COMPUTER-TO-MULTIDROP-LINE INTERFACE Russian patent published in 1995 - IPC

FIELD: telemechanics. SUBSTANCE: common communication line used for message exchange is connected to controller that has marker detection and access units, receiver, transmitter, coding and decoding units, receiving and transmitting store units, clock generator, synchronizing and reference-freuqency units, communication adapter and command and status register, system interface and user computer units. Decoders of sync signal character combinations, start and end of message, acknowledgement signal, decoders of zero states of reversing counters controlling operation of first and second reversing counters whose outputs are connected via AND gate and INHIBIT circuit to inputs of command register, first and second flip-flops are all connected to data channels of controller. EFFECT: reduced time of multiaddress message transmission. 3 dwg