ISO/IEC INTERNATIONAL STANDARD 14443-2 Fourth edition 2020-07 Cards and security devices for personal identification - Contactless proximity objects - Part 2: Radio frequency power and signal interface Cartes et dispositifs desecurité pour I'identificationpersonnelle- Objetssanscontactdeproximité Partie 2:Interface radiofrequence etdes signaux de communication Reference number IEC IS0/IEC14443-2:2020(E) ISO IS0/IEC2020 IS0/IEC14443-2:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may on the internet or an intranet, without prior written permission. Permission can be requested from either Iso at the address below orIso's memberbody in the country ofthe requester. ISO copyright office CP 40i.Ch.de Blandonnet8 CH-1214 Vernier, Geneva Phone:+4122749 0111 Email: copyright@iso.org Website:www.iso.org Published in Switzerland ii @IS0/IEC2020-All rights reserved