembly comprises a base (1) and a sensor (5) adapted to fit the base. The base (1) is provided with passive means, such as pins (6) or contacts arranged in a pattern to represent an address of the detector. When the sensor (5) is fitted to the base (1), reading means in the sensor reads the address code and thereby conditions the sensor to receive appropriate signals from a control unit.