1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58components Interface standard for fibre management systems Part 1: General and guidanceThe European
2、 Standard EN 61756-1:2006 has the status of a British StandardICS 33.180.01Fibre optic interconnecting devices and passive BRITISH STANDARDBS EN61756-1:2006BS EN 61756-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 200
3、6ISBN 0 580 49019 XCross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Elect
4、ronic Catalogue or of British Standards Online.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 does not of itself confer immunity from legal obligations.Summary of pagesThis
5、 document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on
6、this subcommittee can be obtained on request to its secretary. present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the
7、UK.National forewordThis British Standard is the official English language version of EN 61756-1:2006. It is identical with IEC 61756-1:2006. The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Interconnecting devices and passi
8、ve components, which has the responsibility to: aid enquirers to understand the text;EUROPEAN STANDARD EN 61756-1 NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrote
9、chnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61756-1:2006 E ICS 33.180.01 English version Fibre optic interconnecting devices and passive componen
10、ts - Interface standard for fibre management systems Part 1: General and guidance (IEC 61756-1:2006) Dispositifs dinterconnexion et composants passifs fibres optiques -Norme dinterface pour les systmes de gestion de fibres Partie 1: Gnralits et lignes directrices (CEI 61756-1:2006) Lichtwellenleiter
11、 Verbindungselemente und passive Bauteile - Schnittstellennorm fr Einzelfasermanagementsysteme Teil 1: Allgemeines und Leitfaden (IEC 61756-1:2006) This European Standard was approved by CENELEC on 2006-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
12、ate 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
13、 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
14、electrotechnical committees of Austria, Belgium, Cyprus, 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
15、and the United Kingdom. Foreword The text of document 86B/2283/FDIS, future edition 1 of IEC 61756-1, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61756-1 o
16、n 2006-06-01. 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) 2007-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-06
17、-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61756-1:2006 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: I
18、EC 60794-2 NOTE Harmonized as EN 60794-2:2003 (not modified). IEC 60794-3 NOTE Harmonized as EN 60794-3:2002 (not modified). IEC 62134-1 NOTE Harmonized as EN 62134-1:2002 (not modified). _ 2 EN 61756-1:2006 3 CONTENTS 1 Scope 4 2 Normative references .5 3 Definitions and abbreviations 5 3.1 Definit
19、ions .5 3.2 Abbreviations 10 4 Functions of the fibre management system10 4.1 Single Circuit (SC) Management System11 4.2 Single Element (SE) Management System11 4.3 Multiple Element (ME) Management System.11 5 Parts and content of a fibre management system 11 5.1 Splice tray .12 5.2 Splice holder .
20、13 5.3 Splice Protection .13 5.4 Guiding elements.14 5.5 Bending radius 15 5.6 Fibre storage.15 5.7 Patchcords and pigtails15 5.8 Identification of fibres, fibre tubes or single elements .15 Figure 1 Single circuit management system6 Figure 2 Single element management system.7 Figure 3 Multiple elem
21、ent management system.7 Figure 4 Patchcord.8 Figure 5 Pigtail 10 Table 1 Typical Splice Protector Types and Dimensions .14 EN 61756-1:2006Annex ZA (normative) Normative references to international publications with their corresponding European publications .17 4 FIBRE OPTIC INTERCONNECTING DEVICES A
22、ND PASSIVE COMPONENTS INTERFACE STANDARD FOR FIBRE MANAGEMENT SYSTEMS Part 1: General and guidance 1 Scope This part of IEC 61756 covers general information on the subject of fibre management system (FMS) interfaces. It includes references, document structure details, definitions and the rules under
23、 which a FMS interface is created. This interface standard defines a fibre management system which is part of an optical network. It provides facilities for the direct exchange of optical signals between the incoming and outgoing fibre optic cables. In order to comply with the standard, the optical
24、functionality, physical, geometrical and mechanical requirements shall be met. These facilities comprise functional and installation aspects for fibres or ribbons like storage, fibre routing, identification, interconnection, reconfiguration, application of passive and active components, protection a
25、nd traceability. The fibre management system allows different degrees of physical separation of optical circuits. This is in order to reduce the risk of disturbing other circuits that do not belong to the same group as the ones that are to be manipulated. Depending on the grouping, guiding and splic
26、ing of the fibres from incoming and outgoing cables, the fibre management system can be a single circuit, a single element or a multiple element management system. Single circuit management describes a management system where one or more fibres of a cable element are spliced and/or stored in individ
27、ual trays. Single element management describes a management system where all fibres of a cable element are spliced and/or stored in individual trays. Multiple element management describes a management system where fibres from more than one cable element are spliced and/or stored in individual trays.
