Standard No.:	GB/T 20851.4-2007
English Name:	Electronic toll collection—Dedicated short range communication—Part 4:Equipment application
Chinese Name:	电子收费 专用短程通信 第4部分：设备应用
Chinese Classification:	L65    System equipment interface
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2007-4-25
Implemented on:	2007-5-1
Status:	superseded
Superseded by:	GB/T 20851.4-2007/XG1-2012 Electronic toll collection—Dedicated short range communication—Part 4:Equipment application , includes Amendment 1 GB/T 20851.4-2019 Electronic toll collection—Dedicated short range communication—Part 4:Equipment application
Superseded on:	2012-12-1
Target Language:	English
File Format:	PDF
Word Count:	10000 words
Translation Price(USD):	200.0
Delivery:	via email in 1 business day

1 Scope This part specifies the general principles, technical requirements, data structures, application interfaces and application security of the dedicated short range communication equipment for electronic toll collection (ETC). This part is applicable to the electronic toll collection systems for highways, and may also be used for reference by automatic vehicle identification (AVI), vehicle access management, urban road toll collection, etc. 2 Normative References The following documents contain provisions which, through reference in this part of GB/T 20851, constitute provisions of this part. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies. GB/T 2423 Environmental Testing for Electric and Electronic Products GB 4208 Degrees of Protection Provided by Enclosure (IP Code) GB/T 20135-2006 Intelligent Transportation Systems - Electronic Toll Collection - System Architecture GB/T 20839-2007 Intelligent Transportation Systems - General Terminology GB/T 20851.1-2007 Electronic Toll Collection - Dedicated Short Range Communication - Part 1: Physical Layer GB/T 20851.2-2007 Electronic Toll Collection - Dedicated Short Range Communication - Part 2: Data Link Layer GB/T 20851.3-2007 Electronic Toll Collection - Dedicated Short Range Communication - Part 3: Application Layer JR/T 0025-2005 China Financial Integrated Circuit (IC) Card Specifications ISO/IEC 7816 Identification Cards - Integrated Circuit Cards - Cards with Contacts ISO/IEC 14443 Identification Cards - Contactless Integrated Circuit Cards 3 Terms, Definitions and Abbreviations 3.1 Terms and Definitions For the purposes of this part, the terms and definitions established in GB/T 20135-2006 and GB/T 20839-2007 apply. 3.2 Abbreviations

Foreword i 1 Scope 2 Normative References 3 Terms, Definitions and Abbreviations 4 General Principle of Application 5 General Technical Requirements of Key Equipment 6 OBE Data Structure 7 Interfaces of ETC Application 8 Security of ETC Application Appendix A (Normative) ASN.1 Data Structure of OBE Appendix B (Informative) Examples for Transaction Process of ETC Application