WIRELESS COMPONENT OF A FIRE RESISTANT HOLDING INSTALLATION OR A FIRE ALARM SYSTEM

摘要

A wireless component (10) of a fire detection system (100) or fire alarm system has a first message issuing device (12) and a radio interface (13, 14) with an antenna (14) for emitting electromagnetic signals to which the first message is encoded , The antenna (14) has a conductor structure (14) carried by a substrate (11) with a supply point (14a) for supplying or picking up a signal voltage and therefrom two conductor regions (14b, 14d), the first one (14d) at another Point (14 e) is grounded and the second (14 b) at its other end (14 c) is open and at least partially opposite a ground line (13).