1、BRITISH STANDARD BS EN 186220:1996 Harmonized system of quality assessment for electronic components Sectional specification: Connector sets for optical fibres and cables TypeLSC The European Standard EN 186220:1993 has the status of a British Standard ICS 33.180.20BSEN186220:1996 This British Stand
2、ard, having been prepared under the directionof the ElectrotechnicalSector Board, was published underthe authorityof the Standards Boardand comes intoeffect on 15 June 1996 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference EPL/86/2 Draft announced in B
3、SI News March 1996 ISBN 0 580 25665 0 Committees responsible for this BritishStandard The preparation of this British Standard was entrusted by Technical Committee EPL/86, Fibre optics, to Subcommittee EPL/86/2, Fibre optic interconnecting devices and passive components, upon which the following bod
4、ies were represented: BECCAMA (BEAMA Electrical Cable and Conductor Accessory Manufacturers Association) British Approvals Service for Cables British Cable Makers Confederation British Telecommunications plc Department of Trade and Industry (National Physical Laboratory) Federation of the Electronic
5、s Industry Ministry of Defence National Supervising Inspectorate (BSI PC) Society of Motor Manufacturers and Traders Ltd. Amendments issued since publication Amd. No. Date CommentsBSEN186220:1996 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Te
6、xt of EN 186220 5 List of references Inside back coverBSEN186220:1996 ii BSI 01-2000 National foreword This British Standard has been prepared by Subcommittee EPL/86/2 and is the English language version of EN186220:1993 Sectional specification: Connector sets for optical fibres and cables. Type LSC
7、 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 application. Compliance with a Bri
8、tish Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard EN 186000-1:1993 BS EN 186000 Harmonized system of quality assessment for electronic components. Generic specification. Connector sets for optical fibres a
9、nd cables BS EN 186000-1:1994 Requirements, test methods and qualification approval procedures IEC 825 BS 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 front cover, pagesi andii,
10、theEN title page, pages2 to16, 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN186220 Decem
11、ber1993 Descriptors: Quality, electronic components, connector sets, optical fibres and cables English version Sectional specification: Connector sets for optical fibres and cables Type LSC Spcification intermdiaire: Jeux de connecteurs pour fibres et cbles optiques Type LSC Rahmenspezifikation: Ste
12、ckverbinderstze fr Lichtwellenleiter und Lichtwellenleiterkabel Bauart LSC This European Standard was approved by the CENELEC Electronic Components Committee on 13 February 1992. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving t
13、his 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 General Secretariat of the CECC or to any CENELEC member. This European Standard exists in three of
14、ficial 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 CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnic
15、al committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical committees of
16、Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. E
17、N 186220:1993 EEN186220:1993 BSI 01-2000 2 Foreword 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 qua
18、lity. The object of the System is to facilitate international 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
19、are thereby acceptable in all member countries without further testing. This European Standard was prepared by CECCWG 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)3
20、012 it was approved by CECC as EN 186220 on 13 February 1992. The following dates were fixed: Contents Page Foreword 2 Section 1. General 1.1 Scope 5 1.2 Related Documents 5 1.3 Definitions 5 1.4 Safety 6 1.5 Marking 6 Section 2. Requirements 2.1 Classification 7 2.2 Reference Components 10 2.3 Gaug
21、es 10 2.4 Mounting Requirements 10 2.5 Quality Grade 10 Section 3. Quality Assessment Procedures 3.1 Qualification Approval 11 3.2 Quality Conformance Inspection 11 3.3 Delayed Deliveries 12 Annex 1 (informative) Determination of single limit mating face dimensions (min. or max.) for materials with
22、a coefficient ofexpansion ! s 6.10 6K 1 13 Annex 2 (informative) Tolerance fields for ferrule and sleeve for clearance grade 0 to 5 15 Figure 1 Plug mating face single limit dimensions 8 Figure 2 Adaptor mating face single limit dimensions 9 Figure 3 Socket mating face single limit dimensions 10 lat
23、est date of announcement of the EN at national level (doa) 1992-12-15 latest date of publication of an identical national standard (dop) 1993-06-15 latest date of declaration of national standards obsolescence 1993-06-15 latest date of withdrawal of conflicting national standards (dow) 2002-12-15EN1
