PD IEC TR 62056-41:2002 Electricity metering - Data exchange for meter reading, tariff and load control - Data exchange using wide area networks - Public switched telephone network (PSTN) with LINK+ protocol
2002PD IEC TR 62056-41:2002 Electricity metering - Data exchange for meter reading, tariff and load control - Data exchange using wide area networks - Public switched telephone network (PSTN) with LINK+ protocol
2002PD IEC TR 62056-41:1998 Electricity metering. Data exchange for meter reading, tariff and load control. Data exchange using wide area networks. Public switched telephone network (PSTN) with LINK+ protocol