China 'GB/T 17215.631-2018
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
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 电测量数据交换-DLMS/COSEM组件-第31部分:基于双绞线载波信号的局域网使用
Issued Date:2018
Implemented Date:2019-7-1
Issued by:
The Standardization Administration of the People's Republic of China