1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFibre optic interconnectingdevices and passive components Fibre optic connector interfacesPart 28: Type LF3 connector familyBS EN 61754-28:2012National forewordThis British Stand
2、ard is the UK implementation of EN 61754-28:2012. It isidentical to IEC 61754-28:2012.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 represen
3、ted 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. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 7381
4、2 8ICS 33.180.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 August 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN
5、61754-28:2012EUROPEAN STANDARD EN 61754-28 NORME EUROPENNE EUROPISCHE NORM July 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels
6、 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61754-28:2012 E ICS 33.180.20 English version Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 28: Type LF3 connector family
7、 (IEC 61754-28:2012) Dispositifs dinterconnexion et composantspassifs fibres optiques - Interfaces de connecteurs pour fibres optiques - Partie 28: Famille de connecteurs de type LF3 (CEI 61754-28:2012) Lichtwellenleiter -Verbindungselemente und passive Bauteile - Steckgesichter von Lichtwellenleite
8、r-Steckverbindern - Teil 28: Steckverbinderfamilie der Bauart LF3 (IEC 61754-28:2012) This European Standard was approved by CENELEC on 2012-06-19. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
9、s 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French,
10、 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Be
11、lgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed
12、en, Switzerland, Turkey and the United Kingdom. BS EN 61754-28:2012EN 61754-28:2012 - 2 - Foreword The text of document 86B/3387/FDIS, future edition 1 of IEC 61754-28, prepared by SC 86B, “Fibre optic interconnecting devices and passive components“, of IEC TC 86, “Fibre optics“ was submitted to the
13、 IEC-CENELEC parallel vote and approved by CENELEC as EN 61754-28:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-03-19 latest date by which the national stand
14、ards conflicting with the document have to be withdrawn (dow) 2015-06-19 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement n
15、otice The text of the International Standard IEC 61754-28:2012 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: ISO 8015 NOTE Harmonized as EN ISO 8015. BS EN 61754-28:20
16、12- 3 - EN 61754-28:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, o
17、nly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year
18、 IEC 60794-2-50 - Optical fibre cables - Part 2-50: Indoor cables - Family specification for simplex and duplex cables for use in terminated cable assemblies EN 60794-2-50 - BS EN 61754-28:2012 2 61754-28 IEC:2012 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative reference . 6 3 Description . 6 4 In
19、terfaces . 6 Annex A (informative) Panel cutout . 18 Bibliography 19 Figure 1 Simplex plug interface 8 Figure 2 APC/PC endface geometry . 9 Figure 3 Duplex plug interface 9 Figure 4 Simplex adaptor interface . 12 Figure 5 Duplex adaptor interface . 12 Figure 6 Pin gauge for adaptor . 14 Figure 7 Sim
20、plex active device receptacle interface 15 Figure 8 Duplex active device receptacle interface 15 Figure A.1 Simplex and duplex adaptor cutout 18 Table 1 Intermateability between plugs, adaptors and active device within the IEC 61754-28 family 7 Table 2 Dimensions of plug connector interface (1 of 2)
21、 10 Table 3 Ferrule grade table for plug connector interface . 11 Table 4 Dimensions of the simplex and duplex adaptor interface. 13 Table 5 Gauge pin dimensions . 14 Table 6 Dimensions of active device interface 16 Table 7 Grade table 17 Table A.1 Dimensions of the simplex and duplex adaptor cutout
22、 . 18 BS EN 61754-28:201261754-28 IEC:2012 5 INTRODUCTION The 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 61754-28. IEC takes no position concerning the evidence, vali
23、dity and scope of this patent right. The holder of this patent right has assured the 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 holder of this patent right
