SIST EN 61274-1:2008
(Main)Adaptors for fibre optic connectors -- Part 1: Generic specification
Adaptors for fibre optic connectors -- Part 1: Generic specification
This part of IEC 61274 applies to fibre optic adaptors for all types, sizes and structures of optical fibre connectors. It includes: - adaptor requirements; - quality assessment procedures. This standard does not cover test and measurement procedures, which are described in IEC 61300-1, IEC 61300-2 and IEC 61300-3.
Kupplungen f�r Lichtwellenleiter - Teil 1: Fachgrundspezifikation
Raccords de connecteurs de fibres optiques -- Partie 1: Sp�cification g�n�rique
Applicable aux raccords individuels à fibres optiques tels que: - raccords pour connecteur une fiche à une fiche de type identique de connecteur à fiche; - raccords pour connecteur une fiche à un type différent de connecteur à fiche; - raccords pour lier un connecteur pour fibres optiques à d'autres dispositifs optiques, tels que les DELs, les interrupteurs, etc. La spécification comprend: - les qualités nécessaires des raccords; - les procédures d'assurance de la qualité. L'évolution technique spécifique par rapport à l'édition précédente est la mise à jour de la classification, du système de spécification et du système de normalisation.
Prilagodilniki (adapterji) za optične konektorje - 1. del: Rodovna specifikacija (IEC 61274-1:2007)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Adaptors for fibre optic connectors - Part 1: Generic specification (IEC 61274-1:2007)Raccords de connecteurs de fibres optiques - Partie 1: Spécification générique (CEI 61274-1:2007)Kupplungen für Lichtwellenleiter - Teil 1: Fachgrundspezifikation (IEC 61274-1:2007)Ta slovenski standard je istoveten z:EN 61274-1:2008SIST EN 61274-1:2008en33.180.20ICS:SIST EN 61274-1:19971DGRPHãþDSLOVENSKI
STANDARDSIST EN 61274-1:200801-marec-2008
EUROPEAN STANDARD EN 61274-1 NORME EUROPÉENNE
EUROPÄISCHE NORM January 2008
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische 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 61274-1:2008 E
ICS 33.180.20 Supersedes EN 61274-1:1997
English version
Adaptors for fibre optic connectors -
Part 1: Generic specification (IEC 61274-1:2007)
Raccords de connecteurs
de fibres optiques -
Partie 1: Spécification générique (CEI 61274-1:2007)
Kupplungen für Lichtwellenleiter -
Teil 1: Fachgrundspezifikation
(IEC 61274-1:2007)
This European Standard was approved by CENELEC on 2007-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of 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, Bulgaria, 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 and the United Kingdom.
EN 61274-1:2008
– 2 – Foreword The text of document 86B/2486/FDIS, future edition 2 of IEC 61274-1, 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 61274-1 on 2007-12-01. This European Standard supersedes EN 61274-1:1997. The specific technical changes from EN 61274-1:1997 include the updating of the classification, specification system and standardization system. 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)
2008-09-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2010-12-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61274-1:2007 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: IEC 60874 NOTE
Harmonized in EN 60874 series (not modified). IEC 61274-1-1 NOTE
Harmonized as EN 61274-1-1:2006 (not modified). IEC 61300-1 NOTE
Harmonized as EN 61300-1:2003 (not modified). IEC 61300-2 NOTE
Harmonized in EN 61300-2 series (not modified). IEC 61300-3 NOTE
Harmonized in EN 61300-3 series (not modified). IEC 61754-2 NOTE
Harmonized as EN 61754-2:1997 (not modified). IEC 61754-4 NOTE
Harmonized as EN 61754-4:1997 (not modified). IEC 61754-13 NOTE
Harmonized as EN 61754-13:2006 (not modified). __________
– 3 – EN 61274-1:2008 Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
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.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60027 Series Letter symbols to be used in electrical technology EN 60027 Series
IEC 60050-731
-1) International Electrotechnical Vocabulary (IEV) -
Chapter 731: Optical fibre communication - -
IEC 60410 -1) Sampling plans and procedures for inspection by attributes - -
IEC 60617 Data-base Graphical symbols for diagrams - -
IEC 60695-11-5 -1) Fire hazard testing -
Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance EN 60695-11-5 20052)
IEC 60825-1 -1) Safety of laser products -
Part 1: Equipment classification and requirements EN 60825-1 20072)
IEC 61300 Series Fibre optic interconnecting devices and passive components - Basic test and measurement procedures EN 61300 Series
IEC 61753 Series Fibre optic interconnecting devices and passive components performance standard EN 61753 Series
IEC 61753-1 -1) Fibre optic interconnecting devices and passive components performance standard -
Part 1: General and guidance for performance standards EN 61753-1 2007
IEC 61754 Series Fibre optic connector interfaces
EN 61754 Series
IEC 61755 Series Fibre optic connector optical interfaces
EN 61755
Series
IEC/TR 61930 -1) Fibre optic graphical symbology - -
IEC/TR 61931 -1) Fibre optic - Terminology - -
1) Undated reference. 2) Valid edition at date of issue.
