ISO INTERNATIONAL STANDARD 11519-1 First edition 1994-06-15 Road vehicles Low-speed serial data communication - Part 1: General and definitions Vehicules routiers -Communication en série de donnees a basse vitesse Partie1:Généralitésetdéfinitions ISo Referencenumber ISO11519-1:1994(E) ISO 11519-1:1994(E) Contents Page 1 Scope 1 2 Normative reference 1 3 Definitions 1 4 Decompositionof layers 4 ISO 1994 All rights reserved. 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 per- mission in writing from the publisher. International Organization forStandardization Case Postale 56:CH-1211Geneve20:Switzerland Printed in Switzerland Coovriaht international Oraanization for Standardization ISO 11519-1:1994(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 established has the right to be and 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International avote International Standard IsO11519-1was prepared by Technical Committee ISO/TC 22, Road vehicles, Sub-Committee SC 3,Electrical and electronic vehicles -Low-speed serial data communication: Part 1: General and definitions -Part2:Low-speedcontrollerareanetwork(CAN) - Part 3: Vehicle area network VAN) Part 4: Class Bdata communication network interface (J1850) ii Coovriaht Intemational Oraanization for Standardization