24、 is registered with IEC. Information may be obtained from: DIAMOND SA Via dei Patrizi 5 6616 Losone Switzerland 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 fo
25、r identifying any or all such patent rights. ISO (www.iso.org/patents) and IEC (http:/www.iec.ch/tctools/patent_decl.htm) maintain on-line data bases of patents relevant to their standards. Users are encouraged to consult the data bases for the most up to date information concerning patents. BS EN 6
26、1754-28:2012 6 61754-28 IEC:2012 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS FIBRE OPTIC CONNECTOR INTERFACES Part 28: Type LF3 connector family 1 Scope This part of IEC 61754 defines the standard interface dimensions for the type LF3 family of connectors. 2 Normative reference The fo
27、llowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60794-2-5
28、0, Optical fibre cables Part 2-50: Indoor cables Family specification for simplex and duplex cables for use in terminated cable assemblies 3 Description The parent connector for the type LF3 connector family is a simplex connector which is characterized by a 1,25 mm nominal ferrule diameter. It incl
29、udes a push-click-pull coupling mechanism, which is spring-loaded relative to the ferrule in the direction of the optical axis. The optical alignment mechanism of the connectors is a rigid bore sleeve or a resilient sleeve style. Drawings and dimensions provided consist of those minimum features tha
30、t are functionally critical during the mating and unmating sequences of the plug with its adapter/receptacle counterpart component. 4 Interfaces The pages that follow define the standard interfaces for the type LF3 connector family. This standard contains the following standard interfaces: 61754-28-
31、1 Simplex plug connector PC-interface 61754-28-2 Simplex adaptor interface 61754-28-3 Simplex active device receptacle interface 61754-28-4 Duplex plug connector PC-interface 61754-28-5 Duplex adaptor interface 61754-28-6 Duplex active device receptacle interface 61754-28-7 Simplex plug connector in
32、terface APC 8 61754-28-8 Duplex plug connector interface APC 8 The standards in Table 1 are intermateable. BS EN 61754-28:201261754-28 IEC:2012 7 Table 1 Intermateability between plugs, adaptors and active device within the IEC 61754-28 family Plugs Adaptors Active device 61754-28-2 61754-28-5 61754
33、-28-3 61754-6 61754-28-1 Mate Mate Mate Mate 61754-28-4 Not mate Mate Not mate Mate 61754-28-7 Mate Mate Mate Mate 61754-28-8 Not mate Mate Not mate Mate BS EN 61754-28:2012 8 61754-28 IEC:2012 Figure 1 gives an example of a simplex plug interface. Body EA Plane A EB AO AR AF APAQ Protection cap H2A
34、 H1F Section b-b D 0,05 A 0,05 A 0,025 A C N MUJIZG Y V b b O Q B Optical reference plane Ferrule Plane B Top view with protection cap opened (APC type) Mechanical reference plane Mechanical reference plane IEC 719/12 Figure 1 Simplex plug interface BS EN 61754-28:201261754-28 IEC:2012 9 Figure 2 gi
35、ves an example of endface geometry. No sharp edge No sharp edge A BG BI BHBHBI A BG IEC 720/12 Figure 2 APC/PC endface geometry Figure 3 gives an example of the duplex plug interface. K C 0,2 C IEC 721/12 Figure 3 Duplex plug interface BS EN 61754-28:2012 10 61754-28 IEC:2012 Table 2 gives dimension
36、s of the plug connector interface. Table 2 Dimensions of plug connector interface (1 of 2) Reference Dimensions mm Remarks Minimum Basic Maximum A Diameter, Grade, see Table 2b B a10,3 10,6 C 4,2 4,45 D 3,2 3,35 F 0,3 0,5 Radius G 4,88 5,10 Ferrule extension H14,42 4,52 H24,42 4,52 I 3,0 3,2 Diamete
37、r J H/2 H/2 K 6,25 M - 1,0 N - 0,5 O 1,1 - Q 8,6 8,9 U 5,0 5,1 V 12,1 - Y 3,3 - Z 5,6 7,5 Dependent on version, with or without protection cap AO 3,35 3,4 Height protection cap AP 6,7 6,9 Length protection cap AQ 2,5 2,63 AR 4,45 4,48 Width protection cap AF 17 Degrees BG b0,6 - Pedestal diameter BH
38、 b- 1,0 BI b, c5 - Radius EA d90 Degrees EB 8 Degrees BS EN 61754-28:201261754-28 IEC:2012 11 Table 2 (2 of 2) aDimension B is given for a plug endface when not mated. The ferrule is movable by a certain axial compression force, with direct contacting endface, and therefore dimension B is variable.
