ISO/IEC 11569:1993

Information technology — Telecommunications and information exchange between systems — 26-pole interface connector mateability dimensions and contact number assignments

Specifies a 26-pole connector for use at the interface between data terminal equipment and data circuit terminating equipment. Is applicable where the functional characteristics of the interface conform to 100 Series definitions in CCITT Recommendation V.24 and the electrical characteristics conform to CCITT Recommendations V.10, V.11, or V.28. Is not applicable to modems for parallel data transmission. Annex A describes interoperation with other interfaces.