LEC IEC61977 Edition 4.02020-04 REDLINEVERSION colour inside Fibre optic interconnecting devices and passive components - Fibre optic fixed filters-Generic specification IEC 61977:2020-04 RLV(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2020 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form 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. IEC Central Office Tel.:+4122919 02 11 3, rue de Varembé [email protected] CH-1211Geneva 20 www.iec.ch Switzerland About the IEC International Standards for all electrical,electronic and related technologies. AboutIECpublications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition,a corrigendumoranamendmentmighthavebeenpublished. IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology. containing more than 22 000 terminological entries in English varietyofcriteria(reference number,text, technical committee,...). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages. Also known as the International Electrotechnical Vocabulary and withdrawn publications. (IEV) online. IEc Just Published - webstore.iec.ch/justpublished IEC Glossary - std.iec.ch/glossary Stay up to date on all new IEC publications. Just Published 67 000 electrotechnical terminology entries in English and details all new publications released. Available online and once a month by email. French extracted from the Terms and Definitions clause of iEC publications issued since 2002. Some entries have been IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and If you wish to give us your feedback on this publication or CISPR. need further assistance, please contact the Customer Service Centre: [email protected]. IEC IEC 61977 Edition 4.02020-04 REDLINEVERSION colour inside Fibre optic interconnecting devices and passive components - Fibre optic fixed filters - Generic specification INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS33.180.20 ISBN 978-2-8322-8186-4 Warning! Make sure that you obtained this publication from an authorized distributor.