For questions about KNX: a standardized, OSI-based network communications protocol for intelligent buildings
KNX is the successor to, and convergence of, three previous standards: the European Home Systems Protocol (EHS), BâtiBUS, and the European Installation Bus (EIB or Instabus). The KNX standard is administered by the KNX Association.
KNX is currently the de facto standard in building automation in Europe. The KNX Association had 339 members/manufacturers from 37 countries. The KNX Association has partnership agreements with more than 30,000 installer companies in 100 countries and more than 60 technical universities as well as over 150 training centres. Member companies have more than 7000 KNX certified product in their catalogues.
KNX defines several physical communication media:
- Twisted pair wiring (inherited from the BatiBUS and EIB Instabus standards)
- Powerline networking (inherited from EIB and EHS - similar to that used by X10)
- Radio (KNX-RF)
- Infrared
- Ethernet (also known as EIBnet/IP or KNXnet/IP)
