1、BRITISH STANDARD BS EN 61754-2:1997 IEC 1754-2: 1996 Fibre optic connector interfaces Part 2: Type BFOC/2,5 connector family The European Standard EN 61754-2:1997 has the status of a British Standard ICS 33.180.20BS EN61754-2:1997 This British Standard, having been prepared under the directionof the
2、 ElectrotechnicalSector Board, was published under the authorityof the Standards Boardand comes into effect on 15 May1997 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference EPL/86 Draft for comment 95/211415 DC ISBN 0 580 27359 8 Committees responsible
3、for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/86, Fibre-optics, to Subcommittee EPL/86/2, Interconnecting devices and passive components, upon which the following bodies were represented: British Approvals Service for Cables British Cable
4、 Makers Confederation British Telecommunications plc Electrical Cable and Conductor Accessory Manufacturers Association(BEAMA) ERA Technology Ltd. Fibreoptic Industry Association (FIA) National Physical Laboratory (NPL) Society of Cable Telecommunications Engineers Telecommunications Cables Group of
5、 BCMC Amendments issued since publication Amd. No. Date CommentsBSEN61754-2:1997 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 61754-2 3BS EN61754-2:1997 ii BSI 09-1999 National foreword This Part of BS EN 61754 has been prepared by
6、Subcommittee EPL/86/2, and is the English language version of EN61754-2:1997, Fibre optic connector interfaces Part 2: Type BFOC/2,5 connector family, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC1754-2:1996, published by the Internation
7、al Electrotechnical Commission(IEC). A British Standard does not purport 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. Summ
8、ary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 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
9、 cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61754-2 January 1997 ICS 33.180.20 Descriptors: Optic connector, type BFOC/2,5 English version Fibre optic connector interfaces Part 2: Type BFOC/2,5 connector family (IEC 1754-2:1996) Interfaces de connecteurs pour fibres optiques Partie 2
10、: Famille de connecteurs de type BFOC/2,5 (CEI 1754-2:1996) LWL-Steckverbinder Teil 2: Typ BFOC/2,5 Steckverbinderfamilie (IEC 1754-2:1996) This European Standard was approved by CENELEC on 1996-12-09. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
11、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
12、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
13、echnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electr
14、otechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61754-2:1997 EEN61754-2:1997 BSI 09-1999 2 Foreword The text o
15、f document 86B/824/FDIS, future edition 1 of IEC1754-2, prepared by SC86B, Fibre optic interconnecting devices and passive components, of IECTC86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN61754-2 on 1996-12-09. The following dates were fixed: Endo
16、rsement notice The text of the International Standard IEC1754-2:1996 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 Scope 3 2 Description 3 3 Interfaces 3 Figure 1a Plug connector interface 3 Figure 1b Ferrule end-face 4 Figure 2a Adaptor connecto
17、r interface 5 Figure 2b Gauge pin for resilient alignment sleeve 6 Table 1a Plug connector interface dimensions 4 Table 1b Tolerance grade table 4 Table 1c Plug connector interface dimensions 4 Table 2a Adaptor connector interface dimensions 6 Table 2b Tolerance grade table 6 Table 2c Gauge pin dime
18、nsions 6 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop)1997-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow)1997-09-01EN61754-2:1997 BSI 09-1999 3 1 Scope
19、 This part of IEC 1754 defines the standard interface dimensions for type BFOC/2,5 family of connectors. 2 Description The parent connector for type BFOC/2,5 connector family is a single position plug connector which is characterized by a2,5mm nominal ferrule diameter. It includes a bayonet coupling
20、 nut and a ferrule spring loaded in the direction of the optical axis. The plug has a single male key which may be used to orient and limit the relative rotation between the connector and the component to which it is mated. 3 Interfaces This standard contains the following standard interfaces: Inter
21、face 2-1: Plug connector interface Bayonet coupling Interface 2-2: Adaptor interface Bayonet coupling The following interfaces are intermateable: Interface 2-1 mates with interface 2-2. Figure 1a Plug connector interfaceEN61754-2:1997 4 BSI 09-1999 Table 1a Plug connector interface dimensions Table
22、1b Tolerance grade table Table 1c Plug connector interface dimensions Reference Dimensions mm Notes Minimum Maximum A See tolerance grade table B 5,25 5,46 C 0,91 1,07 D 7,06 7,24 E 7,75 8 5 F 2,56 G 0,58 0,76 H 1,6 3,2 J 9,4 9,8 K 0,59 0,89 L 5 M 0,6 1,12 N 8,56 P 1,6 3,2 U 9,54 11,11 1 V 37 91 Deg
23、rees Reference Dimensions mm Notes Minimum Maximum 1 2,4985 2,4995 2 2,498 2,5 3 2,497 2,5 4 2,494 2,5 NOTE 1Ferrule force is less than 15 N when the ferrule is compressed to U minimum and greater than7N when compressed to U maximum. NOTE 2Maximum radial float of0,5mm is permitted between the coupli
24、ng ring and the plug body. This float may be used to coaxially align the coupling ring with the plug body to minimize positional tolerance. NOTE 3Coupling ring free to rotate 360 minimum. NOTE 4Append the tolerance grade number to the interface number. NOTE 5Dimensions apply after termination. Refer
25、ence Dimensions mm Notes Minimum Maximum BA 1,9 BB 10 Radius NOTEDimensions apply after termination. Figure 1b Ferrule end-faceEN61754-2:1997 BSI 09-1999 5 Figure 2a Adaptor connector interfaceEN61754-2:1997 6 BSI 09-1999 Table 2a Adaptor connector interface dimensions Table 2b Tolerance grade table
26、 Table 2c Gauge pin dimensions Reference Dimensions mm Notes Minimum Maximum A See tolerance grade table B 5,49 5,82 C 1,12 1,47 D 6,86 7,04 E 6,99 7,62 F 4,8 5,56 G 0,58 H 1,07 1,57 J 2,501 2,84 K 0,71 L 4,99 M 2,36 3,53 N 8,53 S 3,9 T 55 95 Degrees W 0,15 Radius Grades Dimensions mm Notes Minimum
27、Maximum 0 1 1 2,501 2,503 2 2,501 2,505 3 2,501 2,510 4 2,501 2,515 NOTE 1The connector alignment feature is a resilient sleeve. The feature shall accept a gauge pin, as shown in Figure 2b, with a force of 2N to5,9N when another gauge pin is inserted into the feature from the opposite side to a dept
28、h of E maximum. NOTE 2Append tolerance grade number to interface base number. Reference Dimensions mm Notes Minimum Maximum CA 2,4985 2,4995 CB 7,75 CC 5,4 NOTESurface roughness grade N4 (0,2 4m radius). Figure 2b Gauge pin for resilient alignment sleeve7 blankBS EN 61754-2:1997 IEC 1754-2: 1996 BSI
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