1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50411-3-2:2011Fibre organisers and closures to be used in optical fibre communication systems Product specificationsPart 3-2: Singlemode mechanical fibre spliceBS EN 50411-
2、3-2:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50411-3-2:2011.The UK participation in its preparation was entrusted to Technical Committee GEL/86/2, Fibre optic interconnecting devices and passive components.A list of organizations represented on this
3、committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 66526 4 ICS 33.180.20 Compliance with a British Standard cannot confer immunity fr
4、om legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2011.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 50411-3-2:2011EUROPEAN STANDARD EN 50411-3-2 NORME EUROPENNE EUROPISCHE NORM March 2011 CE
5、NELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldw
6、ide for CENELEC members. Ref. No. EN 50411-3-2:2011 E ICS 33.180.20 English version Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-2: Singlemode mechanical fibre splice Organiseurs et botiers de fibres destins tre utiliss dans les sy
7、stmes de communication par fibres optiques - Spcifications de produit - Partie 3-2: Epissures mcaniques de fibres unimodales LWL-Spleikassetten und -Muffen fr die Anwendung in LWL Kommunikationssystemen - Produktnorm - Teil 3-2: Mechanische Spleie fr Einmodenfasern This European Standard was approve
8、d by CENELEC on 2011-01-02. 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 nationa
9、l 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 a
10、nd notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
11、Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50411-3-2:2011EN 50411-3-2:2011 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 86BXA, Fibre opt
12、ic interconnect, passive and connectorised components. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50411-3-2 on 2011-01-02. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENEL
13、EC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-01-02 latest date by which the national st
14、andards conflicting with the EN have to be withdrawn (dow) 2014-01-02 _ BS EN 50411-3-2:2011 3 EN 50411-3-2:2011 Fibre organisers and closures to be used in optical fibre communication systems Product specifications Part 3-2: Singlemode mechanical fibre splice Description Performance Type: Fibre spl
15、ice Application: EN 61753-1:2007, Category U with extension of lower temperature to - 40 C Style: Mechanical Operating wavelength: 1 260 nm to 1 625 nm Attenuation grades Grade B: 0,25 dB maximum (97 %) Grade C: 0,50 dB maximum (97 %) Fibre category EN 60793-2-50 Types B1.1 and B1.3 Return loss grad
16、es Grade 1: 60 dB Grade 2: 45 dB Grade 3: 35 dB Related documents: EN 60793-2-50 Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres (IEC 60793-2-50) EN 60794-2-50 Optical fibre cables Part 2-50: Indoor cables Family specification for simplex and d
17、uplex cables for use in terminated cable assemblies (IEC 60794-2-50) EN 61300 series Fibre optic interconnecting devices and passive components Basic test and measurement procedures (IEC 61300 series) EN 61753-1:2007 Fibre optic interconnecting devices and passive components performance standard Par
18、t 1: General and guidance for performance standards (IEC 61753-1:2007) Outline and maximum dimensions: LHWVariant Dimension W mm Dimension H mm Dimension L mm Type M1 3,8 6,4 38 Type M2 4,0 4,0 36 Type M3 3,2 3,2 45 Type M4 4,2 4,2 44 Type M5 4,0 4,0 40 Type M6 5,0 65 BS EN 50411-3-2:2011EN 50411-3-
19、2:2011 4 Contents 1 Scope . 51.1 Product definition . 51.2 Interoperability . 51.3 Expected performance . 51.4 Operating environment . 51.5 Reliability . 51.6 Quality assurance 52 Normative references 63 Description 63.1 General 63.2 Mechanical splice . 73.3 Materials 73.4 Dimensions 73.5 Colour and
20、 marking 74 Variants . 85 Dimensional requirements 96 Tests 96.1 Introduction 96.2 Test sample preparation . 96.3 Test and measurement methods 106.4 Pass/fail criteria . 107 Test report . 108 Performance requirements 108.1 Dimensional and marking requirements 108.2 Installation yield requirement 108
