Electricity metering data exchange - The DLMS/COSEM suite -- Part 4-7: DLMS/COSEM transport layer for IP networks (IEC 62056-4-7:2015) (english version)
Electricity metering data exchange - The DLMS/COSEM suite -- Part 7-5: Local data transmission profiles for Local Networks (LN) (IEC 62056-7-5:2016) (english version)
Application integration at electric utilities - System interfaces for distribution management -- Part 6: Interfaces for maintenance and construction (IEC 61968-6:2015) (english version)