BS EN 62056-42-2002 电量测量.表读数、计费和负载控制的数据交换.定向连接异步数据交换的物理层工作和程序

标准号：BS EN 62056-42-2002
中文标准名称：电量测量.表读数、计费和负载控制的数据交换.定向连接异步数据交换的物理层工作和程序
英文标准名称：Electricity metering - Data exchange for meter reading, tariff and load control - Physical layer services and procedures for connection-oriented asynchronous data exchange
标准类型：N20
发布日期：2002/7/16 12:00:00
实施日期：2002/7/16 12:00:00
中国标准分类号：N20
国际标准分类号：35.100.10;91.140.50
适用范围：This part of IEC 62056 specifies the physical layer services and protocols within theCompanion Specification for Energy Metering (COSEM) three-layer connection orientedprofile for asynchronous data communication. The document does not specify physical layersignals and mechanical aspects. Local, implementation-specific issues are also not specified.In annex A, an example of how this physical layer can be used for data exchange through thePublic Switched Telephone Network (PSTN) using intelligent Hayes modems is given.The use of the physical layer for the purposes of direct local data exchange using an opticalport or a current loop physical interface is specified in IEC 62056-21.Annex B gives an explanation of the role of data models and protocols in electricity meterdata exchange.