International Standard
ISO 2110:1989
Information technology — Data communication — 25-pole DTE/DCE interface connector and contact number assignments
Reference number
ISO 2110:1989
Edition 3
International Standard
Read sample
ISO 2110:1989
Published (Edition 3, 1989)
This standard was last reviewed and confirmed in 2002. Therefore this version remains current.
This standard has 1 amendment.

ISO 2110:1989

ISO 2110:1989
CHF 96
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Specifies the 25-pin connector and assignment of connector pin number at the interface between data terminal equipment and data circuit-terminating equipment or automatic calling equipment. Applicable to voice band modems, public data network facilities, telegraph signal converters, and automatic calling equipment where CCITT Recommendations V.24 and V.28 are valid.

General information

  •  : Published
     : 1989-10
    : International Standard confirmed [90.93]
  •  : 3
     : 13
  • ISO/IEC JTC 1/SC 6
  • RSS updates


Amendments are issued when it is found that new material may need to be added to an existing standardization document. They may also include editorial or technical corrections to be applied to the existing document.

Amendment 1

Interface connector and contact number assignments for a DTE/DCE interface for data signalling rates above 20 000 bit/s per second

Edition 1991

ISO 2110:1989/Amd 1:1991
CHF 18
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