1、BRITISH STANDARDBS EN 50411-2:2008Fibre organisers and closures to be used in optical fibre communication systems Product specifications Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectorsICS 33.180.20g49g50g3g38g50g51g60g44g49g
2、42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50411-2:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30
3、September 2008 BSI 2008ISBN 978 0 580 60089 0National forewordThis British Standard is the UK implementation of EN 50411-2:2008.The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive
4、 components.A list of organizations represented on this 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.Compliance with a British Standard cannot confer im
5、munity from legal obligations. Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD EN 50411-2 NORME EUROPENNE EUROPISCHE NORM August 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr El
6、ektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50411-2:2008 E ICS 33.180.20 English version Fibre organisers and closures to be used in optic
7、al fibre communication systems - Product specifications - Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectors Organiseurs et botiers de fibres destins tre utiliss dans les systmes de communication par fibres optiques - Spcificat
8、ions de produits - Partie 2: Gnralits et lignes directrices relatives aux botiers communs aux cbles fibres optiques, aux botiers microconduits protgs, et aux connecteurs de microconduits LWL-Spleikassetten und -Muffen fr die Anwendung in LWL-Kommunikationssystemen - Produktnormen - Teil 2: Allgemein
9、es und Leitfaden fr LWL-Muffen, geschtzte Mikrorohrmuffen und Mikrorohrverbinder This European Standard was approved by CENELEC on 2008-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
10、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 ver
11、sion 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, Bulgaria, Cyprus,
12、the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50411-2:2008 - 2 - Foreword Th
13、is European Standard was prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic interconnect, passive and connectorised components. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50411-2 on 2008-04-01. The following dates were fixe
14、d: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-04-01 _ BS EN 50411-2:2008- 3 - EN 50411-2:20
15、08 Fibre organisers and closures to be used in optical fibre communication systems Product specifications Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectors Construction: Sealed or non-sealed products covering both a) optical f
16、ibre cable splicing FMS or protected microduct closures MCS or b) microduct connectors Product specification document options: The closure or connector product specifications must align with one of the following titles; labelled, EN 50411-2-X: sealed dome closures with a FMS; sealed pan closures wit
17、h a FMS; sealed inline closures with a FMS; sealed closures for ABF microducts; non-sealed closures for ABF microducts; microduct connectors for sealed closures; microduct connectors for non-sealed closures. Closure shape options: dome, pan, and inline; T, Y, and X. ABF microduct connector options:
18、straight; straight bulkhead; ID reducer/enlarger stem; ID reducer/enlarger; OD reducer/enlarger stem; OD reducer/enlarger; ID and OD reducer/enlarger stem; ID and OD reducer/enlarger; close down; liquid block; liquid block with barb; end stop. Cable seals: heat activated; cold applied; both heat and
19、 cold applied. FMS closure additional requirements: future proof expandable; wave length range, 1 260 nm up to 1 650 nm. Applications: Optical fibre cable networks for underground and/or aerial Non-pressurised Sealed closures (only) EN 61753-1 category; S (subterranean) and A (aerial) Environmental
20、protection requirements: temperature extremes; resistance to solvents and contaminating fluids; resistance to water ingress; resistance to salt mist. Mechanical protection requirements: vibration; closure crush and impact; cable entry tension, torsion and bending; resistance to shotgun fire (aerial
21、only). Common base configurations: track joint: configuration used on inline cable, with minimum of 2 cable entries; spur joint: configuration used on local feeder cable with minimum of 3 cable entries; distribution joint: configuration used on customer feed cable with minimum of 8 cable entries. Fi
