Fibre optic wavelength switches - Generic specification

Applies to fibre optic wavelength switches, which are: - passive optical devices, without optical amplification or opto-electronic conversion - restricted to the routing of light rather than intentional power division - have two or more ports with optical fibres or connectors. The standard establishes switch requirements and quality assessment procedures.

Lichtwellenleiter - Wellenlängenschalter - Fachgrundspezifikation

Commutateurs de longueur d'onde à fibres optiques - Spécification générique

S'applique aux commutateurs de longueur d'one à fibres optiques, qui sont: - des dispositifs passifs, sans l'amplification optique ni la conversion optoélectronique - réduite à l'acheminement de la lumière plutôt qu'à la division intentionnelle de pusssance - ont au moins deux portes avec des fibres optiques ou des connecteurs. La norme établit les exigences pour les commutateurs et les procédures d'assurance de la qualité.

Fibre optic wavelength switches - Generic specification (IEC 62099:2001)

General Information

Status
Published
Publication Date
31-Aug-2002
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Sep-2002
Due Date
01-Sep-2002
Completion Date
01-Sep-2002

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fibre optic wavelength switches - Generic specification (IEC 62099:2001)Lichtwellenleiter - Wellenlängenschalter - FachgrundspezifikationCommutateurs de longueur d'onde à fibres optiques - Spécification génériqueFibre optic wavelength switches - Generic specification33.180.20Fibre optic interconnecting devicesICS:Ta slovenski standard je istoveten z:EN 62099:2001SIST EN 62099:2002en01-september-2002SIST EN 62099:2002SLOVENSKI
STANDARD



SIST EN 62099:2002



EUROPEAN STANDARDEN 62099NORME EUROPÉENNEEUROPÄISCHE NORMJuly 2001CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 62099:2001 EICS 33.180.20English versionFibre optic wavelength switches –Generic specification(IEC 62099:2001)Commutateurs de longueur d'ondeà fibres optiques –Spécification générique(CEI 62099:2001)Lichtwellenleiter - Wellenlängenschalter -Fachgrundspezifikation(IEC 62099:2001)This European Standard was approved by CENELEC on 2001-06-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 62099:2002



EN 62099:2001- 2 -ForewordThe text of document 86B/1454/FDIS, future edition 1 of IEC 62099, prepared by SC 86B, Fibre opticinterconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to theIEC-CENELEC parallel vote and was approved by CENELEC as EN 62099 on 2001-06-01.The following dates were fixed:–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement(dop)2002-03-01–latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2004-06-01Annexes designated "normative" are part of the body of the standard.In this standard, annex ZA is normative.Annex ZA has been added by CENELEC.__________Endorsement noticeThe text of the International Standard IEC 62099:2001 was approved by CENELEC as a EuropeanStandard without any modification.In the official version, for Bibliography, the following notes have to be added for the standardsindicated:IEC 60068 (series)NOTE: Harmonized as EN 60068 (series) (not modified).IEC 61300 (series)NOTE: Harmonized as EN 61300 (series) (not modified).IEC 61753 (series)NOTE: Harmonized as EN 61753 (series) (not modified).IEC 61754 (series)NOTE: Harmonized as EN 61754 (series) (not modified).IEC 62005 (series)NOTE: Harmonized as EN 62005 (series) (not modified).__________SIST EN 62099:2002



