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1、BRITISH STANDARD BS EN 186220:1996 Harmonized system of quality assessment for electronic components Sectional specification: Connector sets for optical fibres and cables Type LSC The European Standard EN 186220:1993 has the status of a British Standard ICS 33.180.20 Licensed Copy: sheffieldun sheff
2、ieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186220:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1996 BSI 01-200
3、0 The following BSI references relate to the work on this standard: Committee reference EPL/86/2 Draft announced in BSI News March 1996 ISBN 0 580 25665 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/86, Fibre opti
4、cs, to Subcommittee EPL/86/2, Fibre optic interconnecting devices and passive components, upon which the following bodies were represented: BECCAMA (BEAMA Electrical Cable and Conductor Accessory Manufacturers Association) British Approvals Service for Cables British Cable Makers Confederation Briti
5、sh Telecommunications plc Department of Trade and Industry (National Physical Laboratory) Federation of the Electronics Industry Ministry of Defence National Supervising Inspectorate (BSI PC) Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No.DateComments Lic
6、ensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186220:1996 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 1862205 List of referencesInside back cover Licensed Copy: sheffieldu
7、n sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186220:1996 ii BSI 01-2000 National foreword This British Standard has been prepared by Subcommittee EPL/86/2 and is the English language version of EN 186220:1993 Sectional specification: Connector sets for opti
8、cal fibres and cables. Type LSC published by the Electronic Components Committee (CECC) of the European Committee for Standardization (CENELEC). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct app
9、lication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard EN 186000-1:1993BS EN 186000 Harmonized system of quality assessment for electronic components. Generic specification. Connec
10、tor sets for optical fibres and cables BS EN 186000-1:1994Requirements, test methods and qualification approval procedures IEC 825BS EN 60825 Safety of laser products Part 1:1994 Equipment classification, requirements and users guide Summary of pages This document comprises a front cover, an inside
11、front cover, pages i and ii, the EN title page, pages 2 to 16, an inside back cover 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. Licensed Copy: sheffieldun shef
12、fieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 186220 December 1993 Descriptors: Quality, electronic components, connector sets, optical fibres and cables English version Sectional specification: Connector sets for opt
13、ical fibres and cables Type LSC Spcification intermdiaire: Jeux de connecteurs pour fibres et cbles optiques Type LSC Rahmenspezifikation: Steckverbinderstze fr Lichtwellenleiter und Lichtwellenleiterkabel Bauart LSC This European Standard was approved by the CENELEC Electronic Components Committee
14、on 13 February 1992. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the 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 stand
15、ards may be obtained on application to the General Secretariat of the CECC or to any CENELEC member. This European Standard exists 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 langu
16、age and notified to the CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Swede
17、n, Switzerland and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical committees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komit
18、ee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN 186220:1993 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186220:1993 BSI 01-2000 2 Forewo
19、rd The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The object of the System is to facilitate i
20、nternational trade by the harmonization of the specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are thereby acceptable in all member countries wi
21、thout further testing. This European Standard was prepared by CECC WG 26, Fibre Optic Connectors. The text of the draft based on document CECC(Sec)2737 was submitted to the formal vote; together with the voting report, circulated as document CECC(Sec)3012 it was approved by CECC as EN 186220 on 13 F
22、ebruary 1992. The following dates were fixed: Contents Page Foreword2 Section 1. General 1.1Scope5 1.2Related Documents5 1.3Definitions5 1.4Safety6 1.5Marking6 Section 2. Requirements 2.1Classification7 2.2Reference Components10 2.3Gauges10 2.4Mounting Requirements10 2.5Quality Grade10 Section 3. Qu
23、ality Assessment Procedures 3.1Qualification Approval11 3.2Quality Conformance Inspection11 3.3Delayed Deliveries12 Annex 1 (informative) Determination of single limit mating face dimensions (min. or max.) for materials with a coefficient of expansion ! s 6.106 K113 Annex 2 (informative) Tolerance f
24、ields for ferrule and sleeve for clearance grade 0 to 515 Figure 1 Plug mating face single limit dimensions8 Figure 2 Adaptor mating face single limit dimensions9 Figure 3 Socket mating face single limit dimensions10 latest date of announcement of the EN at national level(doa) 1992-12-15 latest date
25、 of publication of an identical national standard(dop) 1993-06-15 latest date of declaration of national standards obsolescence1993-06-15 latest date of withdrawal of conflicting national standards(dow) 2002-12-15 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncont
26、rolled Copy, (c) BSI EN 186220:1993 BSI 01-20003 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 blank Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186220:1993 BSI 01-20005 S
27、ection 1. General 1.1 Scope This SS covers type LSC fibre optic connector sets. Type LSC defines single way connectors with a bayonet coupling mechanism and a cylindrical butting ferrule of 2,5 mm nominal diameter. This specification contains the requirements for type LSC connector sets. Detail spec
