China 'GB/T 19897.2-2005
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 19897.2-2005
Automatic Meter Reading System Lower Layer Communication Protocol Part 2:Use of area networks on twisted pair with carrier signalling 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
Issued Date:2005-09-09
Implemented Date:2006-04-01
Issued by:
The Standardization Administration of the People's Republic of China