1、BRITISH STANDARD BS EN 181000:1995 Harmonized system of quality assessment for electronic components Generic specification Fibre optic branching devices The European Standard EN181000:1994 has the status of a British StandardBSEN181000:1995 This British Standard, having been prepared under the direc
2、tionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15March1995 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference EPL/86 Special announcement in BSINews September1994 ISBN 0 580 2375
3、2 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted to TechnicalCommittee EPL/86, Fibre optics, upon which the following bodies were represented: BECCAMA (BEAMA Electrical Cable and Conductor Accessory Manufacturers Association) British Approva
4、ls Service for Cables British Cable Makers Confederation 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 Society of Cable Tele
5、vision Engineers Amendments issued since publication Amd. No. Date CommentsBSEN181000:1995 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 181000 7 List of references Inside back coverBSEN181000:1995 ii BSI 01-2000 National foreword Th
6、is British Standard has been prepared by Technical Committee EPL/86 and is the English language version of EN181000:1994 Generic specification: Fibre optic branching devices, published by the Electronic Components Committee (CECC) of the European Committee for Electrotechnical Standardization (CENEL
7、EC). Cross-references Publication referred to a Corresponding British Standard CECC 00109:1974 BS CECC 00109:1991 Rule of Procedure9. Certified test records CECC 00114-I:1990 BS EN 100114 Rule of Procedure14. Quality assessment procedures Part 1:1994 Approval of manufacturers and other organizations
8、 CECC 00114-II:1992 BS CECC 00114 Rule of Procedure14. Quality assessment procedures Part 2:1993 Qualification approval of electronic components CECC 86000 BS EN186000 Generic specification. Connector sets for optical fibres and cables Part 1:1994 Requirements, test methods and qualification approva
9、l procedures CECC 87000 BS EN 187000:1994 General specification for optical fibre cables CECC 88000 BS EN 188000:1994 Generic specification for optical fibres IEC 68-1:1982 BS 2011 Environmental testing Part 1.1:1989 General and guidance BS EN 60068 Environmental testing IEC 68-2-1:1990 BS EN 60068-
10、2-1:1993 Tests A. Cold IEC 68-2-2:1974 BS EN 60068-2-2:1993 Test B. Dry Heat BS 2011 Environmental testing IEC 68-2-3:1969 Part 2.1Ca:1977 Test Ca. Damp heat, steady state IEC 68-2-5:1975 Part 2.1Sa:1977 Test Sa. Stimulated solar radiation at ground level IEC 68-2-6:1982 Part 2.1 Fc:1983 Test Fc. Vi
11、bration (sinusoidal) BS EN 60068 Environmental testing IEC 68-2-7:1983 BS 60068-2-7:1993 Acceleration steady state BS 2011 Environmental testing IEC 68-2-9:1975 Part 2.2Sa:1977 Test Sa. Guidance for solar radiation testing IEC 68-2-10:1984 Part.2.1J:1989 Test J and guidance. Mould growth IEC 68-2-11
12、:1981 Part 2.1Ka:1982 Test Ka. Salt mist IEC 68-2-13:1983 Part 2.1M:1984 Test M. Low air pressure IEC 68-2-14:1984 Part 2.1N:1985 Test N. Change of temperature IEC 68-2-17:1978 Part 2.1Q:1981 Test Q. Sealing BS EN 60068 Environmental testing IEC 68-2-27:1987 BS EN 60068-2-27:1993 Test Ea and guidanc
13、e. Shock IEC 68-2-29:1987 BS EN 60068-2-29:1993 Test Eb and guidance. Bump BS 2011 Environmental testing IEC 68-2-30:1980 Part 2.1Db:1981 Test Db and guidance. Damp heat, cyclic (12+12 hour cycle) IEC 73:1991 BS EN 60073:1993 Specification for coding of indicating devices and actuators by colours an
14、d supplementary means a Where the publication referred to in the EN text has been superseded, the latest edition is listed.BSEN181000:1995 BSI 01-2000 iii Typographical error. InFigure 31, “Swivel puiley” should be read as “Swivelpulley”. A British Standard does not purport to include all the necess
15、ary 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. Publication referred to a Corresponding British Standard IEC 410:1973 BS 6001 Sampling procedures for
16、inspection by attributes Part 1:1991 Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection IEC 617 BS 3939 Graphical symbols for electrical power, telecommunications and electronics diagrams IEC 695-2-2:1991 BS 6458 Fire hazard testing for electrotechni
17、cal products Part 2 Test methods Section 2.2:1993 Needle-flame test IEC 825:1984 BS EN 60825:1992 Radiation safety of laser products, equipment classification, requirements and users guide ISO 129:1985 BS 308 Engineering drawing practice Part 2:1985 Recommendations for dimensioning and tolerancing o
18、f size ISO 286-1:1988 BS EN 20286 ISO system of limits and fits BS EN 20286-1:1992 Bases of tolerances, deviations and fits a Where the publication referred to in the EN text has been superseded, the latest edition is listed. Summary of pages This document comprises a front cover, an inside front co
19、ver, pagesi toiv, theENtitle page, pages 2 to90, 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.iv blankEUROPEAN STANDARD NORME EUROPENNE EURO
20、PISCHE NORM EN181000 July1994 UDC Descriptors: Quality, electronic components, fibre optic branching devices Englishversion Generic Specification: Fibre Optic Branching Devices Spcification gnrique: Coupleurs fibres optiques Fachgrundspezifikation: Faseroptische Verzweiger This European Standard was
21、 approved by the CENELEC Electronic Components Committee (CECC) on27January1992. 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 a
22、nd 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 respo
23、nsibility 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, N
24、etherlands, Norway, Portugal, Spain, Sweden,Switzerland and UnitedKingdom. The membership of the CECC isidentical, with the exception of the national electrotechnical committees ofGreece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisat
25、ion Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. EN181000:1994 EEN181000:1994 BSI 01-2000 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of tho
26、se 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 qualit
27、y assessment procedures for electronic components, and by the granting 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 specification was prepared by CECC WG27.