- 3 -EN 62099:2001Annex ZA(normative)Normative references to international publicationswith their corresponding European publicationsThis European Standard incorporates by dated or undated reference, provisions from otherpublications. These normative references are cited at the appropriate places in the text and thepublications are listed hereafter. For dated references, subsequent amendments to or revisions of anyof these publications apply to this European Standard only when incorporated in it by amendment orrevision. For undated references the latest edition of the publication referred to applies (includingamendments).NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevantEN/HD applies.PublicationYearTitleEN/HDYearIEC 60027SeriesLetter symbols to be used in electricaltechnology--IEC 60050-731- 1)International ElectrotechnicalVocabulary (IEV)Chapter 731: Optical fibrecommunication--IEC 60410- 1)Sampling plans and procedures forinspection by attributes--IEC 60617SeriesGraphical symbols for diagramsEN 60617SeriesIEC 60695-2-2- 1)Fire hazard testingPart 2: Test methods - Section 2:Needle-flame testEN 60695-2-21994 2)IEC 60825-1- 1)Safety of laser productsPart 1: Equipment classification,requirements and user's guideEN 60825-1+ corr. FebruaryA11+ corr. July1994 2)199519961997IEC 61748- 3)Manufacturing line approval (QML)for MCM--IEC QC 001001- 1)Basic rules of the IEC QualityAssessment System for ElectronicComponents (IECQ)--IEC QC 001002SeriesIEC Quality Assessment System forElectronic Components (IECQ) - Rulesof Procedure--
1) undated reference.2) valid edition at date of issue.3) to be published.SIST EN 62099:2002



EN 62099:2001- 4 -PublicationYearTitleEN/HDYearIEC Guide 102- 1)Electronic components - Specificationstructures for quality assessment(Qualification approval and capabilityapproval)--ISO 129- 1)Technical drawings - Dimensioning -General principles, definitions, methodsof execution and special indications--ISO 286-1- 1)ISO system of limits and fitsPart 1: Bases of tolerances, deviationsand fitEN 20286-11993 2)ISO 1101- 1)Technical drawings - Geometricaltolerancing - Tolerancing of form,orientation, location and run-out -Generalities, definitions, symbols,indications on drawings--ISO 8601- 1)Data elements and interchange formats- Information interchange -Representation of dates and timesEN 286011992 2)
1) undated reference.2) valid edition at date of issue.SIST EN 62099:2002



NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD62099QC 950000Première éditionFirst edition2001-03Commutateurs de longueur d'ondeà fibres optiques –Spécification génériqueFibre optic wavelength switches –Generic specification Commission Electrotechnique Internationale International Electrotechnical CommissionPour prix, voir catalogue en vigueurFor price, see current catalogue© IEC 2001
Droits de reproduction réservés⎯
Copyright - all rights reservedAucune partie de cette publication ne peut être reproduite niutilisée sous quelque forme que ce soit et par aucun procédé,électronique ou mécanique, y compris la photocopie et lesmicrofilms, sans l'accord écrit de l'éditeur.No part of this publication may be reproduced or utilized inany form or by any means, electronic or mechanical,including photocopying and microfilm, without permission inwriting from the publisher.International Electrotechnical Commission3, rue de Varembé
Geneva, SwitzerlandTelefax: +41 22 919 0300e-mail: inmail@iec.ch IEC web site
http://www.iec.chCODE PRIXPRICE CODEUSIST EN 62099:2002



62099 © IEC:2001– 3 –CONTENTSFOREWORD.7INTRODUCTION.91General.111.1Scope.111.2Normative references.131.3Definitions.152Requirements.232.1Classification.232.1.1Type.232.1.2Style.272.1.3Variant.272.1.4Interface standard.292.1.5Environmental category.292.1.6Assessment level.292.1.7Normative reference extension.312.2Documentation.312.2.1Symbols.312.2.2Specification system.312.2.3Drawings.352.2.4Tests and measurements.352.2.5Test reports.372.2.6Instructions for use.372.3Standardization system.372.3.1Interface standards.372.3.2Performance standards.392.3.3Reliability standards.392.3.4Interlinking.412.4Design and construction.452.4.1Materials.452.4.2Workmanship.452.5Quality.452.6Performance.452.7Identification and marking.452.7.1Variant identification number.452.7.2Component marking.472.7.3Package marking.472.8Packaging.472.9Storage conditions.472.10Safety.47SIST EN 62099:2002