EN 61274-1:2008
– 4 – Publication Year Title EN/HD Year IEC QC 001002-2 1998 IEC Quality Assessment System for Electronic Components (IECQ) - Rules of Procedure -
Part 2: Documentation - -
IEC QC 001002-3 2005 IEC Quality Assessment System for Electronic Components (IECQ) - Rules of Procedure -
Part 3: Approval procedures - -
ISO 129-1 -1) Technical drawings - Indication of dimensions and tolerances -
Part 1: General Principles - -
ISO 286-1 -1) ISO system of limits and fits -
Part 1: Bases of tolerances, deviations and fits EN 20286-1 19932)
ISO 1101 -1) Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out EN ISO 1101 20052)
ISO 8601 -1) Data elements and interchange formats - Information interchange - Representation of dates and times - -
INTERNATIONAL STANDARD IECCEI NORME INTERNATIONALE61274-1Second editionDeuxième édition2007-04 Adaptors for fibre optic connectors – Part 1:
Generic specification
Raccords de connecteurs de fibres optiques – Partie 1:
Spécification générique
For price, see current cataloguePour prix, voir catalogue en vigueur PRICE CODE CODE PRIX U Commission Electrotechnique InternationaleInternational Electrotechnical Commission
– 2 – 61274-1 © IEC:2007 CONTENTS FOREWORD.3 INTRODUCTION.5
1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Requirements.9 4.1 Classification.9 4.2 Documentation.12 4.3 Standardization system.15 4.4 Design and construction.19 4.5 Quality.20 4.6 Performance.20 4.7 Identification and marking.20 4.8 Packaging.21 4.9 Storage conditions.21 4.10 Safety.21 5 Quality assessment procedures.22 5.1 Primary stage of manufacture.22 5.2 Structurally similar components.22 5.3 Qualification Approval procedures.22 5.4 Quality conformance inspection.24 5.5 Certified records of released lots.26 5.6 Delayed deliveries.26 5.7 Delivery release before completion of group B tests.26 5.8 Alternative test methods.26 5.9 Unchecked parameters.26
Bibliography.27
Figure 1 – Standardization structure.19
Table 1 – Example of a typical adaptor classification.10 Table 2 – Three-level specification structure.13 Table 3 – Standards interlink matrix.19
61274-1 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ___________
ADAPTORS FOR FIBRE OPTIC CONNECTORS –
Part 1: Generic specification
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61274-1 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This second edition cancels and replaces the first edition published in 1994, and constitutes a technical revision. The specific technical changes from the previous edition include the updating of the classification, specification system and standardization system. The text of this standard is based on the following documents: FDIS Report on voting 86B/2486/FDIS 86B/2524/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.
– 4 – 61274-1 © IEC:2007 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The QC number that appears on the front cover of this publication is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). IEC 61274 consists of the following parts, under the general title Adaptors for fibre optic connectors: Part 1: Generic specification Part 1-1:
Blank detail specification The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be
• reconfirmed; • withdrawn; • replaced by a revised edition, or • amended.
