The main component of the KNX System is the bus line, it acts as a nervous system for the system, It is a green cable that is inserted in addition to the normal power line during a new construction or restoration project.

All of the different building technology elements are then connected via the main KNX bus line following the KNX standard for building automation.

The system is then managed by such things as sensors, parameters, etc. — which can then be easily controlled by end users with a laptop, smartphone, or tablet device.

System Components:

• Sensors:(e.g. push buttons, thermostats, movement) gather information and send it on the bus as a data telegram.
• Actuators (dimming units, heating valves, displays) receive data telegrams which are then converted into actions; and controllers and other logic functions (room temperature controllers, shutter controllers, and others)
• System devices and components (e.g. line couplers, backbone couplers).