1、BRITISH STANDARD BS ISO/IEC 13575:1995 Implementation of ISO/IEC 13575:1995 Information technology Telecommunications and information exchange between systems 50-pole interface connector mateability dimensions and contact number assignmentsBSISO/IEC13575:1995 This British Standard, having been prepa
2、red under the directionof the Information Systems Technology Assembly, was published under the authorityof the Standards Boardand comes into effect on 15 July 1995 BSI 03-2000 The following BSI references relate to the work on this standard: Committee reference IST/6 Draft for comment 94/642334 DC I
3、SBN 0 580 24513 6 Committees responsible for this BritishStandard The preparation of this British Standard was entrusted to Technical Committee IST/6, Data communications, upon which the following bodies were represented: British Computer Society British Telecommunications plc CCTA (the Government C
4、entre for Information Systems) Digital Equipment Co Ltd. IBM United Kingdom Ltd. Institution of Electrical Engineers International Computers Limited Logica UK Ltd. Nine Tiles Computer Systems Ltd. Rank Xerox (UK) Ltd. Amendments issued since publication Amd. No. Date CommentsBSISO/IEC13575:1995 BSI
5、03-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword iii Text of ISO/IEC 13575 1BSISO/IEC13575:1995 ii BSI 03-2000 National foreword This British Standard reproduces verbatim ISO/IEC 13575:1995 and implementsit as the UK national standard. This British Stan
6、dard is published under the direction of the Information Systems Technology Assembly whose Technical Committee IST/6 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep
7、UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. A British Standard does not purport
8、 to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cove
9、r, pages i and ii, theISO/IEC title page, pages ii to iv, pages 1 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO/IEC13575:1995(E) ii BSI 03-2000 Contents
10、Page Foreword iii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Connector 1 5 Assignment of Contacts 1 6 Shielding 2 Figure 1 Cable connector (male contacts) 3 Figure 2 Equipment connector (female contacts) 3 Figure 3 Mating dimensions (cable connector) 4 Figure 4 Mating dimensions (equipment
11、 connector) 5 Figure 5 Interface point 6 Table 1 Interchange Circuits 2 Table 2 Assignment of contact numbers 2ISO/IEC13575:1995(E) BSI 03-2000 iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system fo
12、r 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 committees collabo
13、rate in fields of mutual interest. Other international organizations, 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, ISO/IEC JTC 1. Draft International Stand
14、ards adopted by the joint technical committee are circulated to national bodies for voting. 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 ISO/IEC JTC 1,
15、 Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems.iv blankISO/IEC13575:1995(E) BSI 03-2000 1 1 Scope This International Standard specifies a 50-pole connector, including the necessary mateability dimensions and the assignment of contact numbers,
16、for use at the interface between data terminal equipment (DTE) and data circuit terminating equipment (DCE). It is applicable where the functional characteristics of the interface conform to CCITT Recommendation V.24 and the electrical characteristics conform to ITU-TRecommendationV.12. 2 Normative
17、references The following ITU-T (CCITT) Recommendations and International Standards contain certain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All ITU-T (CCITT) Recommendations
18、and International Standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards/recommendations indicated below. Members of IEC and ISO maintain registers of curren
19、tly valid International Standards. The ITU-T Secretariat maintains a list of currently valid ITU-T (CCITT) Recommendations. CCITT Recommendation V.24:1988, List of definitions for interchange circuits between data terminal equipment and data circuit-terminating equipment. ITU-T Recommendation V.12:1
20、995, Electrical characteristics for balanced interchange circuits with data signalling rates up to 52 Mbit/s. ITU-T Recommendation V.130:1995, ISDN Terminal Adapter Framework. IEC 48B (Sec.):1993, Detail specification for a range of shielded connectors with trapezoidal shaped shells and non-removabl
21、e rectangular contacts on a1,27 2,54 mm (0,050 0,100 in) centerline. 3 Definitions For the purposes of this standard the following definitions apply: 3.1 connector housing a part of a connector into which the inserts and contacts are assembled 3.2 contact arrangement the number, spacing and configur