61274-1 © IEC:2007 – 5 –
INTRODUCTION This part of IEC 61274 is divided into five clauses.
Clauses 1, 2 and 3 contain general information pertaining to this generic specification. Clause 4 is entitled "Requirements" and contains all the requirements to be met by adaptors covered by this standard. This includes requirements for classification, the IEC specification system, documentation, materials, workmanship, quality, performance, identification and packaging. NOTE Clauses 1 to 4 are applicable generally and refer to all adaptor standards, while Clause 5 relates to IEC qualification alone. Clause 5 is entitled "Quality assessment procedures" and contains all of the procedures which must be followed for proper quality assessment of products covered by this standard.
– 6 – 61274-1 © IEC:2007 ADAPTORS FOR FIBRE OPTIC CONNECTORS –
Part 1: Generic specification
1 Scope This part of IEC 61274 applies to fibre optic adaptors for all types, sizes and structures of optical fibre connectors. It includes: – adaptor requirements; – quality assessment procedures. This standard does not cover test and measurement procedures, which are described in IEC 61300-1, IEC 61300-2 and IEC 61300-3. 2 Normative references 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. References made to a specific clause or subclause of a standard include all subclauses of the reference unless otherwise specified. IECQ 001002-2:1998 , IEC Quality Assessment System for Electronic Components (IECQ) – Rules of procedure – Part 2: Documentation IECQ 001002-3:2005 , IEC Quality Assessment System for Electronic Components (IECQ) – Rules of procedure – Part 3: Approval procedures IEC 60027 (all parts), Letter symbols to be used in electrical technology IEC 60050-731, International Electrotechnical Vocabulary (IEV) – Chapter 731: Optical fibre communication
IEC 60410, Sampling plans and procedures for inspection by attributes IEC 60617, Graphical symbols for diagrams IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method – Apparatus, confirmatory test arrangement and guidance IEC 60825-1, Safety of laser products – Part 1: Equipment classification, requirements and user’s guide IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic test and measurement procedures IEC 61753 (all parts), Fibre optic interconnecting devices and passive components performance standard IEC 61753-1: Fibre optic interconnecting devices and passive components – Part 1: General and guidance for performance standards IEC 61754 (all parts), Fibre optic connector interfaces IEC 61755 (all parts), Fibre optic connector optical interfaces
61274-1 © IEC:2007 – 7 –
IEC 61930, Fibre optic graphic symbology IEC 61931, Fibre optic – Terminology ISO 129, Technical drawings – Indication of dimensions and tolerances – Part 1: General principles ISO 286-1, ISO system of limits and fits – Part 1: Bases of tolerances, deviations and fits ISO 1101, Geometrical Product Specifications (GPS) – Geometrical tolerancing – Tolerances of form, orientation, location and run-out ISO 8601, Data elements and interchange formats – Information interchange – Representation of dates and times 3 Terms and definitions For the purposes of this part of IEC 61274, the definitions contained in IEC 60050(731) and IEC 61931, as well as the following definitions, apply.
