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CTA Stabilizes Standard on MCI for Thermostat Message Set
Published on March 2026
CTA recently stabilized the standard Modular Communications Interface for Thermostat Message Set, ANSI/CTA 2045.3 S-2026, which is a specification that is an extension of the ANSI/CTA-2045 Modular Communications Interface (MCI) for Energy Management Standard.
For more information and to access the standard, visit Modular Communications Interface for Thermostat Message Set.
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