CAN/CSA-ISO/IEC 2593-02 (R2011)
Information Technology - Telecommunications and Information Exchange Between Systems - 34-pole DTE/DCE Interface Connector Mateability Dimensions and Contact Number Assignments (Adopted ISO/IEC 2593:2000, fourth edition, 2000-12-15)
This International Standard specifies the 34-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) where ITU-T Recommendation V.36 or Recommendation X.21bis together with Recommendation V.10 and V.11 are applicable.
Note 1: An interoperation between interfaces designed according to electrical characteristics specified in ITU-T Recommendation V.36 and those specified in ITU-T Recommendation V.11 is, at least to a limited degree, possible. This can be achieved, for example, by using a passive adaptor which joins the interface connectors in accordance with ISO/IEC 2593 and ISO 4902, or ISO 4903, respectively.
This International Standard specifies the dimensions of the connector housing and gives recommendations for the type of locking device (jack-screw system) and connector shielding.