3.1
adaptor
a component in which two or more ferrules are aligned 3.2
alignment pins cylindrical rods used for alignment in some types of connectors. Typically they are used in pairs and inserted into specific guide holes in the two plugs (usually for multifibre connectors) to provide the alignment 3.3
APC (optical) connector connector with angled convex end-face ferrule capable of making an angled physical contact between the fibres 3.4
butting optical coupling coupling in which the optical ports are in contact with each other 3.5
expanded beam optical coupling coupling in which the optical ports use lens technology 3.6
ferrule precise part of the plug, usually aligned in the sleeve of an adaptor. It confines the end(s) of single or multiple optical fibres
– 8 – 61274-1 © IEC:2007 3.7
fully intermateable connector set connector sets from different sources are considered fully intermateable when connector components from one source will mate with complementary components from other sources without mechanical damage and with optical properties maintained within specified limits 3.8
interchangeable connector set connector sets are considered to be interchangeable when they share common installation geometry and have the same functional performance 3.9
mating face dimension dimension of the features which determine the mating fit between components of an optical connector set 3.10
mechanical intermateable connector set connector sets from different sources are considered mechanically intermateable when connector components from one source will mate with complementary components from other sources without mechanical damage but without regard to optical properties 3.11
mechanical reference plane (datum plane) the plane of a plug or adaptor which is perpendicular to the fibre axis and is located on a physical feature of the component. It is the datum plane from which all features of the component are measured in the direction of the fibre axis NOTE The mechanical reference planes of the plug and the adaptor should coincide when the two components are properly mated. Accordingly, each should be located on the feature that fixes or establishes the relative position of the two components when they are properly mated. 3.12
non-butting optical coupling coupling in which the ports are not in contact with each other 3.13
optical datum target theoretical datum point on a connector interface where the optical fibre core centre should be positioned by the plug or by the adaptor receptacle 3.14
optical fibre connector component normally attached to an optical cable or piece of apparatus, for the purpose of providing frequent optical interconnection/disconnection of optical fibres or cables. This usually consists of two plugs mated together in an adaptor 3.15
optical fibre connector set complete assembly of components (plug-adaptor-plug) required to provide demountable coupling between two or more optical fibre cables 3.16
optical fibre connector set kit series of components necessary to make a complete connector set
61274-1 © IEC:2007 – 9 –
3.17
PC (optical) connector connector with convex end-face ferrule capable of making a physical contact between the fibres 3.18
plug male-type part of a connector 3.19
plug-adaptor-plug configuration configuration in which two plugs mate through an adaptor. The mechanical coupling takes place between the plugs and the adaptor 3.20
plug-receptacle configuration configuration in which a plug mates in a receptacle 3.21
receptacle structure for interfacing a plug with an active component. Typically it is formed by a semi-adaptor and a structure containing and aligning the active component 3.22
reference connector component tighter toleranced or selected connector component (e.g. plug, adaptor, etc.) which is used for measuring purposes NOTE Test and measurement methods may refer to it. The characteristics or the selection procedure are given in the relevant specification. 3.23
sleeve precision part of the adaptor used to mechanically align two ferrules 3.24
small form factor connector an optical fibre connector with a ferrule with an outside diameter of less than 2,0 mm or a connector designed to accommodate two or more optical fibres with at least the same mounting density as the RJ-45 connector. SFF connectors have a smaller cross-sectional area, about one-half that of traditional connectors 3.25
socket
the female part of a two part connector 4 Requirements The requirements for adaptors covered by this generic specification are specified in this clause and in the detail specification. 4.1 Classification Fibre optic adaptors are classified, either totally or in part, according to the following categories (see Table 1): – type; – style;
– 10 – 61274-1 © IEC:2007 – interface standard; – standardization system; – variant; – assessment level; – normative reference extensions. See Table 1 for an example of a complete adaptor set classification. 4.1.1 Type Adaptor set types shall be defined by four elements: the type name, the configuration, the coupling mechanism and the mating face dimensions. Examples of type names: – type SC; – type LC. Examples of configurations: – plug-adaptor-plug configuration; – plug-receptacle configuration. Examples of coupling mechanisms: – screw thread; – bayonet; – push-pull.
Table 1 – Example of a typical adaptor classification Type –
Name: type SC – Configuration: plug-adaptor-plug – Coupling: push -pull – Mating face dimensions:
plug: see Figure 2 a adaptor: see Figure 4 a Style – Physical contact (PC) – Alignment: resilient bushing Variants – Two adaptor variants: • non-mountable (in-line) • four-hole flange mount a Indicates figures in a hypothetical detail specification.
4.1.2 Style The adaptor style shall be defined by two elements: the optical coupling technology and the alignment technology. Examples of optical coupling technologies: – non-butting; – physical contact (PC) or angled physical contact (APC); – expanded beam.