39、Ferrule compression force shall be 5,0 N to 6,0 N when the position of the optical datum target, dimension B is moved to the range 9,8 mm to 10,0 mm. Forces are for buffered fibre only; different cord constructions can result in higher forces (see IEC 60794-2-50). bThese dimensional requirements app
40、ly to the finished ferrule, after all polishing procedures have been completed. cDimension BI is the radius of the polished ferrule end face dDimension EA is defined as an angle between two planes: One plane, plane A, passes through the axis of the ferrule and the axis of symmetry of the key of the
41、angled end face connector plug. The other plane, plane B, passes through the axis of the ferrule and the plane normal to the angled PC reference plane. Table 3 gives a ferrule grade table for plug connector interfaces. Table 3 Ferrule grade table for plug connector interfaces Grade A mm Minimum Maxi
42、mum 0 1,2490 1,2495 1 1,2485 1,2495 2 1,2483 1,2495 BS EN 61754-28:2012 12 61754-28 IEC:2012 Figures 4 and 5 give examples of simplex and duplex adaptor interfaces. A JARAP Optical reference plane AQ a a Section a-a MH1H2AO C F N Section b-b Optical reference plane Mechanical reference plane ASb b C
43、 D E 0,05 C 0,05 C Shown without laser protection shutter Laser protection shutter (not dimensioned) 0,05 C B G IAAWZAX AVPB O AT 0,025 B 0,05 B 0,025 A IEC 722/12 Figure 4 Simplex adaptor interface 0,1 B K B IEC 723/12 Figure 5 Duplex adaptor interface BS EN 61754-28:201261754-28 IEC:2012 13 Table
44、4 gives dimensions of the simplex and duplex adaptor interface. Table 4 Dimensions of the simplex and duplex adaptor interface Reference Dimensions mm Remarks Minimum Basic Maximum Aa Diameter B 9,9 10 Diameter C 4,5 - D 3,4 3,5 E 2,6 2,7 F 0,2 0,3 Radius G 4,0 4,1 H14,65 4,75 H24,65 4,75 I 2,87 2,9
45、7 Diameter J 2,29 K 6,25 M 1,0 1,1 N 0,5 0,6 O - 1,3 P 15 Degrees, typical Z 7,6 7,9 AO 11,0 12,8 AP 14,5 14,7 AQ 2,2 2,4 Radius AR 1,1 1,2 AS 6,6 6,8 AT 0,6 0,7 AV 1,0 1,1 AW 1,4 1,5 Diameter AX 1,9 - aThe connector alignment feature is a resilient (split) alignment sleeve. The feature must accept
46、a pin gauge to the centre of the adaptor with a force of 1,0 N to 2,5 N under the condition that another pin gauge is inserted into the feature from the other side until both pin gauges butt against each other. The pin gauge shall be according to Figure 6. The centre of the adaptor is defined by the
47、 left side position of dimension B BS EN 61754-28:2012 14 61754-28 IEC:2012 Figure 6 gives an example of a pin gauge for an adaptor. CK CN Chamfer or radius IEC 724/12 NOTE 1 Surface roughness RZ= 0,2 m. Figure 6 Pin gauge for adaptor Table 5 gives gauge pin dimensions. Table 5 Gauge pin dimensions
48、Pin gauge grade CK diameter mm CN mm Remarks Minimum Maximum Minimum Maximum 1,249 1,2488 1,2492 4,2 15 Resilient sleeve aaSurface roughness should be 0,2 m Ra; cylindricity is less than 0,5 m. BS EN 61754-28:201261754-28 IEC:2012 15 Figures 7 and 8 give examples of simplex and duplex active device
49、receptacle interfaces. A JARAP Optical reference plane AQ a Section a-a MH1H2AO C F N Section b-b Optical reference plane Mechanical reference plane ASb b C D E 0,05 C 0,05 C 0,05 C B G IAAWZAX AVPB O AT 0,05 B 0,05 B a 0,025 A IEC 725/12 Figure 7 Simplex active device receptacle interface 0,1 B K B IEC 726/12 Figure 8 Duplex active device receptacle interface BS EN 61754-28:2012