21、.3 Optical performance requirements 11Annex A (normative) Fibre type . 17Annex B (normative) Sample size and product sourcing requirements . 18Bibliography 19Figures Figure 1 Outline and maximum dimensions . 9Tables Table 1 Optical fibre mechanical splice, for category U variants 8Table 2 Test detai
22、ls and requirements. 11Table A.1 Fibre type characteristics 17Table B.1 Sample size per test 18BS EN 50411-3-2:2011 5 EN 50411-3-2:2011 1 Scope 1.1 Product definition This European Standard contains the initial, start of life dimensional, optical, mechanical and environmental performance requirement
23、s, which a singlemode mechanical spliceshall meet in order for it to be categorised as an EN standard product. Since different variants and grades of performance are permitted, product marking and identification details are given in 3.5. Although in this document the product is qualified for EN 6079
24、3-2-50 types B1.1 and B1.3 singlemode fibres, it may also be suitable for other fibre types. 1.2 Interoperability The installed mechanical splice fits into a fibre management system with optical fibre splice cassettes or splice trays. This European Standard specifies the following two physical inter
25、face dimensions: a) cross sectional profile with width, height or diameter (in millimetres); b) length (in millimetres). 1.3 Expected performance In this document, the performance of a mechanical splice is given with identical fibres only. Losses associated with fibre cladding diameter and mode fiel
26、d mismatch are not taken into account. The measured attenuation is a function of the core concentricity, cladding non-circularity and alignment capability. The optical return loss performance is a function of the index matching gel and the fibre end face preparation. 1.4 Operating environment The te
27、sts selected combined with the severities and durations are representative of an outdoor enclosed environment defined as category U in EN 61753-1. To ensure that the product can be used in closures, boxes or street cabinet for categories A, G and S (as defined EN 61753-1) the specified lower tempera
28、ture is extended to - 40 C and requirements for temporary flooding have been added. 1.5 Reliability Whilst the anticipated service life expectancy of the product in this environment is 20 years, compliance with this specification does not guarantee the reliability of the product. This should be pred
29、icted using a recognised reliability assessment programme. 1.6 Quality assurance Compliance with this specification does not guarantee the manufacturing consistency of the product. This standard does not cover quality insurance. BS EN 50411-3-2:2011EN 50411-3-2:2011 6 2 Normative references The foll
30、owing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 60793-2-50 Optical fibres Part 2-50: Product specifica
31、tions Sectional specification for class B single-mode fibres (IEC 60793-2-50) EN 61300 series Fibre optic interconnecting devices and passive components Basic test and measurement procedures (IEC 61300 series) EN 61300-2-1 Part 2-1: Tests Vibration (sinusoidal) (IEC 61300-2-1) EN 61300-2-4 Part 2-4:
32、 Tests Fibre/cable retention (IEC 61300-2-4) EN 61300-2-5 Part 2-5: Tests Torsion/twist (IEC 61300-2-5) EN 61300-2-7 Part 2-7: Tests Bending moment (IEC 61300-2-7) EN 61300-2-9 Part 2-9: Tests Shock (IEC 61300-2-9) EN 61300-2-17 Part 2-17: Tests Cold (IEC 61300-2-17) EN 61300-2-18 Part 2-18: Tests D
33、ry heat High temperature endurance (IEC 61300-2-18) EN 61300-2-22 Part 2-22: Tests Change of temperature (IEC 61300-2-22) EN 61300-2-26 Part 2-26: Tests Salt mist (IEC 61300-2-26) EN 61300-2-27 Part 2-27: Tests Dust Laminar flow (IEC 61300-2-27) EN 61300-2-33 Part 2-33: Tests Assembly and disassembl
34、y of fibre optic closures (IEC 61300-2-33) EN 61300-2-45 Part 2-45: Tests Durability test by water immersion (IEC 61300-2-45) EN 61300-2-46 Part 2-46: Tests Damp heat cyclic (IEC 61300-2-46) EN 61300-3-3:2009 Part 3-3: Examinations and measurements Active monitoring of changes in attenuation and ret
35、urn loss (IEC 61300-3-3:2009) EN 61300-3-4:2001 Part 3-4: Examinations and measurements Attenuation (IEC 61300-3-4:2001) EN 61300-3-6:2009 Part 3-6: Examinations and measurements Return loss (IEC 61300-3-6:2008) EN 61300-3-7:2001 Part 3-7: Examinations and measurements Wavelength dependence of atten