22、bre Management System options: SC, SR, SE, ME, MR. Optical functionality: Transient losses: 0,5 dB at 1 550 nm and 1 dB at 1 625 nm per active circuit during test Residual losses: 0,1 dB at 1 550 nm and 1 625 nm per active circuit on test Related documents: EN 61300 series Fibre optic interconnectin
23、g devices and passive components - Basic test and measurement procedures (IEC 61300 series) EN 61753-1 Fibre optic interconnecting devices and passive components performance standard - Part 1: General and guidance for performance standards (IEC 61753-1) EN 60793-2-50 Optical fibres - Part 2-50: Prod
24、uct specifications - Sectional specification for class B single-mode fibres (IEC 60793-2-50) EN 60794-2 Optical fibre cables - Part 2: Indoor cables - Sectional specification (IEC 60794-2) EN 60794-3 Optical fibre cables - Part 3: Sectional specification - Outdoor cables (IEC 60794-3) EN 60794-5 Opt
25、ical fibre cables - Part 5: Sectional specification - Microduct cabling for installation by blowing (IEC 60794-5) ETSI EN 300 019 series Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment BS EN 50411-2:2008EN 50411-2:2008 - 4 - Contents
26、 1 Scope . 6 1.1 Rules and conventions . 6 1.2 Product definition 6 1.3 Operating environment . 7 1.4 Reliability 7 1.5 Quality assurance. 7 1.6 Safety . 7 1.7 FMS closure future proof requirement . 7 1.8 Fibre types and cable designs . 7 1.9 FMS to closure interfaces - Informative information 7 2 N
27、ormative references . 8 3 Definitions and abbreviations . 9 3.1 Definitions . 9 3.2 Abbreviations 12 4 Closure options defined . 12 4.1 Closure with FMS housing functionality . 12 4.2 ABF closure housing functionality 12 4.3 Closure shape options defined . 13 4.4 Product specification options define
28、d. 13 4.5 Common base options defined 13 4.6 Cable entry seal options . 13 4.7 Fibre management system options defined . 14 4.8 ABF microduct connector options defined . 14 5 Closure options, geometrical forms and dimensioning requirements 14 5.1 Dome and pan closure geometrical forms . 14 5.2 Inlin
29、e closure geometrical form 14 5.3 Air blown microduct geometrical forms 15 6 Closure with FMS general functional requirements . 16 6.1 Closure with FMS functional parts . 16 6.2 FMS functional parts 16 6.3 General functional requirements of a closure with FMS 17 6.4 General functional requirements o
30、f the FMS . 17 6.5 FMS - Functional options housed in closures 17 6.6 FMS splicing to closure interfaces . 17 6.7 FMS optical fibre connector to closure interfaces 19 6.8 ABF closure interface - Microduct minimum bend radius 19 7 Closure with ABF microduct connectors general functional requirements
31、. 19 7.1 Air blown fibre systems 19 7.2 Future proof closures, functional requirements 20 7.3 All closure outside profile, dimensional conventions . 20 7.4 All microduct connector outside/bulkhead profile, dimensional conventions . 21 8 General product descriptions .21 8.1 Materials . 21 8.2 Colour
32、and marking 21 8.3 Environmental, functional requirements . 22 9 Variants layouts - Closure and microduct connector 22 10 Tests . 24 10.1 Sealed closure sample size . 24 10.2 Sealed closure with FMS test sample preparation . 24 10.3 Closures with FMS optical test sample construction 24 BS EN 50411-2
33、:2008- 5 - EN 50411-2:2008 10.4 Closure with FMS test and measurement methods . 25 10.5 Closure with FMS test sequence . 25 10.6 Closure with FMS pass/fail criteria . 25 11 Performance requirements . 26 11.1 Dimensional and marking requirements 26 11.2 Sealed closure sealing, optical and appearance
34、performance criteria 26 11.3 Sealed closure environmental and mechanical performance test methods 27 11.4 Unsealed closure environmental and mechanical performance test methods 28 11.5 Microduct connector sealing, optical and appearance performance criteria 29 11.6 Microduct connector - Environment
35、and mechanical performance test methods 29 Bibliography 30 Figures Figure 1 - Dome 14 Figure 2 - Pan . 14 Figure 3 - Inline closure - End plate type (1a) 14 Figure 4 - Inline closure - Shell type - Short and fat (2a) 15 Figure 5 - Inline closure - Shell type - Long and thin (2b) 15 Figure 6 - Closur