62099 © IEC:2001– 5 –3Quality assessment procedures.493.1Primary stage of manufacture.493.2Structurally similar components.493.3Qualification approval procedures.493.3.1Fixed sample procedure.513.3.2Lot-by-lot and periodic procedures.513.3.3Qualifying specimen.513.3.4Sample size.513.3.5Preparation of specimens.513.3.6Qualification testing.513.3.7Qualification failures.513.3.8Maintenance of qualification approval.533.3.9Qualification report.533.4Quality conformance inspection.533.4.1Lot-by-lot inspection.533.4.2Periodic inspection.553.5Certified records of released lots.553.6Delayed deliveries.573.7Delivery release before completion of group B tests.573.8Alternative test methods.573.9Unchecked parameters.57Bibliography.30Figure 1 – Standards.43Table 1 – The IEC specification structure.33Table 2 – Standards interlink matrix.43Table 3 – Quality assurance options.43SIST EN 62099:2002



62099 © IEC:2001– 7 –INTERNATIONAL ELECTROTECHNICAL COMMISSION____________FIBRE OPTIC WAVELENGTH SWITCHES –GENERIC SPECIFICATIONFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the International Organizationfor Standardization (ISO) in accordance with conditions determined by agreement between the twoorganizations.2)The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4)
In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)
The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6)
Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC 62099 has been prepared by subcommittee 86B: Fibre opticinterconnecting devices and passive components, of IEC technical committee 86: Fibre optics.The text of this standard is based on the following documents:FDISReport on voting86B/1454/FDIS86B/1504/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.The QC number that appears on the front cover of this publication is the specification numberin the IEC Quality Assessment System for Electronic Components (IECQ).The committee has decided that the contents of this publication will remain unchangeduntil 2008. At this date, the publication will bereconfirmed;withdrawn;replaced by a revised edition, oramended.SIST EN 62099:2002



62099 © IEC:2001– 9 –INTRODUCTIONThis standard, which is a generic specification, is divided into three clauses.Clause 1, entitled "General", contains general information which pertains to this genericspecification.Clause 2, entitled "Requirements", contains all of the requirements to be metby switches covered by this standard. Among other requirements, those for classification,the IEC specification system, documentation, materials, workmanship, quality, performance,identification, and packaging are described.Clause 3, entitled "Quality assessment procedures", contains all of the procedures to befollowed for proper quality assessment of products covered by this standard.SIST EN 62099:2002



62099 © IEC:2001– 11 –FIBRE OPTIC WAVELENGTH SWITCHES –GENERIC SPECIFICATION1 General1.1 ScopeThis International Standard applies to fibre optic wavelength switches. The term "fibre opticwavelength switch" can be used to describe a wide range of devices, assemblies and systemsboth active and passive. Therefore, it is necessary to elaborate on the scope and object of thisstandard. This specification is intended to cover those devices and assemblies which have thefollowing attributes.– While the switch actuation means is by necessity active, the optical paths through theswitch are passive. Thus, neither optical amplification nor opto-electronic conversion isencompassed.– The switch function is restricted to the routing of light rather than intentional power divisionplus routing. Thus, signal broadcast functions are not encompassed.– They have two or more ports for the transmission of optical power and have two or morestates in which power may be routed or blocked between these ports.– The ports are optical fibres or optical fibre connectors.Wavelength switching normally involves separation of the individual wavelength streams of lightwhich are re-routed and then recombined. Thus, wavelength switches may involve multipleoptical junctions and multiple-stage switching layouts interior to the switch. However, thespecifications relate to the optical performance from port to port of the overall assembly.System control and monitoring with their related electronics and software are not covered bythis specification. The switch assembly may have optical means to facilitate such functionality(such as optical taps or wavelength monitoring means), but any related degradation in switchperformance should be covered by the overall switch specifications.This specification deals with switches that incorporate passive optical paths, and, therefore, itmay be assumed that the signal performance, other than through attenuation, is independent ofthe signal format. However, particularly in the case of wavelength switching, some technologiesfor switching and for wavelength discrimination may have an influence on the signals beingcarried on the channels. Some factors that must be considered are: spatial crosstalk, crosstalkin the wavelength domain, and polarization effects.This standard establishes uniform requirements for the following points:–fibre optic wavelength switch requirements;– quality assessment procedures.SIST EN 62099:2002



