BS-EN-186110-1995.pdf

BRITISH STANDARD BS EN 186110:1995 Harmonized system of quality assessment for electronic components Sectional specification Connector sets for optical fibres and cables Type FC The European Standard EN 186110:1994 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186110:1995 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 April 1995 © BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference EPL/86 Draft announced in BSI News December 1994 ISBN 0 580 24022 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee EPL/86, Fibre optics, 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 British Telecommunications plc Department of Trade and Industry (National Physical Laboratory) ERA Technology Ltd. Federation of the Electronics Industry Fibreoptic Industry Association (FIA) Ministry of Defence National Supervising Inspectorate (BSI QA) Optical Sensors Collaborative Association Society of Cable Television Engineers Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186110:1995 © BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 1861103 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 186110:1995 ii © BSI 12-1999 National foreword This British Standard has been prepared by Technical Committee EPL/86 and is the English language version of EN 186110:1994, Sectional specification: Connector sets for optical fibres and cables. Type FC, published by the European Committee for Electrotechnical Standardization (CENELEC) Electronic Components Committee (CECC). 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. Cross-references Publication referred toCorresponding British Standard EN 186000-1BS EN 186000-1:1994 Harmonized system of quality assessment for electronic components. Generic specification. Connector sets for optical fibres and cables Part 1: Requirements, test methods and qualification approval procedures IEC 825BS EN 60825:1992 Radiation safety of laser products, equipment classification, requirements and users guide Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, 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 sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 186110 June 1994 Descriptors: Quality, electronic components, connector sets English version Sectional specification: Connector sets for optical fibres and cables Type FC Spécification intermédiaire: Jeux de connecteurs pour fibres et câbles optiques Type FC Rahmenspezifikation: Steckverbindersätze für Lichtwellenleiter und Lichtwellenleiterkabel Bauart FC This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on 20 June 1994. 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 standards may be obtained on application to the Central Secretariat 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 language and notified to the Central 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, Sweden, 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 Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels © 1994 Copyright reserved to CENELEC members Ref. No. EN 186110:1994 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 © BSI 12-1999 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 quality. 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 are thereby acceptable in all member countries without further testing. This European Standard was prepared by CECC WG 26, “Fibre Optic Connectors”. The text of the draft based on document CECC 86110 Issue 1:1993 was submitted to the formal vote for conversion to a European Standard; together with the voting report, circulated as document CECC(Secretariat)3564. It was approved by CECC as EN 186110 on 20 June 1994. The following dates were fixed: Contents Page Foreword2 Section 1. General 1.1Scope3 1.2Related documents3 1.3Definitions3 1.4Safety3 1.5Marking3 Section 2. Requirements 2.1Classification4 2.2Reference components7 2.3Gauges7 Section 3. Quality assessment procedures 3.1Qualification approval8 3.1.1 Qualification by fixed sample procedure8 Sample size8 Preparation of specimens8 Testing8 3.1.2 Qualification by lot by lot and periodic procedure8 3.2Quality conformance inspection8 3.2.1 Lot by lot inspection schedule8 3.2.2 Periodic inspection schedule8 Sample size9 Preparation of specimens9 Testing9 3.3Delayed deliveries9 Figure 1 Plug mating face limit dimensions4 Figure 2 Adapter mating face limit dimensions5 Figure 3 Socket mating face limit dimensions6 Table 15 Table 26 Table 37 latest date of announcement of the EN at national level(doa) 1994-11-07 latest date of publication of an identical national standarda(dop) 1995-05-07 latest date of withdrawal of conflicting national standardsa(dow) 1996-05-07 a National standard (excluding national implementation of IECQ Specifications). Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 © BSI 12-19993 Section 1. General 1.1 Scope This specification covers a family of fibre optic connector sets classified as Type FC. Type FC is a single way keyed connector characterized by a M8 × 0,75 screw thread coupling mechanism and spring-loaded, cylindrical, butting ferrules of 2,5 mm nominal diameter. This specification contains the requirements for type FC connector sets. Detail specifications (DSs) shall be prepared using the pro-forma general blank detail specifications (BDS) associated with the generic specification. For example: EN 186002, environmental category II. When completed, the DS applicable to this SS shall be re-numbered in accordance with CECC 00700 (Section IV) Issue 1, clause 4.2. For example: CECC 86 112-XXX Type FC Environmental Category II 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 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. 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 classification, requirements and users guide. 1.3 Definitions 1.3.1 the PC style this style of connector incorporates a shaped, as opposed to a flat, endface to improve optical performance by ensuring intimate contact at the core interface 1.4 Safety 1.4.1 Optical fibre connectors, when 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 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 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 fibre, 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 of EN 186000-1. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 4 © BSI 12-1999 Section 2. Requirements The requirements 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 or minimum) mating face dimensions for each connector set configuration are given in Figure 1, Figure 2 and Figure 3, which use first angle projection. The applicable configuration, arrangement, style, variants, climatic category and assessment level shall be specified in the DS. Type: type FC screw thread coupling configurations: plug/adapter/plug plug/socket. Arrangements: kit pigtail patch cord. Environmental categories:The DS writer shall select the appropriate BDS for the chosen environmental category. Assessment levels: level A level B level C. Figure 1 Plug mating face limit dimensions Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 © BSI 12-19995 Table 1 Ref. mm Notes Min.Max. a b c d e f 4,4 2,92 1,77 2,5 6,0 4,05 2,75 1 dia dia dia 4 gM8 × 0,75 6H3 h i j k 3,5 3,95 0,5 2,14 2 3 NOTE 1A chamfer or radius is allowed to a maximum depth of 1,2 mm from the ferrule face. NOTE 2Dimensions h and i shall be measured with the coupling nut in its most forward position. NOTE 3M8 × 0,75 indicates metric screw thread with nominal diameter 8 mm and pitch 0,75 mm. 6H represents the class of fit. NOTE 4Dimension “e” is for the plug in the free condition. When mated, the ferrule retracts as a result of the contacting ferrule end faces. The maximum value of “e” in the mated condition and the maximum axial force required to achieve this shall be given in a detail specification. NOTE 5Surface finish shall be defined in the DS and shall be consistent with the associated toleranced dimensions to ensure that performance requirements are met. NOTE 6All cylindrical components shall be capable of taking up a common axis. Figure 2 Adapter mating face limit dimensions Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 6 © BSI 12-1999 Table 2 Ref. mm Notes Min.Max. a b c d e f 4,18 6,05 3,6 4,38 2,9 1,75 1 dia dia dia 3 gM8 × 0,75 6g2 h i j k n 0,4 2,8 2,15 2,55 3,9 3 NOTE 1For non-resilient alignment sleeves a minimum dimension shall be given in a DS. Resilient alignment sleeves shall be gauged. The gauge force shall be defined in the DS. NOTE 2M8 × 0,75 indicates metric screw thread with nominal diameter 8 mm and pitch 0,75 mm. 6g represents the class of fit. NOTE 3The minimum rectangular envelope for the keyway is defined by dimensions k and f. NOTE 4Surface finish shall be defined in the DS and shall be consistent with the associated toleranced dimensions to ensure that the performance requirements are met. NOTE 5All cylindrical components shall be capable of taking up a common axis. Figure 3 Socket mating face limit dimensions Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 © BSI 12-19997 Table 3 2.2 Reference components Reference component(s), if required, shall be defined in the DS. 2.3 Gauges Gauge(s), if required, shall be defined in the DS. Ref. mm Notes Min.Max. a b c d e f 4,18 6,05 3,6 4,38 2,9 1,75 1 dia dia dia 3 gM8 × 0,75 6g2 h i j k 0,4 2,8 2,15 3,9 3 NOTE 1Dimension “a” shall be capable of accepting a ferrule of maximum diameter 2,500 mm. NOTE 2M8 × 0,75 indicates metric screw thread with nominal diameter 8 mm and pitch 0,75 mm. 6g represents the class of fit. NOTE 3The minimum rectangular envelope for the keyway is defined by dimensions k and f. NOTE 4Surface finish shall be defined in the DS and shall be consistent with the associated toleranced dimensions to ensure that the performance requirements are met. NOTE 5All cylindrical components shall be capable of taking up a common axis. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:43:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 186110:1994 8 © BSI 12-1999 Section 3. Quality assessment procedures The quality assessment procedure