My FTTC cabinet has been installed some 10 metres (and closer to me) away from the old cabinet. This got me thinking, is the cabinet being physically closer to me a positive or a negative?
So it got me wondering how they make the connections? I can only think of two practical ways.
1) New single pair from the FTTC cabinet carrying VDSL to the old cabinet where it connects with my pair, presumably some filter is needed at the connection to my pair in the old cabinet to stop the VDSL signal going back the wrong way to the telephone exchange!
2) 2 pairs are used. My connection between me and the exchange in the old cabinet is broken, the exchange end uses 1 pair to take the voice line to the new FTTC cabinet where VDSL is added and another pair takes the VDSL and telephone signal back to the old cabinet where it then joins back to my pair going to my home.
Or some other method?
I think the tendency is that if the cabinet is sited physically closer to us than the old cabinet, we all see it is a positive as we know the less VDSL travels the better, but 1 or 2 above means it can only be a negative as you have the an extra journey between FTTC cab and the original cab.
I'm not expecting 10 metres or so to make much difference in my case, it just got be thinking about how they are wired.