24、86220:1993 BSI 01-2000 34 blankEN186220:1993 BSI 01-2000 5 Section 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 of2,5mm nominal diameter. This specification contains
25、 the requirements for type LSC connector sets. Detail specifications (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 accor
26、dance with CECC 00700 (Section IV) Issue 1, clause4.2, as 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 edition
27、s indicated were valid. All standards are subject to revision, 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 Interna
28、tional Standards. References made to a specific clause or 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 clas
29、sification, requirements and users guide. ISO 8015, Technical 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
30、within the same DS the connectors are specified with a quality 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. T
31、he clearance grade is given by a number, running from 0 (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 conce
32、ntricity to the axis of the plug. This information is only 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 describe
33、s an area of a given attenuation. It is only considerable 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 DSEN186220:1993 6 BSI 01-2000 1.3.4 quality grade t
34、his 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, when used as part of an optical fibre system, may emit/
35、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 hazard. This information shall be given prominence
36、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 design engineer, who should refer to IEC825. As the
37、re is no safety guide for light emitting diodes (LEDs), IEC825 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 fibre, to prevent it puncturing the skin, especially in
38、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 of EN186000-1. Example A Example B Example C Clearanc
39、e grade Eccentricity grade Attenuation grade 0 2 1 1 3 1 Quality grade 2 1 3EN186220:1993 BSI 01-2000 7 Section 2. Requirements The requirements specified in Section2 and Section3 of EN186000-1 apply. The requirements for connector set components covered by this specification are as specified herein
40、 and in the relevant DS. 2.1 Classification The connector sets covered by this specification are classified as: The single limit (maximum or 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 IS
41、O128. The applicable configuration, arrangement, style, variants, climatic category and assessment levels shall be specified in the DS. Type: type LSC bayonet coupling mechanism configurations: plug/adaptor/plug plug/socket. Arrangements: kit pigtail patch cord. Environmental categories: category I.
42、 Assessment levels: level A level B level C.EN186220:1993 8 BSI 01-2000 Ref. Dimensions mm Notes 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 e
43、xpansion ! = 6.10 6K 1 . 2)For ferrule materials with a coefficient of expansion ! s 6.10 6K 1the maximum limit of A (A max. ) shall be determined from the diagram given inAnnex 1. Figure 1 Plug mating face single limit dimensionsEN186220:1993 BSI 01-2000 9 Ref. Dimensions mm Notes min. max. B C E G
44、 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 ! = 6.10 6K 1 . 2)For sleeve material with a coefficient of expansion ! s 6.10 6K 1the minimum limit of A (A min. ) sh
45、all be determined from the diagram given inAnnex 1. 3)For resilient sleeve the value of A (A min. ) is replaced by a gauge insertion and/or retention force requirement specified in the relevant DS. Figure 2 Adaptor mating face single limit dimensionsEN186220:1993 10 BSI 01-2000 2.2 Reference Compone
46、nts Reference component(s), if required, shall be defined in the DS. 2.3 Gauges Gauge(s), if required, shall be defined in the DS. 2.4 Mounting Requirements Mounting and alignment requirements shall be specified in the DS. 2.5 Quality Grade The DS shall state whether a quality grade is applicable. W
47、hen a grade is required the DS shall state the levels and tolerance fields for the quality grade which includes clearance grade, eccentricity grade and attenuation grade (see1.3). Ref. Dimensions mm Notes 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 12,45 5,8 7,8 1,2 3,4 1)2)3) NOTES: 1
48、)Valid at room temperature (20 C) and for rigid sleeves made of material with a coefficient of expansion ! = 6.10 6K 1 . 2)For sleeve material with a coefficient of expansion ! s 6.10 6K 1the minimum limit of A (A min. ) shall be determined from the diagram given inAnnex 1. 3)For resilient sleeve th
49、e value of A (A min. ) is replaced by a gauge insertion and/or retention force requirement specified in the relevant DS. Figure 3 Socket mating face single limit dimensionsEN186220:1993 BSI 01-2000 11 Section 3. Quality Assessment Procedures The quality assessment procedures of EN186000-1 Section3 apply. 3.1 Qualification Approval 3.1.1 Qualification by Fixed Sample Procedure When specified, the fixed
