Hey,
I've been wondering how this Virgin Media technology works. My understanding is that you start off with a coax cable that goes from house to a green cabinet in the street. Inside this cabinet is an RF distribution box with a load of F-type taps. From this street cabinet/RF unit is a single fibre optic cable which runs to a "UBR (?)" located in some exchange-style building.
If my understanding is correct, then where does the bandwidth contention lie? In the green cab, or the UBR? During the day time my 20mb connection rarely achieves 10mb, which I can accept, but is it the UBR becoming busy or the local green RF amp? How many street cabinets will a UBR take, for example?
Many thanks in advance
