GB/T 40786.2-2021 English PDF

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GB/T 40786.2-2021: Information technology - Telecommunications and information exchange between systems - Low voltage power line communication - Part 2: Data link layer specification
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40786.2-2021	2569	Add to Cart	13 days	Information technology - Telecommunications and information exchange between systems - Low voltage power line communication - Part 2: Data link layer specification	Valid

Similar standards

GB/T 37685   GB/T 37684   GB/T 38322   GB/T 40778.3   GB/T 40778.1   GB/T 40786.1   

Basic data

Standard ID: GB/T 40786.2-2021 (GB/T40786.2-2021)
Description (Translated English): Information technology - Telecommunications and information exchange between systems - Low voltage power line communication - Part 2: Data link layer specification
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L79
Word Count Estimation: 142,186
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40786.2-2021: Information technology - Telecommunications and information exchange between systems - Low voltage power line communication - Part 2: Data link layer specification

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Information technology - Telecommunications and information exchange between systems - Low voltage power line communication - Part 2.Data link layer specification ICS 35.110 CCSL79 National Standards of People's Republic of China Remote communication and information exchange between information technology systems Low-voltage power line communication Part 2.Data Link Layer Specification Released on 2021-10-11 2022-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 3 5 General description 4 5.1 Summary 4 5.2 Network Topology 4 5.3 Protocol stack structure 5 5.4 Addressing 6 5.5 QoS 6 5.6 CCo Level 7 5.7 Endian 7 5.8 Managing message time 7 5.9 Other constraints 7 6 Data link layer 7 6.1 Frame format 7 6.2 DLL function 22 6.3 DLL layer management messages 75 7 Security 131 7.1 Encryption 131 7.2 Authentication and key management 131 7.3 SC Maintenance 133 Appendix A (Normative) Priority Mapping 135 Appendix B (normative) Flow classification requirements 136 References 137

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is the second part of GB/T 40786 "Telecommunications and Information Exchange Between Information Technology Systems, Low-Voltage Power Line Communication". GB/T 40786 has released the following parts. ---Part 1.Physical layer specification; ---Part 2.Data link layer specification. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Information Technology Standardization Technical Committee (SAC/TC28). Drafting organizations of this document. China Institute of Electronic Technology Standardization, Shenzhen Hisilicon Semiconductor Co., Ltd., Shenzhen Zhongxing Microelectronics Technology Technology Co., Ltd., Beijing Zhuoyue Communication Electronics Co., Ltd., Tsinghua University, Qingdao Neusoft Carrier Technology Co., Ltd., Shenzhen Lihe Microelectronics Co., Ltd., Wasion Information Technology Co., Ltd., Anhui Denuo Technology Co., Ltd., Beijing Quandian Intelligent Technology Co., Ltd. Division, Shenzhen Guodian Technology Communication Co., Ltd., China Electric Power Research Institute Co., Ltd. The main drafters of this document. Jiang Tong, Dong Chen, Kou Hong, Zhuo Lan, Sun Wei, Liu Pei, Cheng Chen, Xu Wenxue, Yang Fang, Dong Haitao, Xu Pengcheng, Liu Kun, Zhu Yong, Li Xiao, Peng Bo, Liu Qingyang, Liu Xuan, Zhang Hailong.

Introduction

GB/T 40786 "Telecommunications and Information Exchanges Between Information Technology Systems, Low-Voltage Power Line Communication" draws on international mainstream standards Framing and data transmission methods and protocol architecture, mainly for broadband power line communication network networking, management and maintenance, security mechanisms, neighbor interference agreements The part of adjustment, resource scheduling, etc. is described. This document is intended to be composed of two parts. ---Part 1.Physical layer specification. The purpose is to standardize the physics that is applicable to low-voltage power line communication technology in complex and harsh environments. Layer protocol. ---Part 2.Data link layer specification. The purpose is to standardize broadband low-voltage power line communication network topology, equipment data link layer agreement Protocol stack structure, data link layer frame format and management message format, beacon-based competition and non-competition channel access mechanism, network Low-voltage power line communication such as network access and exit mechanisms, network management and maintenance procedures, routing and topology management protocols, and security mechanisms Technical content. Remote communication and information exchange between information technology systems Low-voltage power line communication Part 2.Data Link Layer Specification

1 Scope

This document specifies a general description of the data link layer of a broadband low-voltage (below 1kV) power line communication network, and the data link layer protocol. Discussion, service and safety. This document applies to data link layer equipment (such as gateway equipment, bridges, terminal equipment, etc.) that use low-voltage power lines as communication media Design, manufacture, use and maintenance of

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 15629.3-2014 Information technology systems telecommunications and information exchange specific requirements for local area networks and metropolitan area networks Part 3.Carrier Sense Multiple Access with Collision Detection (CSMA/CD) access method and physical layer specification GB/T 40786.1-2021 Long-distance communication and information exchange between information technology systems Low-voltage power line communication Part 1.Things Physical specification ISO /IEC /IEEE8802-3.2021 Telecommunications and Information Exchange Between Information Technology Systems Local Area Networks and Metropolitan Area Networks Part 3 Points. Ethernet standard (Informationtechnology-Telecommunicationsandinformationexchangebetweensys- tems-Localandmetropolitanareanetworks-Specificrequirements-Part 3.StandardforEthernet)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Beacon Management messages sent by the central coordinator, agents, and sites that carry network management and maintenance information and are used for specific purposes. 3.2 Beaconperiod The time interval at which the central beacon is periodically sent as determined by the central coordinator. 3.3 Centralcoordinator The role of the master node in the broadband power line communication network, responsible for coordinating and managing the communication of each site, and responsible for completing network control and network maintenance Manage and manage the communication resources on the line, and be responsible for cooperating with neighboring networks on the same line resource. ......

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