IEC EC61753-031-3 Edition 2.02014-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components - Performance standard- Part 031-3: Non-connectorized single-mode 1xN and 2xN non-wavelength- selective branching devices for Category U-Uncontrolled environment Dispositifsd'interconnexionetcomposants passifs afibres optiques-Norme de performance- Partie 031-3:Dispositifs de couplage independants de la longueur d'onde 1xN et 2xN en unimodal, non-connectorisés, pour categorie U - Environnementnoncontrole IEC 61753-031-3:2014-12(en-fr) THIS PUBLICATIONIS COPYRIGHT PROTECTED Copyright@2014 IEC,Geneva, Switzerland or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Committee for further information. Droits de reproduction reserves. Sauf indication contraire, aucune partie de cette publication ne peut étre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord écrit de IIEc ou du Comite national de IIEC du pays du demandeur. Si vous avez des questions sur le copyright de I'iEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnees ci-apres ou contactez le Comite national de l'lEC de votre pays de residence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembe Fax: +41 22 919 03 00 CH-1211 Geneva 20 [email protected] Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. AboutIEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published IEc Catalogue -webstore.iec.ch/catalogue Electropedia-www.electropedia.org Thestand-aloneapplicationforconsulting theentire The world's leading online dictionary of electronic and bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in Technical Specifications, Technical Reports andother English and French, with equivalent terms in 15 additional documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical iPad. Vocabulary (IEV) online. IEC publications search -www.iec.ch/searchpub IEc Glossary - std.iec.ch/glossary The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and varietyof criteria (reference number, text, technical French extracted from the Terms and Definitions clause of committee...). It also gives information on projects, replaced iEC publications issued since 2002. Some entries have been and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEc Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IEc Customer Service Centre -webstore.iec.ch/csc details all new publications released. Available online and If you wish to give us your feedback on this publication or also once a month by email. need further assistance, please contact the Customer Service Centre: [email protected]. A propos de IIEC La Commission Electrotechnique Internationale (IEC) est la premiere organisation mondiale qui elabore et publie des Normes internationales pour tout ce qui a trait a 'électricite,a i'electronique et aux technologies apparentees. Apropos des publications IEc Le contenu technique des publications IEC est cons