ISO/IEC 13575:1995, Information technology - Telecommunications and information exchange between systems - 50-pole interface connector mateability dimensions and contact number assignments

Specifies a 50-pole connector, including the necessary mateability dimensions and the assignment of contact numbers, for use at the interface between data terminal equipment (DTE) and data circuit terminating equipment (DCE). Applicable where the functional characteristics of the interface conform to CCITT Recommendation V.24 and the electrical characteristics conform to ITU-T Recommendation V.12.