22、ation of contacts in a component 3.3 female contact a contact intended to make electrical engagement on its inner surface 3.4 intermateable connectors two connectors that are capable of being connected to each other electrically and mechanically without regard to their performance 3.5 latching devic
23、e a feature incorporated in certain components to provide mechanical retention of their mating parts 3.6 male contact a contact intended to make electrical engagement on its outer surface 3.7 seating plane the surface that the connector bottoms on when fully mated 4 Connector A 50-pole connector sha
24、ll be provided for the DTE/DCE interface. Figure 1 to Figure 4 illustrate the connector. Only those dimensions that are essential for mating are shown. The DTE-DCE interface point is defined at the point between the cable connector associated with the cable attached or wired to the DTE and the equip
25、ment connector associated with the DCE (seeFigure 5). Figure 1 illustrates the cable connector which has50 male contacts in a connector housing. Figure 2 illustrates the equipment connector which has 50 female contacts in a connector housing. The connector housing on the equipment connector is dimen
26、sioned to fit inside the connector housing of the cable connector (see Figure 3 and Figure 4). Figure 3 and Figure 4 give contact numbering and illustrate the dimensions and latching mechanism for the cable and equipment connectors respectively. 5 Assignment of Contacts The assignment of contact num
27、bers is given in Table 2. The list of interchange circuits is given in Table 1.ISO/IEC13575:1995(E) 2 BSI 03-2000 6 Shielding The 50-pole connector is a shielded connector. Table 1 Interchange Circuits All circuits should have both sides (the A and B) assigned to a twisted pair in the interconnectin
28、g cable to minimize cross-talk. Table 2 Assignment of contact numbers 102 Signal common 102a DTE common return 102b DCE common return 103 Transmitted data 104 Received data 107 Data set ready 108/2 Data terminal ready 113 Transmitter signal element timing (DTE) 114 Transmitter signal element timing
29、(DCE) 115 Receiver signal element timing (DCE) 142 Test indicator Contact Circuit Description 1, 7, 13, 19, 25, 26, 32, 38, 44, 50 102 Signal Ground 2 115A Receiver signal element timing (DCE) 3 107A Data set ready 4 104A Received data 5, 30, 1418, 3943 (reserved) to DCE 6 114A Transmitter signal el
30、ement timing (DCE) 8 108/2A Data terminal ready 9 113A Transmitter signal element timing (DTE) 10 (reserved for national loopbacks) 11 103A Send data 12 (reserved for national loopbacks) 24 Test indicator 27 115B Receiver signal element timing (DCE) 28 107B Data set ready 29 104B Received data 31 11
31、4B Transmitter signal element timing (DCE) 33 108/2B Data terminal ready 34 113B Transmitter signal element timing (DTE) 35 (reserved for national loopbacks) 36 103B Received data 37 (reserved for national loopbacks) 2023, 4548 (reserved) from DCE 49 142B Test indicatorISO/IEC13575:1995(E) BSI 03-20
32、00 3 Figure 1 Cable connector (male contacts) Figure 2 Equipment connector (female contacts)ISO/IEC13575:1995(E) 4 BSI 03-2000 50 Position Dimensions Millimeters Inches A1 34,85 1,372 A2 5,69 ,224 A3 2,54 ,100 A4 1,27 ,050 A5 30,48 1,200 A6 15 15 A7 1,04 R ,041 R A8 0,40 ,01 0,156 ,0004 A9 0,23 ,009
33、 A10 0,60 ,03 ,024 ,001 A11 0,23 ,009 A12 0,06 ,002 A13 4,90 ,10 ,193 ,004 A14 4,27 MAX ,168 MAX A15 2,64 MIN ,104 MIN A16 0,38 MAX ,015 MAX Figure 3 Mating dimensions (cable connector)ISO/IEC13575:1995(E) BSI 03-2000 5 50 Position Dimensions Millimeters Inches B1 34,70 1,366 B2 5,54 ,218 B3 2,54 ,1
34、00 B4 1,27 ,050 B5 30,48 1,200 B6 15 15 B7 1,00 R ,039 R B8 0,61 ,05 0,24 ,002 B9 0,15 ,005 B10 0,86 1,0 0,34 ,004 B11 0,15 ,006 B12 0,05 ,002 B13 5,10 ,05 ,201 ,002 B14 5,00 ,13 ,197 ,005 B15 1,85 MAX ,073 MAX B16 1,50 MAX ,059 ,001 B17 42,29 ,10 1,665 ,004 B18 1,52 MIN ,060 MIN B19 46,48 ,13 1,878
35、70 005 B20 5,99 ,08 ,236 ,003 B21 0,88 MIN ,035 MIN B22 1,27 MIN ,050 MIN Figure 4 Mating dimensions (equipment connector)ISO/IEC13575:1995(E) 6 BSI 03-2000 Figure 5 Interface pointblankBS ISO/IEC 13575:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independe
36、nt national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they posse
37、ss the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity
38、of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign stand
39、ards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standar
40、ds BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information C
41、entre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyr
42、ight Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted i
43、n any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
