The RS-485 interface repeater is designed for: lengthening the RS-485 communication line, for galvanic separation of its sections (segments); increasing the number of devices on the line. It can be used as a part of traffic light signalling complex "KSS-ISET" (traffic light regulation by passage sequence), and also as a part of positioning system for miners and transport SPGT-41 with extended functions of timekeeping, collision prevention and access control, accounting of mine transport operation, high-speed data transmission, mobile radio communication and video surveillance, in other systems compatible with it in terms of electrical parameters. Repeater IP20 in the hazardous area, in the conditions of mine workings of mines and mines, must be installed in a junction box designed for placement in the hazardous area with a degree of protection IP, corresponding to the category of the room.
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