28、The text of the draft based on document CECC (Secretariat)2755 was submitted to the formal vote; together with the voting report, circulated as document CECC(Secretariat)3001, it was approved by CECC as EN181000 on27January1992. The following dates were fixed: latest date of announcement of the EN a
29、t national level (doa)1993-01-12 latest date of publication of an identical national standard (dop)1993-07-12 latest date of declaration of national standards obsolescence 1993-07-12 latest date of withdrawal of conflicting national standards (dow)2003-01-12EN181000:1994 BSI 01-2000 3 Contents Page
30、Foreword 2 Section 1. General 1.1 Scope 7 1.2 Related documents 7 1.3 Definitions 8 Section 2. Requirements 2.1 Classification 13 2.1.1 Type 13 2.1.2 Style 13 2.1.3 Variant 14 2.1.4 Climatic category 14 2.1.5 Assessment level 15 2.2 Minimum mandatory test sequence 16 2.3 Documentation 17 2.3.1 Symbo
31、ls 17 2.3.2 Specification system 17 Blank detail specifications 18 Detail specifications 18 2.3.3 Drawings 19 Projection system 19 Dimensional system 19 Intermountability 19 2.3.4 Measurements 19 Measurement method 19 Reference components 19 Gauges 19 2.3.5 Test data sheets 19 2.3.6 Instructions for
32、 use 19 2.4 Design and construction 20 2.4.1 Materials 20 2.4.2 Workmanship 20 2.5 Quality 20 2.6 Performance requirements 20 2.7 Identification and marking 20 2.7.1 Variant identification number 20 2.7.2 Component marking 21 2.7.3 Package marking 21 2.8 Packaging 21 2.9 Ordering information 21 Sect
33、ion 3. Quality assessment procedures 3.1 Primary stage of manufacture 22 3.2 Structural similarity 22 3.3 Qualification approval procedures 22 Page 3.3.1 Fixed sample procedure 22 3.3.2 Lot-by-lot and periodic procedure 22 3.3.3 Sample size 22 3.3.4 Preparation of specimens 22 3.3.5 Qualification te
34、sting 23 3.3.6 Qualification failures 23 3.3.7 Maintenance of qualification approval 23 3.3.8 Qualification report 23 3.4 Quality conformance inspection 23 3.4.1 Lot-by-lot inspection 23 Formation of inspection lots 23 Rejected lots 24 3.4.2 Periodic inspection 24 Sample size 24 Preparation of speci
35、mens 24 Periodic inspection 24 Periodic inspection failures 24 Periodic inspection report 24 3.5 Certified records of released lots 24 3.6 Delayed deliveries 24 3.7 Delivery release before completion of group B4 tests 24 3.8 Alternative test methods 25 3.9 Unchecked parameters 25 Section 4. Measurem
36、ent and environmental test procedures 4.1 Standard conditions 26 4.2 Specimen 26 4.3 Cleaning of optical surfaces 26 4.4 Optical measurement conditions 26 4.5 Measurement procedures 27 4.5.1 Visual inspection 27 4.5.2 Dimensions and mass 28 4.5.3 Examination of product 28 4.5.4 Flammability 29 4.5.5
37、 Insertion loss 29 4.5.6 Return loss 35 4.5.7 Wavelength dependence measurement 38 4.5.8 Polarization dependence of the transfer matrix 42 4.5.9 Change in transmitted optical power 42 4.5.10 Maximum input power 45 4.6 Environmental test procedures 46 4.6.1 Vibration 47EN181000:1994 4 BSI 01-2000 Pag
38、e 4.6.2 Effectiveness of fibre or ferrule retention 48 4.6.3 Static load 49 4.6.4 Pulling 50 4.6.5 Torsion 50 4.6.6 Strength of coupling mechanism 51 4.6.7 Bending moment 52 4.6.8 Bump 53 4.6.9 Shock 53 4.6.10 Crush resistance 54 4.6.11 Axial compression 55 4.6.12 Impact 56 4.6.13 Acceleration 58 4.
