Circuit arrangement for the crosslinking of fire alarm central (bmz), fire - display panel (fat) and fire services - control panels (fbf) and equipped with such fire alarm central

摘要

Circuit arrangement for the crosslinking of fire alarm central (bmz) with different communications protocols,Fire department - control panels (fbf) according to din 14661 and fire services - display panel (fat) according to din 14662,the circuit arrangement by means of a network adapter (1) is formed, which– on the one hand with a desired serial interface (2),– an interface for voltage supply (3)– and a parallel - are connected in series - transducer (11), and a serially - parallel - transducer (12) is provided,wherein said serial interface (2) and the transducers (11, 12) with a microcontroller (5), which the respective special protocol of the fire alarm centre (bmz) decoded and goes further,the a flash memory (6) for program code and configuration data and a ram - memory (7) for current status data, are associated with the program variable and history,are connectedand, on the other hand, on the microcontroller (5)– two galvanically separated, redundant design serial interfaces (9) and– two redundant design power supplies (u_B1, U_B2) for a - and / or uncoupling of this into a serial ring bus (16) are provided.