【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-LandMobileService-Radioequipmentusingconstantornon-constantenvelopemodulationoperatinginachannelbandwidthof25kHz,50kHz,100kHzor150kHz-HarmonizedENcoveringessent
【原文标准名称】:电磁兼容性和射频频谱管理(ERM).地面移动业务.在25kHz、50kHz、100kHz或150kHz的频道带宽中运行的使用恒定或非恒定包络调制的无线电设备.包括R&TTE指令3.2条款中基本要求的协调的EN标准(英文版本EN302561V1.2.1(2009-12)核准本作为德国标准)
【标准号】:EN302561-.2.1
【标准状态】:现行
【国别】:
【发布日期】:2010-04
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:频带宽度;通信技术;电气工程;电磁兼容性;EMC;外层;频率范围;移动无线电通信系统;功率等级;无线电工程;无线电设备;无线电装置;评定;规范(验收);通信;无线通信业务
【英文主题词】:Bandwidths;Communicationtechnology;Electricalengineering;Electromagneticcompatibility;EMC;Envelopes;Frequencyranges;Mobileradiosystems;Powerlevels;Radioengineering;Radioequipment;Radiosystems;Ratings;Specification(approval);Telecommunication;Telecommunications;Wirelesscommunicationservices
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_060_20
【页数】:2P.;A4
【正文语种】:英语


Product Code:SAE J2178/4
Title:Class B Data Communication Network Messages - Message Definitions for Three Byte Headers (STABILIZED Apr 2011)
Issuing Committee:Vehicle Architecture For Data Communications Standards
Scope:This SAE Recommended Practice defines the information contained in the header and data fields of non-diagnostic messages for automotive serial communications based on SAE J1850 Class B networks. This document describes and specifies the header fields, data fields, field sizes, scaling, representations, and data positions used within messages.The general structure of a SAE J1850 message frame without in-frame response is shown in Figure 1. The structure of a SAE J1850 message with in-frame response is shown in Figure 2. Figures 1 and 2 also show the scope of frame fields defined by this document for non-diagnostic messages. Refer to SAE J1979 for specifications of emissions related diagnostic message header and data fields. Refer to SAE J2190 for the definition of other diagnostic data fields. The description of the network interface hardware, basic protocol definition, the electrical specifications, and the CRC byte are given in SAE J1850.SAE J1850 defines two and only two formats of message headers. They are the Single Byte header format and the Consolidated header format. The Consolidated header format has two forms, a Single Byte form and a three byte form. This document covers all of these formats and forms to identify the contents of messages which could be sent on a SAE J1850 network.This document consists of four parts, each published separately.