Electricity metering - Data exchange for meter reading, tariff and load control - Part 46: Data link layer using HDLC protocol (IEC 62056-46:2002); German version EN 62056-46:2002, text in english— 72 стр.
91.140.50 Electricity. Including electric energy meters in buildings, emergency electrical supplies, etc. / Системы электроснабжения. Включая аварийное электроснабжение и т.д.