36、uation and return loss (IEC 61300-3-7:2000) EN 61300-3-28:2002 Part 3-28: Examinations and measurements Transient loss (IEC 61300-3-28:2002) EN 61753-1:2007 Fibre optic interconnecting devices and passive components performance standard Part 1: General and guidance for performance standards (IEC 617
37、53-1:2007) 3 Description 3.1 General A singlemode mechanical fibre splice is a passive optical interconnection component which provides optical and mechanical continuity between two optical fibres or cables. The products described in this specification are based on mechanical alignment of two cleave
38、d fibres. The fibres are protected against ingress of dust or water by a sealing material, generally an index matching gel, to both minimise reflections and to improve attenuation at the glass/gel/glass interface. BS EN 50411-3-2:2011 7 EN 50411-3-2:2011 Some splices may have a limited reinstallatio
39、n capability. In this case the re-installability shall be clearly stated and the re-installation test 10 in 8.3 shall be conducted. 3.2 Mechanical splice An optical fibre mechanical splice body contains the following pre-assembled elements: an alignment device; a sealing and index matching gel insid
40、e; a fibre alignment activation device like a spring, wedge or plunger; a fibre clamping or fixing able to withstand axial fibre loads. Mechanical splices designed for use with cables shall contain strain relief fixing. 3.3 Materials Materials which are not specified or which are not specifically de
41、scribed are left to the discretion of the manufacturer. However, the following requirements shall be met: all materials that are likely to come in contact with personnel shall meet appropriate health and safety regulations; the sealing and index matching materials shall be compatible with the materi
42、als of the fibres and the mechanical splice parts; all components of the splice shall be resistant to solvents and degreasing agents that are typically used to clean and degrease fibres and cables; metallic parts shall be resistant to the corrosive influences they may encounter during the lifetime o
43、f the product; exterior polymer materials shall be resistant to mould growth. 3.4 Dimensions Outline dimensions are specified. All other dimensions are left to the discretion of the manufacturer. 3.5 Colour and marking Marking of the product or packaging shall be in the following order of precedence
44、: a) identification of supplier; b) manufacturing date code: year/week; c) manufacturers part number; d) variant identification number. There is no preferred colour specified. BS EN 50411-3-2:2011EN 50411-3-2:2011 8 4 Variants Table 1 Optical fibre mechanical splice, for category U variants EN 50411
45、32 XX1 X2 X3 X4 X5Variant No. XX1Mechanical splice type (common profile) M1 Mechanical splice Type 1 M2 Mechanical splice Type 2 M3 Mechanical splice Type 3 M4 Mechanical splice Type 4 M5 Mechanical splice Type 5 M6 Mechanical cable splice Type 6 Variant No. X2Attenuation grade B 0,25 dB maximum C 0
46、,50 dB maximum Variant No. X3Return loss grade capability (depends on cleave/process) 1 60 dB 2 45 dB 3 35 dB Variant No. X4and X5Fibre types to be spliced P Primary coated 125/250 m S Secondary coated 125/900 m A Any single fibre types P or S R Reinforced cable BS EN 50411-3-2:2011 9 EN 50411-3-2:2
47、011 5 Dimensional requirements LHWVariant Description Dimension W 0,1 mm Dimension H 0,1 mm Dimension L 1 mm mm mm mm Type M1 Mechanical Type M1 3,8 6,4 38 Type M2 Mechanical Type M2 4,0 4,0 36 Type M3 Mechanical Type M3 3,2 3,2 45 Type M4 Mechanical Type M4 4,2 4,2 44 Type M5 Mechanical Type M5 4,0
48、 4,0 40 Type M6 Mechanical Type M6 5,0 65 Figure 1 Outline and maximum dimensions 6 Tests 6.1 Introduction The mechanical and environmental performance of a fibre splice is vital to an optical cabling system. The purpose of testing is to demonstrate that a mechanical splice remains functional under defined environmental conditions, without failures. Optical performance testing is accomplished by subjecting the test specimen to a number of mechanical and environmental conditions and by measuring any optical performance deviations at prescribed intervals during and after
