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KNX: The Standard in Home and Building System Technology

KNX is a uniform, manufacturer-independent communication protocol for intelligently networking state-of-the-art home and building system technologies. KNX is used to plan and control energy-efficient solutions for more functionality and convenience while simultaneously reducing energy costs.

KNX System Features:

A distributed bus system that allows devices to exchange information directly
Bus voltage: 24 VDC (+6/-4 V)
CSMA/CA protocol protects against data loss resulting from telegram collisions.
Up to 12,000 bus nodes can be connected
Data transmission rate of 9.6 kBit/s, termination resistors not required

KNX Simply Explained

For more than 20 years, KNX has proven itself as a global standard for home and building automation in accordance with EN 50090 and ISO/IEC 14543. A great advantage of KNX is its remote configuration: Instead of a central device, the functions are accommodated in the individual bus subscribers. The sensors, such as switches and presence detectors, send control commands directly to the lights, blinds, heating and ventilation systems. Assignments and functions are easily configured in the “Engineering Tool Software” (ETS) and can be modified or adjusted at any time.

KNX supports different transmission media, e.g., twisted-pair cable (KNX TP), ETHERNET (KNX IP), radio (KNX RF) or Powerline (KNX PL). With KNX, devices from different manufacturers are compatible and can be flexibly combined in one comprehensive solution. As each device has its own microprocessor, no control station is required.