Synchronous interface between data terminal equipment and data circuit - terminating equipment employing serial binary data interchange 使用串行二進(jìn)制數(shù)據(jù)交換的數(shù)據(jù)終端設(shè)備和數(shù)據(jù)電路端接設(shè)備間的同步接口
Simple 8 - position non - synchronous interface between data terminal equipment and data circuit - terminating equipment employing serial data interchange 利用串行數(shù)據(jù)互換的數(shù)據(jù)終端設(shè)備和數(shù)據(jù)電路終接設(shè)備間的單一8位非同步接口