1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Fibre optic connector interfaces Part 25: Type RAO connector familyBS EN 61754-25:2009National forewordThis Briti
2、sh Standard is the UK implementation of EN 61754-25:2009. It isidentical to IEC 61754-25:2008.The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnectingdevices and passive components.A list of organizations
3、represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 58277 6ICS 33.180.20Compliance with a British Standard cannot con
4、fer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 September 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61754-25:2009EUROPEAN STANDARD EN 61754-25 NORME EUROPENNE
5、EUROPISCHE NORM March 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form a
6、nd by any means reserved worldwide for CENELEC members. Ref. No. EN 61754-25:2009 E ICS 33.180.20 English version Fibre optic connector interfaces - Part 25: Type RAO connector family (IEC 61754-25:2008) Interfaces de connecteurs pour fibres optiques - Partie 25: Famille de connecteurs du type RAO (
7、CEI 61754-25:2008) Steckgesichter von Lichtwellenleiter-Steckverbindern - Teil 25: Steckverbinderfamilie der Bauart RAO (IEC 61754-25:2008) This European Standard was approved by CENELEC on 2009-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
8、conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists
9、in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrot
10、echnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan
11、d and the United Kingdom. BS EN 61754-25:2009EN 61754-25:2009 2 Foreword The text of document 86B/2624/CDV, future edition 1 of IEC 61754-25, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and
12、 was approved by CENELEC as EN 61754-25 on 2009-02-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-11-01 latest date by which the national standards conflicting with
13、the EN have to be withdrawn (dow) 2012-02-01 _ Endorsement notice The text of the International Standard IEC 61754-25:2008 was approved by CENELEC as a European Standard without any modification. _ BS EN 61754-25:2009 2 61754-25 IEC:2008 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Description .6
14、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 BS EN 61754-25:200961754-25 IEC:2008 3 INTERNATIONAL ELECTRO
15、TECHNICAL 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 object of IEC
16、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 Specifications (PAS) a
17、nd 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 liaising with th
18、e 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 express, as nearly
19、 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 Committees in that s
20、ense. 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 National Committees u
21、ndertake 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 marking procedur
22、e 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, servants or agents
23、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 publication, use of, or
24、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 been prepared b
25、y 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 this standard
26、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 website. BS EN 61754
27、-25:2009 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 reco
28、nfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 61754-25:200961754-25 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
29、. IEC takes no position concerning 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, t
30、he statement of the holder 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.,Lt
31、d 2973-4,Ishikawa-Cho,Hachioji-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:2001-318
32、847). NTT holds the patent 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 a
33、ny or all such patent rights. BS EN 61754-25:2009 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
34、 right-angled optical board connector, for glass 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
35、mm x 2,5 mm, which use two 0,7 mm diameter alignment 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 configu
36、ration (side view) Figure 2a: RAO socket connector 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 BS EN 61754-25:200961754-25 IEC:2008 7 Plug co
37、nnector Socket connector Back plane Circuit board IEC 1817/08 Figure 1a Top view Curvature of optical ribbon fibres IEC 1818/08 Figure 1b Side view Figure 1 RAO connector configuration BS EN 61754-25:2009 8 61754-25 IEC:2008 Back plane Outer housing a A B F G E D C H I Z Z Mechanical reference plane
38、 X IEC 1819/08 Figure 2a RAO socket connector interface BS EN 61754-25:200961754-25 IEC:2008 9 Mechanical reference plane X DX Ferrule endface DY DZ DS DT DU BCBA BB b b Y1DFDRDPDODL Inner housing Ferrule (NOTE 6) Optical reference plane Guide pin hole X1CA CB CC d CH CI CN CJCKCL CMDetail d CGDetai
39、l of section a b-b cross section IEC 1820/08Figure 2a RAO socket connector interface (concluded) BS EN 61754-25:2009 10 61754-25 IEC:2008 0,875 0,875 X10,125 0,125 Y1Two fibres 0,375 0,375 Four fibres 0,125 0,125 0,625 0,625 0,375 0,375 X1X10,125 0,125 Y1Y1Eight fibres 1,125 1,125 0,875 0,875 0,625
40、0,625 0,375 0,375 Y1X10,125 0,125 Ten fibres 1,375 1,375 1,125 1,125 0,875 0,875 0,625 0,625 0,375 0,375 X10,125 0,125 Y1Twelve fibres IEC 1821/08 Figure 2b Optical datum target location diagrams Figure 2 RAO socket connector BS EN 61754-25:200961754-25 IEC:2008 11 Table 1 Dimensions of the RAO sock
41、et 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 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
42、 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 0,55 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 Ch
43、amfer 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 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 BS EN 61754-25:2009 12 61754-25 IEC:2008 Table 1 (co
44、ntinued) NOTE 1 For singlemode fibre. NOTE 2 For multimode fibre. NOTE 3 The inner housing should have a clearance enabling the housing to 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
45、housing is shifted toward the direction illustrated in the figure. This dimension is not required to be measured. NOTE 5 Dimension DX is given 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
46、variable. Ferrule compression force must be 7,8 N to 11,8 N when mated. NOTE 6 As for the details, see IEC 61754-51). _ 1)IEC 61754-5, Fibre optic connector interfaces Part 5: Type MT connector family BS EN 61754-25:200961754-25 IEC:2008 13 Mechanical reference plane X a Latch JIKB A C D E G F H Cir
47、cuit board Circuit board Circuit board Y Z BA BB d d b b Ferrule (NOTE 2) Detail a Mechanical reference plane DA DB DQ DCDDDEDFDJDKDLDMd-d cross section b-b cross section Ferrule endface and optical reference plane CBCCCD CF CG IEC 1822/08 Figure 3 RAO plug connector BS EN 61754-25:2009 14 61754-25
48、IEC:2008 Table 2 Dimensions of the RAO plug connector interface Dimension Item Minimum Maximum Remarks A 23,95 mm 24,05 mm B 7,95 mm 8,05 mm C 38,6 mm 39,0 mm Note 1 D 36,40 mm 36,50 mm E 31,9 mm 32,1 mm F 7,5 mm 7,6 mm G 9,9 mm 10,0 mm H 39,27 mm 39,47 mm I 4,98 mm 5,18 mm J 16,96 mm 17,06 mm K 2,0
49、 mm 2,2 mm Radius BA 9,8 mm 9,9 mm BB 7,8 mm 8,0 mm CB 9,82 mm 9,90 mm CC 8,01 mm 8,09 mm CD 0,60 mm 0,70 mm Chamfer CF 0,2 mm 0,3 mm CG 1,0 mm 1,1 mm DA 1,35 mm 1,45 mm DB 9,38 mm 9,42 mm DC 0,3 mm 0,4 mm DD - 1,0 mm Radius DE 1,45 mm 1,55 mm Chamfer DF 0,73 mm 0,83 mm DJ 1,8 mm 2,1 mm DK 3,84 mm 3,94 mm DL 1,35 mm 1,65 mm DM 3,37 mm 3,43 mm DQ 2,35 mm - NOTE 1 This dimension is for the tip
