Also Daviduch, if u get the 622 it will come with a duplexer and a couple of black cables to connect to the receiver! This is for running one cable from the switch to the reciever instead of two, if you go the one cable route, do not use the small black cables, have the installer make u some out of the rg6 cable, I had a few problems with this , but now resolved due to the good cables! :up