Method and apparatus for data communications over local area and small area networks

摘要: A data communications network has a transmission channel wherein plurality of nodes are connected thereto according to loop topology. Each node transceiver, control switch for operating the in either pass through state, received from an upstream side is transmitted downstream channel, or source transmit state transmits its own message while monitoring side. In matches with and truncates upon recognition error message. this manner, there no requirement that destination acknowledge receipt since by transmitting most corrupted form data. The further bus contention protocol "backs off" on specific time-out duration. duration varied depending priority vis-a-vis being node. associated having higher shorter time period. determined at can be programmed into programmable, retriggerable, one-shot timing element.