IEC IEC61280-4-2 Edition 3.02024-05 REDLINE VERSION NTERNATIONAL STANDARD colour inside Fibre- optic communication subsystem test procedures : Part 4-2: Installed-cable cabling plant - Single-mode attenuation and optical returnlossmeasurements IEC 61280-4-2:2024-05 RLV(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2024 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 yourlocal IECmemberNational Committeeforfurtherinformation. IEC Secretariat Tel.:+41229190211 3, rue de Varembé
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[email protected]. IEC IEC 61280-4-2 Edition 3.0 2024-05 REDLINE VERSION INTERNATIONAL STANDARD colour inside Fibre- optic communication subsystem test procedures - Part 4-2: Installed-cable cabling plant - Single-mode attenuation and optical returnloss measurements INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS33.100.01 ISBN 978-2-8322-8892-4 Warning! Make sure that you obtained this publication from an authorized distributor. ? Registered trademark of the International Electrotechnical Commission