ISO INTERNATIONAL STANDARD 22672 Third edition 2021-06 Space data and information transfer systems Space link extension (SLE) Forward space packet service specification Systemes de transfert des informations et données spatiales- Extension de liaisons spatiales (SLE) -Spécification d'envoi de donnéesspatialesparpaquets Reference number ISO 22672:2021(E) ISO ISO2021 IS0 22672:2021(E) COPYRIGHTPROTECTED DOCUMENT @IS02021 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. IsO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved