Describes the electrical characteristics of two types of contactless interface between a proximity card and a proximity coupling device. In addition, includes both power and bi-directional communication.RECONFIRMATION NOTICETechnical Committee IT-012 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 25 November 2015.The following are represented on Technical Committee IT-012:Australian Association of Permanent Building SocietiesAustralian Bankers AssociationAustralian Industry GroupAustralian Information Industry AssociationAustralian Payments Clearing AssociationCertification Interests (Australia)Department of Defence (Australian Government)Department of Finance (Australian Government)Engineers AustraliaNew Zealand Computer SocietyOffice of the Commissioner for Privacy