 tschmidtPremium,MVM
join:2000-11-12
Milford, NH
kudos:5
 ·Fairpoint Commun..
 ·Hollis Hosting
| reply to openbox9
Re: haha said by openbox9:I would guess that most house built in the last 30 years would have at least two pair ran to them. Need to make a distinction between customer drop cable and feeder cable. You are correct drop cable is typically 2-pair if aerial, more if underground. For example when we built our home phone company provided 5-pair direct burial cable.
Customer drop is not the problem, it is relatively cheap and fast to add more pairs if needed. The economic problem is size of the feeder cable running down the street. That is much more expensive to upgrade.
/tom |
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 a333A hot cup of integrals please
join:2007-06-12
Rego Park, NY
 ·Cingular Wireless
| Also, even after adding enough pairs to make 3 pairs per customer, there still remains the problem of having over 30-50% of the pairs in a trunk all carrying VDSL signals. As some may remember from the DSL days, if over a certain percentage of the lines in trunk have DSL/other high-frequency signals being carried through them, they may have an adverse impact on each other, at one point causing severe noise and crosstalk issues.
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Linux: Because a PC is a terrible thing to waste
My Location: /universe/earth/north-america/USA- fsck that!!! |
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openbox9
join:2004-01-26
Alexandria, VA
kudos:2 | reply to tschmidt
If that's a limitation in areas the T really wants to deploy pair bonding, then I would expect those areas would be prime candidates for upgrading to FTTH. I would also think that the capacity of the feeder cable only becomes an issue when service uptake reaches a certain level in an area. Maybe most areas haven't reached that saturation point of service uptake yet? |
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