39、6.14 Drop 59 4.6.15 Coupling proof torque 60 4.6.16 Mould growth 61 4.6.17 Cold 62 4.6.18 Dry heat 63 4.6.19 Damp heat (steady state) 64 4.6.20 Climatic sequence 65 4.6.21 Condensation 67 4.6.22 Change of temperature 68 4.6.23 Sealing (sealed branching devices) 69 4.6.24 Sealing (water immersion) 70
40、 4.6.25 Sealing (hermetic) 71 4.6.26 Salt mist 72 4.6.27 Dust 73 4.6.28 Industrial atmosphere (sulphur dioxide) 74 4.6.29 Low air pressure 75 4.6.30 Solar radiation 76 4.6.31 Nuclear radiation 77 4.6.32 Mechanical endurance 77 4.6.33 High temperature endurance 78 4.6.34 Resistance to solvents and co
41、ntaminating fluids 79 4.6.35 Cable nutation 80 Annex A Examples of fibre optic branching device types 82 Annex B (informative) Size measurements 87 Annex C (informative) Summary of definitions from IEC Publications 88 Figure 1 Configuration A 13 Figure 2 Configuration B 13 Figure 3 Configuration C 1
42、4 Figure 4 Configuration D 14 Page Figure 5 Cut-Back Method Step a 31 Figure 6 Cut-Back Method Step b 32 Figure 7 Cut-Back Method Measurement 32 Figure 8 Substitution Method Step a 32 Figure 9 Substitution Method Measurement 33 Figure 10 Configuration B 33 Figure 11 Configuration C 33 Figure 12 Inse
43、rtion Method 3 Measurement 34 Figure 13 Return Loss Step a 35 Figure 14 Return Loss Measurement 36 Figure 15 Return loss Configuration A Measurement 36 Figure 16 Return Loss Configuration B Measurement 36 Figure 17 Return Loss Configuration C Measurement 37 Figure 18 Wavelength Selective Diagram 39
44、Figure 19 Cut Back Method1 Step a 40 Figure 20 Substitution Method2 Step a 40 Figure 21 Insertion Method3 Configuration B 41 Figure 22 Insertion Method3 Configuration C 41 Figure 23 Insertion Method3 Configuration A 41 Figure 24 Measurement Set Up 43 Figure 25 Configuration B 44 Figure 26 Configurat
45、ion C 45 Figure 27 Test Set Up 46 Figure 28 Impact Set Up 57 Figure 29 Drop test set up 59 Figure 30 Dust test set up 73 Figure 31 Cable mutation test Set Up 80 Figure 32 Non wavelength selective transmissive star 82 Figure 33 Bidirectional transmissive branching device2 2 83 Figure 34 Non wavelengt
46、h selective reflective star 83 Figure 35 Non wavelength selective reflective and transmissive star 84 Figure 36 Non wavelength selective and transmissive star 84 Figure 37 Wavelength multiplexer 85 Figure 38 Wavelength demultiplexer 86EN181000:1994 BSI 01-2000 5 Page Figure 39 Wavelength multiplexer
47、/demultiplexer 86 Table 1 Climatic Category 15 Table 2 Non-wavelength selective branching devices minimum mandatory test sequence 16 Table 3 Wavelength selective branching devices minimum mandatory test sequence 17 Table 4 Tree level CECC specification structure 18 Table 5 List of measurements proce
48、dures 27 Table 6 Insertion loss value measurement methods 30 Table 7 Wavelength selective element 38 Table 8 List of environmental test procedures 47 Table 9 Vibration preferred severities 48 Table 10 Bump preferred severities 53 Table 11 Shock preferred severities 54 Table 12 Crush resistance prefe
49、rred severities 55 Table 13 Axial compression preferred severities 56 Table 14 Impact preferred severities 57 Table 15 Acceleration preferred severities 58 Table 16 Drop preferred severities 60 Table 17 Coupling proof torque preferred severities 60 Table 18 Mould growth preferred severities 62 Table 19 Cold preferred severities 63 Table 20 Dry heat preferred severities 64 Table 21 Damp heat preferred se
