SET OF EQUIPMENT FOR AUTOMATIC TEPEPHONE EXCHANGE FOR SAFETY-FIRE ALARM SYSTEM Russian patent published in 2003 - IPC

FIELD: systems for safety-fire alarm, possibly data transmission from user equipment sets to station for centralized supervision in apparatuses for centralized protection of property and for fire warning in objects distributed through busy telephone and optical fiber communication lines. SUBSTANCE: set of equipment includes in addition group of access devices and group of retransmitters with group of access devices. Each device has local network controller, microprocessor unit for transforming interfaces and linear matching unit, automatic telephone exchange with standard MKKTT G.703. EFFECT: possibility for working with equipment of any modern electronic automatic telephone exchanges mutually connected through optical-fiber communication lines, enlarged zone of protecting objects by means of each centralized supervision station in operational zone of automatic telephone exchanges having no direct copper telephone communication lines with centralized supervision station, possibility for organizing any structure of global communication network in equipment set of automatic telephone exchange of fire alarm system between local communication networks. 3 dwg