标准摘要
[中文适用范围]: IEC 62056 的这一部分指定了电能计量配套规范 (COSEM) 面向异步数据通信的三层连接配置文件中的物理层服务和协议。该文件没有指定物理层信号和机械方面。本地的、特定于实施的问题也没有具体说明。附件 A 给出了如何使用智能 Hayes 调制解调器通过公共交换电话网络 (PSTN) 使用该物理层进行数据交换的示例。 IEC 62056-21 中规定了使用光学端口或电流环路物理接口进行直接本地数据交换的物理层的使用。附件 B 解释了数据模型和协议在电表数据交换中的作用。 [外文原描述]: IEC 62056-42:2002 specifies the physical layer services and protocols within the Companion Specification for Energy Metering (COSEM) three-layer connection oriented profile for asynchronous data communication. In annex A, an example of how this physical layer can be used for data exchange through the Public Switched Telephone Network (PSTN) using intelligent Hayes modems is given. Annex B gives an explanation of the role of data models and protocols in electricity meter data exchange. This bilingual version (2013-05) corresponds to the monolingual English version, published in 2002-02.
英文名称Electricity metering - Data exchange for meter reading, tariff and load control - Part 42: Physical layer services and procedures for connection-oriented asynchronous data exchange