61274-1 © IEC:2007 – 11 –
Examples of alignment technologies: – clearance fit alignment; – resilient bushing alignment; – resilient tip alignment; – spherical alignment; – solid bore alignment sleeve; – resilient alignment sleeve; – V-groove alignment; – guide pin alignment.
4.1.3 Interface standard The adaptor interface standard defines the dimensions and the physical features essential for mating and unmating a fibre optic connector with other connectors or components conforming to the same standard interface (see 4.3.1). 4.1.4 Variant
The adaptor variant defines the variety of structurally similar components (see 5.2). Examples of feature variables which create variants: – mounting scheme; – coupling nut design (hexagonal, knurled, etc.).
4.1.5 Assessment level Assessment level defines the inspection levels and the acceptable quality level (AQL) of groups A and B, and the periodicity of inspection of groups C and D. Detail specifications shall specify one or more assessment levels, each of which shall be designated by a capital letter. The following are preferred levels. • Assessment level A – group A inspection:
inspection level 11, AQL = 4 % – group B inspection:
inspection level 11, AQL = 4 % – group C inspection:
24-month periods – group D inspection:
48-month periods • Assessment level B – group A inspection: inspection level 11, AQL = 1 % – group B inspection: inspection level 11, AQL = 1 % – group C inspection: 18-month periods – group D inspection: 36-month periods • Assessment level C – group A inspection: inspection level 11, AQL = 0,4 % – group B inspection: inspection level 11, AQL = 0,4 % – group C inspection: 12-month periods – group D inspection: 24-month periods
– 12 – 61274-1 © IEC:2007 4.1.6 Normative reference extensions Normative reference extensions are used to identify integration of independent standard specifications or other reference documents into blank detail specifications. Unless a specified exception is noted, additional requirements imposed by an extension are mandatory. Usage is primarily intended to merge associated components to form hybrid devices, or can involve integrated functional application requirements that are dependent on technical expertise other than fibre optics. Published reference documents produced by ITU consistent with the scope statements of the relevant IEC specification series may be used as extensions. Published documents produced by other regional standardization bodies such as TIA, ETSI, JIS, etc, may be referenced in an informative annex attached to the generic specification. In the event of conflicting requirements, precedence shall be given, in descending order, as follows: generic over mandatory extension, over blank detail, over detail, over application specific extension. Examples of optical adaptor C extensions include: – using IEC 61754-2 and IEC 61754-4 to partially define a future specification within the IEC 60874 series for a duplex type “SC/BFOC/2,5” hybrid connector adaptor; – using IEC 61754-13 to partially define a future specification within the IEC 60874 series for an integrated type “FC” preset attenuated optical adaptor; Other examples of requirements in normative extensions:
– some commercial or residential building applications may require direct reference to specific safety codes and regulations, or incorporate other specific material flammability or toxicity requirements for specialised locations; – specialised field tooling may require an extension to implement specific ocular safety, electrical shock, or burn hazard avoidance requirements, or require isolation procedures to prevent potential ignition of combustible gases.
4.2 Documentation 4.2.1 Symbols Graphical and letter symbols shall, whenever possible, be taken from IEC 60027, IEC 60617 and IEC 61930. 4.2.2 Specification system This specification is part of a three-level IEC specification system. Subsidiary specifications shall consist of blank detail specifications and detail specifications. This system is shown in Table 2.
61274-1 © IEC:2007 – 13 –
Table 2 – Three-level specification structure Specification level Examples of information to be included Applicable to
– Assessment system rules
– Inspection rules
– Optical measurement methods
– Environmental test methods
– Sampling plans
– Identification rule
Basic – Marking standards
– Interface dimensions Two or more component families or subfamilies
– Dimensional standards
– Terminology
– Symbol standards
– Preferred number series
– SI units
– Specific terminology
– Specific symbols
– Specific units
– Preferred values
Generic – Marking
Component family
– Quality assessment procedures
– Selection test
– Qualification approval procedures
–
...
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