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. Crestron always provided a valuable solution to interoperate with a KNX/EIB,network by means of the CGEIB: a DIN-rail mountable EIB node that could be, controlled only over RS-232. Crestron has expanded their CGEIB with the possibility to be controlled over TCP-IP. This CGEIB-IP is a new unit that replaces, the CGEIB, but as it still holds an RS-232 port as well, it is perfectly backwards, compatible. So, for replacing the CGEIB in an existing installation, one can install, this CGEIB-IP.