SIS SS-ISO 2110-1990 信息技术．数据通信25极DTE/DCE接口连接器和触点号码分派

标准号：SIS SS-ISO 2110-1990
中文标准名称：信息技术．数据通信25*DTE/DCE接口连接器和触点号码分派
英文标准名称：Information technology — Data communication — 25-pole DTE/DCE nterface connector and contact number assignments
发布日期：1990/6/6 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This International Standard specifies the 25-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) or parallel automatic calling equipment (ACE). It is applicable to voice band modems, public data net-work (PDN) facilities, telegraph signal converters, and automatic calling equipment where CCITT1' Recommendations 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 Recommendation V.31 or V.31 bis.International Standard ISO/IEC 2110 additionally provides the dimensions of the connector housing, as well as the recom-mended means of providing a locking device (latching block) and connector shielding.