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 EN 62056-7-5:2016— 51 стр.
International Electrotechnical Vocabulary - Electrical and electronic measurements and measuring instruments - Part 311: General terms relating to measurements - Part 312: General terms relating to electrical measurements - Part 313: Types of electrical measuring instruments - Part 314: Specific terms according to the type of instrument— 257 стр.
Electricity metering data exchange - THE DLMS/COSEM SUITE - Part 7-5: Communication profiles for local data transmission (IEC 13/1581/CD:2014), Text in English