PROGRAMMABLE AND EXPANDABLE BUILDING AUTOMATION AND CONTROL SYSTEM

摘要

A programmable and expandable building automation and control system (10)includes a system platform supports interchangeable smart card (12), security card (22), power supply card (24), telephone/voice/modem card (26), HVAC relay control (62), auxiliary relay control (66), power (80), telephone interface (30), sensor analog inputs (32), smoke detector interface (54), siren/strobe output (80), tamper loop (52), protected peripheral power supply (72), switched peripheral power supply (74), PLC communication protocol interface (18), RS 232 communication interface (14), RS 485 communication interface (16), touchscreen user interface (28), and 'smart' key interface (34) via 'smart' key (104). In addition to touchscreen and smart key interface, user-interface with system (10) is accommodated via telephone, personal computer or personal digital assistant, or through infrared or radio frequency transmission.