28、 The fibre management system shall be independent from one specific application or housing. It is designed in a way to allow the use for several applications in different housings, e.g. a single circuit management system can be used in a closure, enclosure and open rack. This specification is relate
29、d to both singlemode and multimode fibres. To fulfil the mentioned functions, a fibre management system is normally integrated in an enclosure, e.g. a closure, case or cabinet or it is part of an open access system like an optical distribution frame or rack. EN 61756-1:2006 5 2 Normative references
30、The following 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. IEC 60793-2, Optical fibres Part 2: Product speci
31、fications General 3 Terms definitions and abbreviations For the purposes of this document, the following terms, definitions and abbreviations apply. 3.1 Definitions 3.1.1 closure all external housings except outdoor cabinets 3.1.2 enclosure indoor housing (cabinet, cases, distribution frame) and out
32、door cabinet 3.1.3 housing closure and enclosure 3.1.4 fibre management system system to control, protect and store fibres from the incoming to the outgoing fibres 3.1.5 organiser it contains one or more splice trays and additional functional elements and can be a fibre management system or a part o
33、f a fibre management system 3.1.6 functional element additional part to fulfil the function of the given FMS, e.g. distribution element 3.1.7 splice tray structure that organises and controls storage of fibre splices in an orderly manner, together with the associated excess uncabled fibre length. It
34、 can be a splice organiser or a part of a splice organiser. There are many different names for this structure; in this document series splice tray will be used. 3.1.8 single circuit optical circuit consisting of one or more than one fibre providing one termination. EN 61756-1:2006 6 3.1.9 single ele
35、ment cable subassembly comprising one or more optical fibres inside a common covering e.g. tube or inside one groove of a grooved cable (slotted core cable). NOTE 1 Single elements provide more than one termination or circuit. NOTE 2 Fibre ribbons are single elements. 3.1.10 single circuit managemen
36、t system provides all necessary equipment to connect a defined number of incoming and outgoing fibres/cables. It comprises storage and protection of fibres/ribbons and interconnections in one or more trays The disturbance of the operated circuits by accessing any other adjacent circuit should be min
37、imised. The disturbance should stay within allowable tolerances given in related performance standards (see Figure 1) Single elementCable Single circuit trayDistribution elementFibreIEC 779/06Figure 1 Single circuit management system 3.1.11 distribution element element providing branching, holding a
38、nd distributing functions 3.1.12 single element management system provides all necessary equipment to connect a defined number of incoming and outgoing fibres/cables. It comprises storage and protection of fibres/ribbons and interconnections in one tray for each single element. One single element co
39、mprises more than one circuit (see Figure 2) EN 61756-1:2006 7 Cable Single elementSingle element trayIEC 780/06 Figure 2 Single element management system 3.1.13 multiple element management system provides all necessary equipment to connect a defined number of incoming and outgoing fibres/cables. It
40、 comprises storage and protection of fibres/ribbons and interconnections in one tray for more than one single element (see Figure 3) NOTE There are many different names for this structure, e.g. mass storage; in this standard multiple element will be used. n single elementsCable Multiple element tray
41、IEC 781/06Figure 3 Multiple element management system 3.1.14 active optical component optical component or assembly which makes use of quantum-mechanical effects or generates optical gain of signal power, or directly modulates optical signals NOTE 1 Examples include optical amplifiers. NOTE 2 Someti
42、mes optical sources and optical detectors have been designed as active optical components. EN 61756-1:2006 8 3.1.15 passive optical component an optical component or assembly which does not require any source of energy for its operation other than optical input signals, or controls the dynamic or st
43、atic characteristics of optical signals using a source of energy; an optical passive component never generates an optical gain of signal power NOTE 1 Examples include optical attenuators and passive branching devices. NOTE 2 Photo diode, which is an active component used as simple signal monitoring,
44、 might be treated as a passive optical component. 3.1.16 splice protection protection of bare fibre after the primary coating of the fibre has been stripped for the splice procedure. Additionally the splice protector reinforces the splice area and provides a possibility to mount this in a holder 3.1
45、.17 fusion splice protector component which protects the bare fibres and the weak fusion zone. The most common techniques in fibre management systems are heat shrinkable and mechanical protectors for fusion splices 3.1.18 mechanical splice splice that carry out alignment, fixing and protection of op
46、tical fibres by mechanical means 3.1.19 optical connector set complete set of connector components required to provide demountable coupling between optical fibres 3.1.20 patchcord combination of fibre cable and connectors with specified performance, used as a single unit intended to be a part of a f
47、ibre distribution system. The fibre cable of different length is terminated with connectors on each end (see Figure 4) IEC 782/06 Figure 4 Patchcord 3.1.21 breakout cable multi-fibre cable of different lengths terminated with connectors on at least one fibre cable end EN 61756-1:2006 9 3.1.22 fan-ou
48、t passive optical component providing a transition between a single ribbon into individual fibres 3.1.23 fibre-optic termination installing a component or device at the end of the fibre to suppress reflections 3.1.24 transient loss short term (ms) reversible change of optical transmission characteri
49、stics arising from optical discontinuity, physical defects and modifications of the attenuation (e.g. bend loss) normally caused by mechanical stress 3.1.25 optical performance stability stability of the system to the transient loss introduced by external disturbances of the fibres 3.1.26 uncut fibre already installed dark or active fibre, which is typically stored at the distribution point of an optical network such as cross connection cabinets or
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