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Originally Posted by Pierre
Ignore the jargon and bull****. Simplified; If you are in an ntl area you are rarely more than a couple of hundred metres away from a nodal cab.
You are not always fed from a hub site, in fact Kirklees only has one hub site, In fact if you are near a hub site - good for you.
from a nodal cab (ex cabletelarea) there is a DA cab which you may be fed from.failing that it will be a DP cab. But its no great shakes. Like I say it's never more that a few hundres metres. Can't speak for other franchises but they're never that different.
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I disagree with your point about there being no hubsite!
Cardiff CA area has no seperate hubsite as it's located in the same building as the headend. I was aware that Kirklees had only the one hub, but will you agree/disagree with me that the hub contains DFB racks to feed the nodes. (ie: a hubsite in the headend)
This is because of the topology of the build, but is the exception to the rule as are the ex-cwc areas using EDFA's.
I have never visited Kirklees, but I understand they saved on building hubsites and YAG/DFB feeds forward/DFB return. One trade off is the increase in DFB's to feed nodes because the long lengths of fibre to some of the nodes means they are not able to split as many times.