ISO/IEC 13575:1995

INTERNATIONAL
ISO/IEC
STANDARD
First edition
1995-03-01
Information technology -
Telecommunications and information
exchange between Systems - 50-pole
interface connector mateability dimensions
and contact number assignments
Technologies de I ’informa tion - T6Ecommunications et khange
- Dimensions de raccordement du
d ‘information en tre systemes
connecteur d ’interface de 50 pOles et attributions du num&o de contact
Reference number
ISO/IEC 13575: 1995(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the lnter-
national Electrotechnical Commission) form the specialized System for
worldwide standardization. National bodies that are members of ISO or
IEC participate in the development of International Standards through
technical committees established by the respective organization to deal
with particular fields of technical activity. ISO and IEC technical com-
mittees collaborate in fields of mutual interest. Other international organ-
izations, governmental and non-governmental, in liaison with ISO and IEC,
also take part in the work.
In the field of information technology, ISO and IEC have established a joint
technical committee, lSO/IEC JTC 1. Draft International Standards adopted
by the joint technical committee are circulated to national bodies for vot-
ing. Publication as an International Standard requires approval by at least
75 % of the national bodies casting a vote.
International Standard ISO/IEC 13575 was prepared by Joint Technical
Committee lSO/IEC JTC 1, Information technology, Subcommittee SC 6,
Telecommunications and information exchange between Systems.
0 ISO/IEC 1995
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ii
0 ISO/lEC
INTERNATIONAL STANDARD
Information technology - Telecommunications and information exchange
between Systems - 50-pole interface connector mateability dimensions and
contact number assignments
1 Scope
3 Definitions
This International Standard specifies a 50.pole
For the purposes of this Standard the following .
connector, including the necessary mateability
definitions apply:
dimensions and the assignment of contact
numbers, for use at the interface between data
31 connector housing : A part of a
terminal equipment (DTE) and data circuit
connector into which the inserts and contacts are
terminating equipment (DCE). lt is applicable
assembled.
where the functional characteristics of the interface
conform to CCITT Recommendation V.24 and the
32 contact arrangement : The number,
electrical characteristics conform to ITU-T
and configuration of contacts in a
spacing
Recommendation V.12.
component.
2 Normative references
33 female contact : A contact intended to
iake electrical engagement on its inner surface.
The following ITU-T (CCI ’TT) Recommendations
and International Standards contain certain
34 intermateable connectors : Two
provisions which, through reference in this text,
c&nectors that are capable of being connected to
constitute provisions of this International Standard.
each other electrically and mechanically without
At the time of publication, the editions indicated
regard to their Performance.
were valid. All ITU-T (CCI ’TT) Recommendations
and International Standards are subject to
35 latching device : A feature incorporated in
revision, and Parties to agreements based on this
c&ain components to provide mechanical
International Standard are encouraged to
retention of their mating Parts.
investigate the possibility of applying the most
recent editions of the standards/recommendations
male contact : A contact intended to make
indicated below. Members of IEC and tS0
eiectrical engagement on its outer sufface.
maintain registers of currently valid International
Standards. The ITU-T Secretariat maintains a list
37 seating plane : The surface that the
of currently valid ITU-T
Wirr)
cinnector bottoms on when fully mated.
Recommendations.
4 Connector
CCITT Recommendation V.24: 1988, List of
definifions for interchange circuifs between data
A 50,pole connector shall be provided for the
terminal equjpment and data circuit-terminatjng
DTE/DCE interface. Figures 1 to 4 illustrate the
equipment.
connector. Only those dimensions that are
essential for mating are shown.
ITU-T Recommendation V.12: 1995, Elecfrical
characferisfics for balanced interchange circuits
The DTE-DCE interface Point is defined at the
with
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