1、 IEC 61754-25 Edition 1.0 2008-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic connector interfaces Part 25: Type RAO connector family Interfaces de connecteurs pour fibres optiques Partie 25: Famille de connecteurs du type RAO IEC 61754-25:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Cop
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16、 +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61754-25 Edition 1.0 2008-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic connector interfaces Part 25: Type RAO connector family Interfaces de connecteurs pour fibres optiques Partie 25: Famille de connecteurs du type RAO INTERNATIONAL ELECTROT
17、ECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE N ICS 33.180.20 PRICE CODE CODE PRIX ISBN 2-8318-1013-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61754-25 IEC:2008 CONTENTS FOREWORD.3 INTRODUCT
18、ION.5 1 Scope.6 2 Description .6 3 Interfaces .6 Figure 1 RAO connector configuration .7 Figure 2 RAO socket connector .10 Figure 3 RAO plug connector.13 Table 1 Dimensions of the RAO socket connector interface .11 Table 2 Dimensions of the RAO plug connector interface.14 61754-25 IEC:2008 3 INTERNA
19、TIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC CONNECTOR INTERFACES Part 25: Type RAO connector family FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The
20、object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specific
21、ations (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations li
22、aising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters expr
23、ess, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Commit
24、tees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC Nationa
25、l Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no ma
26、rking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, serva
27、nts or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publicatio
28、n, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. International Standard IEC 61754-25 has b
29、een prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. The text of this standard is based on the following documents: CDV Report on voting 86B/2624/CDV 86B/2711/RVC Full information on the voting for the approval of
30、this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 61754 series, under the general title: Fibre optic connector interfaces, can be found on the IEC websit
31、e. 4 61754-25 IEC:2008 The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirme
32、d, withdrawn, replaced by a revised edition, or amended. 61754-25 IEC:2008 5 INTRODUCTION International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning IEC 61754-25. IEC takes no position c
33、oncerning the evidence, validity and scope of this patent right. The holder of this patent right has assured IEC that he/she is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holde
34、r of this patent right is registered with IEC. Information may be obtained from: Intellectual Property Management Business Department NTT Advance Technology Corporation Musashino-center Bidg,1-19-18 Nakamachi Musashino-Shi, Tokyo Japan R&D Department Sanwa Denki Kogyo Co.,Ltd 2973-4,Ishikawa-Cho,Hac
35、hioji-Shi, Tokyo Japan Intellectual Property Department Nippon Telegraph and Telephone Corporation 9-11, Midori-Cho 3-Chome, Musashino-Shi, Tokyo Japan NTT Advance Technology Corporation and Sanwa Denki Kogyo hold the patent right concerning Figure 1A (patent number:2001-318847). NTT holds the paten
36、t right concerning Figure 2A and Figure 3 (patent number: 1991-228619). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. IEC shall not be held responsible for identifying any or all such patent rig