62099 © IEC:2001– 13 –1.2 Normative referencesThe following normative documents contain provisions which, through reference in this text,constitute provisions of this International Standard. For dated references, subsequentamendments to, or revisions of, any of these publications do not apply. However, parties toagreements based on this International Standard are encouraged to investigate the possibilityof applying the most recent editions of the normative documents indicated below. For undatedreferences, the latest edition of the normative document referred to applies. Members of IECand ISO maintain registers of currently valid International Standards.IEC 60027 (all parts), Letter symbols to be used in electrical technologyIEC 60050(731), International Electrotechnical Vocabulary (IEV) – Chapter 731: Optical fibrecommunicationIEC 60410, Sampling plans and procedures for inspection by attributesIEC 60617 (all parts), Graphical symbols for diagramsIEC 60695-2-2, Fire hazard testing – Part 2: Test methods – Section 2: Needle-flame testIEC 60825-1, Safety of laser products – Part 1: Equipment classification, requirements anduser’s guideIEC 61748, Manufacturing line approval (QML) for MCM 1)IEC QC 001001, IEC Quality Assessment System for Electronic Components (IECQ) – BasicRulesIEC QC 001002 (all parts), IEC Quality Assessment System for Electronic Components (IECQ)– Rules of procedureIEC Guide 102, Electronic components – Specification structures for quality assessment(Qualification approval and capability approval)ISO 129, Technical drawings – Dimensioning – General principles, definitions, methods ofexecution and special indicationsISO 286-1, ISO system of limits and fits – Part 1: Bases of tolerances, deviations and fitsISO 1101, Technical drawings – Geometrical tolerancing – Tolerancing of form, orientation,location and run-out – Generalities, definitions, symbols, indications on drawings.ISO 8601, Data elements and interchange formats – Information interchange – Representationof dates and times________1)Tobe published.SIST EN 62099:2002



62099 © IEC:2001– 15 –1.3 DefinitionsFor the purposes of this International Standard, the definitions given in IEC 60050(731) apply,together with the following definitions.1.3.1optical switchpassive component possessing one or more ports which selectively route or block opticalpower in an optical fibre transmission line1.3.2wavelength switchswitch which is designed to operate in two or more defined wavelength bands of operation andwhich can selectively route or block light in one or more of the bands of operation as a functionof the wavelength band1.3.3portoptical fibre or optical fibre connector attached to a passive component for the entry and/or exitof optical power1.3.4switch stateparticular optical configuration of a switch, whereby optical power is transmitted or blockedbetween specific ports in a predetermined manner1.3.5actuation mechanismphysical means (mechanical, electrical, acoustic, optical, etc.) by which a switch is designed tochange between states1.3.6actuation energyinput energy required to place a switch in a specific state1.3.7transfer matrixoptical properties of a fibre optic switch which can be defined in a n×n matrix of coefficients(n is the number of ports)NOTE
The T matrix represents the on-state paths (worst-case transmission), and the T° matrix represents the off-state paths (worst-case isolation). Normally, there is a separate transfer matrix for each defined wavelength band ofoperation.1.3.8transfer coefficientelement tij or t°ij of the transfer matrix. The index i refers to the input ports N, running fromthe numbers 1 to N. The index j refers to the output ports M, running from the number N + 1to N + MNOTE
Each coefficient tij is the worst-case (minimum) fraction of power transferred from port i to port j for anystate with path ij switched on. Each coefficient t°ij is the worst-case (maximum) fraction of power transferred fromport i to port j for any state with path ij switched off.SIST EN 62099:2002



