Standard No.:	GB/T 19897.2-2005
English Name:	Automatic meter reading system lower layer communication protocol—Part 2:Use of area networks on twisted pair with carrier signalling
Chinese Name:	自动抄表系统低层通信协议 第2部分：基于双绞线载波信号的局域网使用
Chinese Classification:	N22    Electric energy measurement and load control system
Professional Classification:	GB    National Standard
ICS Classification:	33.040.40 33.040.40    Data communication networks 33.040.40
Issued by:	AQSIQ
Issued on:	2005-09-09
Implemented on:	2006-4-1
Status:	superseded
Superseded by:	GB/T 17215.631-2018 Electricity metering data exchange—The DLMS/COSEM suite—Part 31:Use of local area networks on twisted pair with carrier signalling
Superseded on:	2019-7-1
Language:	English
File Format:	PDF
Word Count:	26000 words
Price(USD):	740.00
Delivery:	via email in 1~3 business day

GB/T 19897的本部分阐述了用于对有源或无源的站点进行本地总线数据交换的两种新的结构。其中，对于无源站点来说，将由总线来提供用于数据交换的电源。第一种结构用来完成于远程传输服务的基本协议IEC 61142;第二种结构则用来解决如何使用同一物理介质和同一物理层进行DLMS服务操作。这种完全的兼容性保证在同一总线的设备使用IEC 61142的本部分的可能性。