37、hts. 6 61754-25 IEC:2008 FIBRE OPTIC CONNECTOR INTERFACES Part 25: Type RAO connector family 1 Scope This part of IEC 61754 defines the standard interface dimensions for the type RAO family of connectors. 2 Description The type RAO connector is a multiway right-angled optical board connector, for gl
38、ass optical fibre, which connects two optical boards or provides a connection between an optical fibre ribbon and an optical board at an angle of 90. The optical connection is the physical contact of optical fibres with rectangular ferrules nominally 6,4 mm x 2,5 mm, which use two 0,7 mm diameter al
39、ignment pins. The radius of curvature at the 90 bend is maintained so that it gives permissible loss. 3 Interfaces This standard contains the following standard interfaces: Figure 1a: RAO connector configuration (top view) Figure 1b: RAO connector configuration (side view) Figure 2a: RAO socket conn
40、ector interface Figure 2b: Optical datum target location diagrams Figure 3: RAO plug connector Table 1: Dimensions of the RAO socket connector interface Table 2: Dimensions of the RAO plug connector interface 61754-25 IEC:2008 7 Plug connector Socket connector Back plane Circuit board IEC 1817/08 Fi
41、gure 1a Top view Curvature of optical ribbon fibres IEC 1818/08 Figure 1b Side view Figure 1 RAO connector configuration 8 61754-25 IEC:2008 Back plane Outer housing a A B F G E D C H I Z Z Mechanical reference plane X IEC 1819/08 Figure 2a RAO socket connector interface 61754-25 IEC:2008 9 Mechanic
42、al reference plane X DX Ferrule endface DY DZ DS DT DU BC BA BB b b Y 1 DF DR DP DO DL Inner housing Ferrule (NOTE 6) Optical reference plane Guide pin hole X 1CA CB CC d CH CI CN CJ CK CL CM Detail d CG Detail of section a b-b cross section IEC 1820/08Figure 2a RAO socket connector interface (concl
43、uded) 10 61754-25 IEC:2008 0,875 0,875 X 10,125 0,125 Y 1Two fibres 0,375 0,375 Four fibres 0,125 0,125 0,625 0,625 0,375 0,375 X 1 X 1 0,125 0,125 Y 1Y 1Eight fibres 1,125 1,125 0,875 0,875 0,625 0,625 0,375 0,375 Y 1X 10,125 0,125 Ten fibres 1,375 1,375 1,125 1,125 0,875 0,875 0,625 0,625 0,375 0,
44、375 X 10,125 0,125 Y 1Twelve fibres IEC 1821/08 Figure 2b Optical datum target location diagrams Figure 2 RAO socket connector 61754-25 IEC:2008 11 Table 1 Dimensions of the RAO socket connector interface Dimension Item Minimum Maximum Remarks A 23,95 mm 24,05 mm B 7,95 mm 8,05 mm C 38,8 mm 38,9 mm
45、D 36,55 mm 36,65 mm E 31,9 mm F 6,9 mm 7,0 mm G 10,3 mm 10,7 mm H 42,8 mm 43,0 mm I 2,9 mm 3,1 mm Diameter BA 10,05 mm 10,35 mm BB 8,1 mm 8,3 mm BC 8,1 mm 9,1 mm CA 11,55 mm 11,65 mm CB 9,95 mm 10,03 mm CC 7,92 mm 8,00 mm 28,92 mm 28,98 mm Note 1 CG 36,42 mm 36,48 mm Note 2 CH 1,17 mm 1,18 mm CI 0,5
46、5 mm 0,65 mm Chamfer CJ 1,7 mm 2,3 mm CK 0,20 mm 0,30 mm CL 0,30 mm 0,40 mm CM 0,8 mm 1,0 mm CN 0,55 mm 0,65 mm DF 0,725 mm 0,925 mm DL 1,32 mm 1,64 mm DO 35 50 DP 0,55 mm 0,65 mm Chamfer DR 0,9 mm 1,1 mm DS 1,10 mm 1,40 mm Note 3, Note 4 DT 1,15 mm 1,25 mm DU 0,3 mm 0,4 mm Note 4 DX 1,94 mm 2,26 mm
47、 Note 5 27,25 mm 27,35 mm Note 1, Note 4 DY 34,75 mm 34,85 mm Note 2, Note 4 21,75 mm 22,15 mm Note 1 DZ 29,25 mm 29,65 mm Note 2 12 61754-25 IEC:2008 Table 1 (continued) NOTE 1 For singlemode fibre. NOTE 2 For multimode fibre. NOTE 3 The inner housing should have a clearance enabling the housing to
48、 move 0,9 mm toward the direction illustrated in the figure while the connection is being established. NOTE 4 This dimension represents the state where the inner housing is shifted toward the direction illustrated in the figure. This dimension is not required to be measured. NOTE 5 Dimension DX is g
49、iven for a ferrule endface center when not mated. It is noticed that a ferrule is movable by a certain axial compression force, and therefore the dimension DX is variable. Ferrule compression force must be 7,8 N to 11,8 N when mated. NOTE 6 As for the details, see IEC 61754-5 1) . _ 1)IEC 61754-5, Fibre optic connector interfaces Part 5: Type MT connector fami
