IEC 62056-21 Ed. 1.0 b:2002
Original price was: $417.00.$208.00Current price is: $208.00.
Electricity metering – Data exchange for meter reading, tariff and load control – Part 21: Direct local data exchange
International Electrotechnical Commission , 05/15/2002
Pages: 139
Describes hardware and protocol specifications for local meter data exchange. In such systems, a hand-held unit (HHU) or a unit with equivalent functions is connected to a tariff device or a group of devices.
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