Quote:
Originally Posted by kangocartman
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My feed is not shared in any way.
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Of course your feed is shared ultimately via a tap at the street cab or in some cases via a pit in the street!
However that's just semantics but your description of how the specific "feed" to your external ominibox is what needs clarifying back ultimately to the street drop and the cab/pit itself.
Originally you appear to state that "repull" crew are attempting to lay RG11 on your drive? Subsequent post(s) appears to state your neighbour arranged for your service to be supplied via his "drive"?
You even later specify that because he's moving you want your service provided via your drive?
Since "WE" don't know the relative placements of your respective houses(property boundaries nor drives or whether they're shared in part) with respect to main street ducting then you'll need to both clarify and check for visible cable drops from the street run on the boundaries of both properties to establish whether the "feed" is shared at that point.
In a "conventional" street (for want of a better word) each property is adjacent to each other along the length of the street. However it happens that in some cases one (or even several) property may lie behind each other and have shared access to the public highway?
Either way you should start at the street looking for CATV pits on pavement and/or smaller round/square access points at boundary of nearest (or each property) nearest to the street. You may see visible small portion of ducting from an adacent cable T inspection cover penetrating a boundary fence/wall if you have one. If both properties have a frontage to the public highway in an adjacent "side by side - conventional" layout then you would expect an individual feed for each property. If their is only one then you may well have one "shared feed"?
In that latter scenario your own or your neighbours feed will typically be split from either of your individual external omnibox's mounted on the walls of your houses? Allowing for individual feeds to other rooms for seperate BB or TV STB's in additional rooms that may be laid horizontally or vertically then you should be able to establish this by the number of visible cables on each omnibox?(remember that a thinner telephone cable may exit the box which should be ignored in this context or may be part of a siamese type cable which also has the larger coax).
Whether you require RG11 (which has less distance loss and better propogation characteristics) rather than RG6 will then depend on relative distances from the Street Cab and whether a single street drop does in this case feed both properties?
Because VM's network inherited different original cable franchises that deployed slightly different CATV/RFI topologies originally then you can't apply a single rule to cover all the UK.
For example if I walk down my street in Hove then a street cab is located every 250-300m approx covering 48 domiciles split between both sides of the road.
Each frontage is approx 15m including the intervening shared drive between semi detached houses. Each property appears to be connected by RG6 and thus the worst case user to Street Cab length should be less than 150m worst case.
In another area/street with a terraced scenario then each frontage could even only be 5m and thus a 96tap street cab could be used instead of the 48tap cab in my scenario in order to reduce the number of street cabs(and thus potentially the number of amplifiers in the cascade chain back to O/E Fibre Node)?.
Good practise suggests you don't cascade (unpowered) splitters which is what Seph is trying to establish. So in an ideal scenario you will have say an individual feed from an individual tap in a streetbox and the only split will be either in your omnibox and/or after your internal wallbox. (viz 2 or less).
If say your street run/dop is more than say 150m then depending on the signal integrity(and any amp alignment) at your street cab then RG11 may be required instead of lower cost RG6?
One of the many reasons you can end up in this scenario is that from initial flood CATV cabling back to around mid 90's (and in some areas far earlier) then the HPPN (Homes Passed Per Node) calculation may have changed with new developments(larger property/site replaced with one or more dwellings) or (in case of some areas of Brighton & Hove, and Bath/Bristol etc) 3 story town houses converted to flats. Thus in 20years numerous public utility maintenance/upgrade work could potentially damage existing CATV ducts and reduce their cabling capacity, and street cabs become congested with multiple splitters off limited original tap board capacity and so on.
VM is slowly addressing this Cab congestion as well as re-segmenting in some cases to blow fibre deeper into the network closer to the user to reduce the HPPN and amp cascade numbers closer to N+1 (and eventually at some far far future date actually potentially facilitate even FTTH/P).
Of course unless you're a sad individual like Seph or myself all this is hidden from a laymans perspective unless you are specifically looking for the clues?
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