ISO/IEC INTERNATIONAL STANDARD 15693-2 Third edition 2019-04 Cards and security devices for personal identification - Contactless vicinity objects Part 2: Air interface and initialization Cartes et dispositifs de sécurite pour I'identification personnelle- Objets sans contact de voisinage Partie 2: Interface et initialisation dans I'air Reference number IEC ISO/IEC 15693-2:2019(E) @IS0/IEC2019 IS0/IEC 15693-2:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0/IEC 2019 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 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0/IEC 2019 - All rights reserved IS0/IEC 15693-2:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms ..2 4.1 Abbreviated terms. .2 4.2 Symbols .2 5 Initial dialogue for vicinity cards .2 6 Power transfer .3 6.1 General. 3 6.2 Frequency.. .3 6.3 Operating field. .3 7 Communications signal interface VCD to VICC .3 7.1 General. .3 7.2 Modulation .3 7.3 Data rate and data coding. .5 7.3.1 General. 5 7.3.2 Data coding mode: 1 out of 256 .6 7.3.3 Data coding mode: 1 out of 4.. 7 7.4 VCD to VICC frames. .8 7.4.1 General .8 7.4.2 SOF to select 1 out of 256 code. 8 7.4.3 SOF to select 1 out of 4 code. ..8 7.4.4 EOF for either data coding mode .9 8 Communications signal interface VICC to VCD 9 8.1 General .9 8.2 Load modulation .9 8.3 Subcarrier. .9 8.4 Data rates. 9 8.4.1 General. .9 8.4.2 Low and high data rates .10 8.4.3 Fast response data rates .10 8.5 Bit representation and coding. .10 8.5.1 General. .10 8.5.2 Bit coding when using one subcarrier .10 8.5.3 Bit coding when using two subcarriers. .11 8.6 VICC to VCD frames. .12 8.6.1 General. .12 8.6.2 SOF when using one subcarrier .12 8.6.3 SOF when using two subcarriers ..13 8.6.4 EOF when using one subcarrier.. .13 8.6.5 EOF when using two subcarriers ..13 Annex A (informative) Standards compatibility. ..15 Annex B (normative) Bit coding and frames for a fast response data ..16 Bibliography ..21 @ IS0/IEC 2019 - All rights reserved iii