This part of IEC 62026 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)”.
This standard describes a method for connecting switching elements, such as low-voltage
switchgear and controlgear, standardized within IEC 60947, and controlling devices. The
method may also be applied for connecting other devices and elements.
Where inputs and outputs I/O are described in this standard, their meaning is regarding the
master, the meaning regarding the application is the opposite.