The Crestron CGEIB-IP is a control interface by which a Crestron control system can be coupled to a KNX (previously known as EIB) installation using either RS232 or Ethernet (TCP/IP). Also, the Crestron CGEIB-IP filters the desired information out of received KNX/EIB messages and sends them to the Crestron control system via the same interface (RS232 or TCP/IP), which provides the Crestron installation with live updates of the KNX/EIB installation.