 C-Bus is currently available in Asia, the United Kingdom (installed in Number 10 Downing Street, Wembley Stadium and Manchester City Football Club), Russia and a number of other countries are now using this system.The C-Bus wireless (RF) system and wired C-Bus Occupancy Controllers can be retrofitted using the existing mains wiring.C-Bus is compatible with Translink C-Bus Gateway, OPC, DALI, DSI, BACnet, TCP/IP, Control4, Crestron, AMX, RTI, LonWorks, ModBus, Charmed Quark Controller, the Comfort Intelligent Home System and some other protocols through interfaces.