IEC 62026-2 Ed. 2.1 b:2019

IEC 62026-2 Ed. 2.1 b:2019 Low-voltage switchgear and controlgear - Controller-device interfaces (CDIs) - Part 2: Actuator sensor interface (AS-i) CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 07/10/2019

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IEC 62026-2:2019 specifies a method for communication between a single control device and switching elements, and establishes a system for the interoperability of components with the specified communication interfaces. The complete system is called "Actuator Sensor interface (AS-i)".