EIA(EIA-232 – Serial Communications Protocol using three or more signal lines, intended for short distances. Also referred to as RS-232. EIA-485 Serial Communications Protocol requiring only two signal lines. Can allow up to 32 devices to be connected together in a daisy-chained fashion. Also referred to as RS-485. omel-la)
connection-oriented protocol(данные транспортного уровня передаются непрерывным потоком с установлением сквозного соединения (end-to-end connection) перед их отправкой; пример – TCP . Syn: connection-based protocol , stream-oriented protocol ssn)