CAN/CSA-ISO 4903-95 (R2013)

Foreword
1 Scope
2 Normative references
3 Definitions
4 Connector
5 Assignment of contact numbers
6 Connector shielding
7 Interconnecting configurations for mixed use
  of X.26, X.26 and V.28 electrical characteristics
Annex A (informative) - Diagrams for finger clearance
Annex B (informative) - Generator/receiver
        interconnecting configurations
Annex C (informative) - Interworking requirements with
        V.28 circuits

Scope This International Standard specifies the 15-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) where CCITT (International Telegraph and Telephone Consultative Committee) Recommendations X.24, X.26 and X.27 are applicable. International Standard ISO/IEC 4903 additionally provides the dimensions of the connector housing, as well as the recommended means of providing a locking device (latching block) and connector shielding.

Scope This International Standard specifies the 15-pole connector and the assignment of contact numbers at the interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) where CCITT (International Telegraph and Telephone Consultative Committee) Recommendations X.24, X.26 and X.27 are applicable. International Standard ISO/IEC 4903 additionally provides the dimensions of the connector housing, as well as the recommended means of providing a locking device (latching block) and connector shielding.