標準號：SIS SS 63 62 30-1982
中文標準名稱：數據通信．25針DTE /DCE接口連接器和引腳分配
英文標準名稱：Data communication - 25-pin DTE/DCE interface connector and pin assignments
發布日期：1982/9/15 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：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.