ISO INTERNATIONAL STANDARD 17575-2 Firstedition 2016-01-15 Electronic fee collection Application interface definition for autonomous systems Part 2: Communication and connection to the lower layers Perception du telépéage - Définition de I'interface d'application pour les systemes autonomes Partie 2: Communications et connexions aux couches basses Reference number ISO 17575-2:2016(E) SO International Organization for Standardization @ IS0 2016 STANDARDIZATION C15956617 IS0 17575-2:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Intenatinair PrganizationforStandardization nsee-ZHEJIANG IiNSTOFSTANDARDIZAoSQ6-All rights reserved Not for Resale, 2016/3/29 02:53:48 etworking permitted without license from IHS IS0 17575-2:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Terms and definitions 3 Abbreviated terms .3 4 EFC Front End communication architecture ..4 4.1 General 4 4.2 Relationship with the overall EFC architecture .5 5 EFC communication services (functions) .5 5.1 Generalconcept .5 5.2 Initialization phase. 5.2.1 General. .7 5.2.2 Incoming (BEto FEApplication) session request 7 5.2.3 Outgoing (FE Application to BE) session establishment .8 5.3 Point-to-point communication service primitives .8 5.3.1 General .8 5.3.2 Unstructured messages (ADUs) .8 5.3.3 Structured messages (ADUs) .8 5.4 Session end. .8 5.5 Session failure .9 5.6 Security considerations .9 5.7 Media selection options .9 6 The use of a communication stack .9 6.1 General .9 6.2 Requirements for an underlying communication technology 6.3 Mobileterminatedcalls .10 Annex A (normative) Abstract API definition ..11 Annex B (normative) Protocol implementation conformance statement (Pics) proforma ..17 Annex C (informative) API requirements .22 Annex D (informative) Examples of definitions for appropriate languages ..23 Annex E (informative) Use of this part of IS0 17575 for the EETS .26 Bibliography .28 iii vided by IHS under I thout license from IHS