28、ifications (DSs) shall be prepared using the following pro forma general blank detail specifications (BDS) associated with the GS: EN 186001, environmental category I, When completed, the DSs applicable to this SS shall be renumbered in accordance with CECC 00700 (Section IV) Issue 1, clause 4.2, as
29、 follows: CECC 86 XX1-XXX Type LSC Environmental Category I 1.2 Related Documents The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revi
30、sion, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of CECC, IEC and ISO maintain registers of currently valid International Standards. References made to a specific clause or
31、 subclause of a standard includes all subclauses to the reference unless otherwise specified. EN 186000-1, Generic specification (GS) for connector sets for optical fibres and cables. IEC 825, Radiation safety of laser products, equipment classification, requirements and users guide. ISO 8015, Techn
32、ical drawings; fundamental tolerancing principle. ISO 128, Technical drawings General principles of presentation. 1.3 Definitions For comparison of connectors with different accuracy grades with different mechanical and optical quality grades within the same DS the connectors are specified with a qu
33、ality grade. This value gives a combination of the following three subgrades: * clearance grade * eccentricity grade * attenuation grade. 1.3.1 clearance grade this describes the tolerance field of the leading diameter of ferrule and sleeve. The clearance grade is given by a number, running from 0 (
34、tightest tolerance) to 5 (see Annex 2). The allocation of clearance grade and tolerance field is described in the relevant DS 1.3.2 eccentricity grade this describes the tolerance field that combines the tolerance of the borehole and its concentricity to the axis of the plug. This information is onl
35、y applicable for field mountable connectors. The eccentricity grade is given by a number, running from 0 (lowest tolerance) to 5. The allocation of grade and tolerance field is described in the relevant DS 1.3.3 attenuation grade this describes an area of a given attenuation. It is only considerable
36、 for pigtailed connector sets. The attenuation grade is given by a number, running from 0 (lowest tolerance) to 5. The allocation of the grade and tolerance field is described in the relevant DS Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BS
37、I EN 186220:1993 6 BSI 01-2000 1.3.4 quality grade this gives the combination of clearance grade, eccentricity grade and attenuation grade the quality grade is given by the highest number of the three mentioned subgrades Example: Pigtailed connector set 1.4 Safety 1.4.1 Optical fibre connectors, whe
38、n used as part of an optical fibre system, may emit/produce potentially hazardous radiation. The manufacturers of connectors are not obliged to mark them as such, but sufficient information should be made available in the manufacturers literature to enable the system designer to assess the degree of
39、 hazard. This information shall be given prominence in the DS. 1.4.2 The assembly instructions, included in the connector package, shall give a prominent warning to the assembler, of the necessary work practices. 1.4.3 The responsibility for the safe application of the connector lies with the system
40、 design engineer, who should refer to IEC 825. As there is no safety guide for light emitting diodes (LEDs), IEC 825 shall apply to systems using these also. 1.4.4 DSs should give the following information in a prominent position: WARNING “Care should be taken when handling small diameter optical fi
41、bre, to prevent it puncturing the skin, especially in the eye area. Direct viewing of the end of an optical fibre or a terminated optical fibre, while it is propagating energy, is not recommended unless prior assurance has been obtained as to the safe energy of the output level”. 1.5 Marking See 2.6
42、 of EN 186000-1. Example AExample BExample C Clearance grade Eccentricity grade Attenuation grade 0 2 1 1 3 1 Quality grade213 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186220:1993 BSI 01-20007 Section 2. Requirements The requiremen
43、ts specified in Section 2 and Section 3 of EN 186000-1 apply. The requirements for connector set components covered by this specification are as specified herein and in the relevant DS. 2.1 Classification The connector sets covered by this specification are classified as: The single limit (maximum o
44、r minimum) mating face dimensions for connector set configurations are given in Figure 1, Figure 2 and Figure 3, which use first angle projection according to ISO 128. The applicable configuration, arrangement, style, variants, climatic category and assessment levels shall be specified in the DS. Ty
45、pe: type LSC bayonet coupling mechanism configurations: plug/adaptor/plug plug/socket. Arrangements: kit pigtail patch cord. Environmental categories: category I. Assessment levels: level A level B level C. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled
46、Copy, (c) BSI EN 186220:1993 8 BSI 01-2000 Ref. Dimensions mmNotes min.max. A C D E G J K L M N O P Q S 6 1,3 12,25 0,65 1,3 10 3,6 2,4995 2 1,5 2,5 2 2,1 0,88 1) 2) NOTES: 1) The value is valid at room temperature (20 C) and for ferrule materials with a coefficient of expansion ! = 6.106 K1. 2) For
47、 ferrule materials with a coefficient of expansion ! s 6.106 K1 the maximum limit of A (Amax.) shall be determined from the diagram given in Annex 1. Figure 1 Plug mating face single limit dimensions Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (
48、c) BSI EN 186220:1993 BSI 01-20009 Ref. Dimensions mmNotes min.max. B C E G H I J K L M N 2,5 3,7 0,9 2,6 2,6 3,2 6 5,8 7,8 1,2 3,4 24,4 1) 2) 3) NOTES: 1) Valid at room temperature (20 C) and for rigid sleeves made of material with a coefficient of expansion ! = 6.106 K1. 2) For sleeve material wit
49、h a coefficient of expansion ! s 6.106 K1 the minimum limit of A (Amin.) shall be determined from the diagram given in Annex 1. 3) For resilient sleeve the value of A (Amin.) is replaced by a gauge insertion and/or retention force requirement specified in the relevant DS. Figure 2 Adaptor mating face single limit dimensions Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:44:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186220:1993 10