62099 © IEC:2001– 17 –1.3.9logarithmic transfer matrixin general, the logarithmic transfer matrix isaij = –10 log tijwhereaij is the optical power reduction in decibels out of port j with unit power into port i;tij is the transfer matrix coefficient.Similarly, for the off stateaij = –10 log tij1.3.10attenuationelement aij (where i ≠ j) of the logarithmic transfer matrix. It is the reduction in opticalpower between an input and output port of a passive component expressed in decibels. It isdefined asaij = –10 log (Pj/Pi)where Pi is the optical power launched into the i port and Pj is the optical power received fromthe j port. The insertion loss values depend on the state of the switch1.3.11return loss; reflection losselement aij (where i = j) of the logarithmic transfer matrix. It is the fraction of input power that isreturned from the input port of a passive component. It is defined asRLi = –10 log (PRi/Pi)where Pi is the optical power launched into the i port and PRi the optical power received backfrom the i port.The return loss values depend on the state of the switch1.3.12operating wavelength bandnominal wavelength band at which the wavelength switch is designed to operate with thespecified performance1.3.13operating wavelength range; bandpassspecified range of wavelengths from λi min to λi max about a nominal operating wavelength λi,within which the wavelength switch is designed to operate with the specified performance.A wavelength switch normally has more than one operating wavelength range1.3.14connected portstwo ports between which the attenuation is nominally zero in a given state of the switchSIST EN 62099:2002



62099 © IEC:2001– 19 –1.3.15isolated portstwo ports between which the attenuation is nominally infinite in a given state of the switch1.3.16crosstalkratio of the optical power that goes out from a given output port to an optical power that goesout from another output port, nominally isolated from the previous one, when all other ports areterminatedExample: Typical 1 X 2 switchSwitchP1P2PinThe crosstalk when the switch is connected to port 1 is defined as:1212log10PPFC−=where P1 is the optical power that goes out from output port 1 and P2 is the optical power thatgoes out from output port 2 (nominally isolated from port 1).The crosstalk when the switch is connected to port 2 is defined as:2121log10PPFC−=where P2 is the optical power that goes out from the output port 2andP1 is the optical powerthat goes out from the output port 1 (nominally isolated from port 2).1.3.17latching switchswitch that maintains its last state and specified performance level when the actuation energywhich initiated the change is removed1.3.18non-latching switchswitch that reverts to a home state or undefined state when the actuation energy which initiateda change is removedSIST EN 62099:2002



62099 © IEC:2001– 21 –1.3.19switching timeelapsed time it takes the switch to turn path ij on or off from a particular initial state, measuredfrom the time the actuation energy is applied or removedActuation energy supplySteady stateOutput port power90 % of steady state10 % of steady stateTimePowertrtbtfSwitching time: tr,tfBounce time: tbIEC
197/011.3.20bounce timeelapsed time for the insertion loss between two specified ports of a switch to reach and remainwithin 0,5 dB of its steady-state value from the moment when it initially reaches within 0,5 dB ofthe steady-state value1.3.21switching time matrixmatrix of coefficients in which each coefficient Sij is the longest switching time to turn path ij onor off from any initial state1.3.22blockingblocking and various degrees of non-blocking operation functionality are encompassed by thisspecificationNOTE"Blocking" refers to the inability to establish a connection from a free input port to a free output port due tothe existence of some other established connection."Strict-sense non-blocking" refers to a switch matrix in which it is always possible to establish a connection betweenany free input port and any free output port irrespective of previously established connections."Wide-sense non-blocking" refers to a matrix in which it is always possible to establish a desired connectionprovided that some systematic procedure is followed in setting up connections. Some multistage switchingarchitectures fall into this category."Rearrangeably non-blocking" refers to a switch matrix in which any free input port can be connected to any freeoutput port provided that other established connections are unconnected and then reconnected as part of makingthe new connection.SIST EN 62099:2002



62099 © IEC:2001– 23 –2 RequirementsThe requirements for switches covered by this clause are intended to aid in classifying thisdevice.2.1 ClassificationFibre optic wavelength switches shall be classified as follows:–type;–style;–variant;–interface standard (when applicable);–environmental category;–assessment level;–normative reference extensions.An exa
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