标准号:SIS SS 63 62 30-1982
中文标准名称:数据通信.25针DTE /DCE接口连接器和引脚分配
英文标准名称:Data communication - 25-pin DTE/DCE interface connector and pin assignments
发布日期:1982/9/15 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This International Standard specifies the 25-pin connector and the assignment of connector pin numbers at the interface bet-ween data terminal equipment (DTE) and data circuit-terminating equipment (DCE) or automatic calling equipment (ACE). It is applicable to voice band modems, public data net-work (PND) facilities, telegraph signal converters, and automatic calling equipment where CCITT1* Recommenda-tions V.24 and V.28 are applicable.In the case of the PDN attachment through the X.20 interface, the functions of the interchange circuits are in accordance with CCITT Recommendation X.24.In the case of the V.20 type outstation interface, the electrical characteristics are in accordance with CCITT Recommenda-tion V.31.