BS ISO18445:2016 BSl Standards Publication Space data and information transfer systems - Space link extension - Application program interface for the forward CLTUservice bsi. BS ISO 18445:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 18445:2016. It supersedes BS ISO 18445:2013 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/68, Space systems and operations. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 93383 7 ICS 49.140 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016. Amendments/Corrigenda issued since publication Date Text affected BS ISO 18445:2016 INTERNATIONAL ISO STANDARD 18445 Second edition 2016-11-15 Space data and information transfer systems Space link extension - Application program interface for the forward CLTU service Systemes de transfert des informations et donnees spatiales - Extension de liaisons spatiales - Interface du programme d'application pour le service de I'unite de transmission pour la liaison d'envoi de telécommande (CLTU) Reference number IS0 18445:2016(E) [so @ IS0 2016 BS ISO 18445:2016 ISO 18445:2016(E) COPYRIGHTPROTECTED DOCUMENT @ ISO 2016 All rights reserved. Unless otherwise specified, 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 on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 [email protected] Web www.iso.org Published in Switzerland @ ISO 2016 - All rights reserved BS ISO 18445:2016 ISO 18445:2016(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with isO, also take part in the work. iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the IsO/lEC Directives, Part 1. In particular the different approval criteria needed for the different types of IsO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2.www.iso.org/directives Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights identified during the development of the document will be in the Introduction and/or on the isO list of patent declarations received. www.iso.org/patents Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceof usersanddoesnot constitute an endorsement. For an explanation on the meaning of isO specific terms and expressions related to conformity assessment, aswellasinformationaboutISO'sadherencetotheWTOprinciplesintheTechnicalBarrierstoTrade(TBT) see the following URL: Foreword - Supplementary information 916.1-M-2, September 2015) and was adopted (without modifications except those stated in clause 2 of this International Standard) by Technical Committee IsO/TC 20, Ai