Quite simple.
you need a Beovision with puc, puc ir cable, Beo6, config. tool with the puc included you want to use (or build your own Beo6 puc).
a fire tv, laptop with flirc program.
- select an av socket to connect your fire tv
- select a puc
- connect the ir cable to the correspondind ir socket and fasten ir transmitter on the flirc
- progeam the flirc as described in the flirc program with help of your Beo6 and the puc.
- plug the flirc into the fire tv usb socket.
- fasten ir transmitter on the flirc
- select the video source you have choosen for the av socket connected to the fire tv.
- control your fire tv withe Beo4/5/6, even from linkrooms (you will need an additional HDMI - composite converter to get audio/video on your link tvs.
- have fun.
Stefan