ANSI C12.22 is the American National Standard for Protocol Specification for Interfacing to Data Communication Networks

C12.22 describes a protocol for transporting ANSI C12.19 table data over networks, for the purpose of interoperability among communications modules and meters. This standard uses AES encryption to enable strong, secure communications, including confidentiality and data integrity. It's security model is extensible to support new security mechanisms.

C12.22 defines message services which are components of an Advanced Metering Infrastructure (AMI) for smart grids.

There is also an RFC (RFC 6142) for transporting C12.22 data using TCP and UDP transport over IP networks.

External links

• The ANSI C12.22 standard at NEMA
• RFC 6142