ANSI C12.18

ANSI C12.18

ANSI C12.18 is an ANSI standard that describes a protocol used for two-way communications with an electricity meter, mostly used in North American markets.

The C12.18 standard is written specifically for meter communications via an ANSI Type 2 Optical Port, and specifies lower-level protocol details. ANSI C12.19 specifies the actual data tables.

ANSI C12.21 is an extension of C12.18 written for modem instead of optical communications, so is better suited to automatic meter reading.

See also

* Electricity meter
* IEC 61107: a similar metering protocol used in European meters

External links

* [http://www.nema.org/stds/c12-18.cfm The ANSI C12.18 standard at NEMA]


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