36、e Y 15 Figure 7 - Closure T (single ports) 15 Figure 8 - Closure T (double ports) 15 Figure 9 - Closure X 16 Figure 10 - Closure functional parts diagram . 16 Figure 11 - FMS system functional parts diagram 16 Figure 12 - Small angled semi-circular, or rectangular tree type organiser . 18 Figure 13
37、- Large rectangular trays book type organiser 18 Figure 14 - Large circular/rectangular trays - Juke box type organiser 18 Figure 15 - Small circular/oval/rectangular trays - Shelf type organiser . 18 Figure 16 - Space for cables 19 Figure 17 - ABF system functional parts diagram - Microduct interce
38、pt (only) 19 Figure 18 - ABF functional parts diagram - Blow from point . 19 Figure 19 - Examples - Future proof closure expansion - Diagram . 20 Figure 20 - Examples - Closure outside profile, dimensioning conventions . 20 Figure 21 - Examples microduct connector outside/bulkhead profile . 21 Figur
39、e 22 - Example - Track joint configuration sample . 24 Figure 23 - Example - Distribution joint configuration sample 25 Tables Table 1 - Typical variant table layout - Sealed FMS closures (dome, pan and inline) EN 50411-2-X X1 - X2 - X3 - XX4 - XX5 - X6. 22 Table 2 - Typical closure and tray selecti
40、on - FMS fibre separation levels 23 Table 3 - Typical variant table layout - Sealed ABF closures EN 50411-2-X X1- X2- X3- X4- XXX5- XX6- XX7- XX823 Table 4 - Typical all ABF closure capacity selection to microduct connector capacity 23 Table 5 - Typical variant table layout - Microduct connectors -
41、Sealed and non-sealed closures EN 50411-2-X XXX/XXX1 XXX/XXX2 XX3 X4. 23 Table 6 - Sealed closure sealing, optical and appearance performance criteria . 26 Table 7 - Sealed closure environmental and mechanical performance test methods . 27 Table 8 - Unsealed closure environmental and mechanical perf
42、ormance test methods . 28 Table 9 - Microduct connectors sealing, optical and appearance performance criteria . 29 Table 10 - Microduct connector - Environment and mechanical performance test methods . 29 BS EN 50411-2:2008EN 50411-2:2008 - 6 - 1 Scope 1.1 Rules and conventions This general and guid
43、ance document provides a framework for new product specification in the series EN 50411-2-X rules and conventions under which a closure interface is created, and provides a consistent structure: headings; format; abbreviations; definitions; references; descriptions; document structure details; table
44、s; diagrams; dimensions; and product variants. This general and guidance document provides general information that defines the closure options, including the following: level of sealing, sealed or non-sealed; closure configurations, shape and/or entry port orientation; fibre management system or mi
45、croduct connectors contained within the housing; cable port entry configurations, number of ports; cable sealing method, heat or non-heat activated. In order to comply with the specification, the following closure and/or FMS requirements must be defined: sealing and optical functionality; physical d
46、imensioning, giving the maximum outer perimeters for all sizes; geometrical form and or shape; dimensioning. 1.2 Product definition A product specification shall contains the initial, start of life dimensional, optical, mechanical and environmental performance requirements of a fully installed closu
47、re in order for it to be categorised as an EN standard product. The product specification should provide external overall dimensioning of closures to fit in their external location, e.g. underground chambers, street furniture or aerial applications. A fibre splice closure product specification inclu
48、des both the parameters of the closure housing, the fibre splicing management system. These systems are always supplied together with the closure as a matched set including other functional or ancillary parts of an optical node. An air blown fibre closure product specification includes only the para
49、meters of the closure housing. Air blown fibre closures are normally supplied without a microduct connector, largely because of uncertainty over connector method, microduct sizes, quantity and type of connector used. This closure specification allows single mode fibre to be used, and covers all IEC or EN standards of optical fibre cables as listed in the normative references with their various fibre,
