Recently, CTA published a new document for the Implementation Guide for the Modular Communications Interface for Energy Management (CTA-2045.4). CTA-2045.4 complements ANSI/CTA-2045-B. This extension provides requirements that are additive and complementary to the original protocol. It describes enhancements and clarifies the appliance communication and control capabilities.

For more information and to access the standard, visit Modular Communications Interface Implementation Guide.