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Austinloop

join:2001-08-19
Austin, TX
kudos:1
Reviews:
·AT&T U-Verse

reply to Simba7

Re: Duh..

" They're expecting an unshielded copper pair to handle modern bandwidth demands?"

The copper pair will only be unshielded in most cases the length of the drop from the terminal to house. Cable is shielded, or at least it always was during my almost 30 years with SWB/SBC/AT&T.


Simba7
I Void Warranties

join:2003-03-24
Billings, MT

said by Austinloop:

The copper pair will only be unshielded in most cases the length of the drop from the terminal to house. Cable is shielded, or at least it always was during my almost 30 years with SWB/SBC/AT&T.

The problem is, most areas are still using the decades-old lines without hope of updating them or even checking on them for damage or signs of old age.

Most copper pairs are not certified for anything else besides voice, and even that is iffy.
--
Bresnan 30M/5M | CenturyLink 5M/896K
MyWS[PnmIIX3@3.2G,8G RAM,500G+1.5T+2T HDDs,Win7]
WifeWS[A64@2G,2G RAM,120G HDD,Win7]
Router[2xP3@1G,2G RAM,18G HDD,Allied Telesyn AT2560FX,2xDigital DE504,Sun X1034A,2xSun X4444A,SMC 8432BTA,Gentoo]

Austinloop

join:2001-08-19
Austin, TX
kudos:1
Reviews:
·AT&T U-Verse

That wasn't what you said in your original statement. How would you suggest checking for damage on buried cables? Dig them up every how many years?

For example, the cable that serves my house was placed pre 1979 and has no problems. I get a full 25 meg profile on U-Verse.



tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:8
Reviews:
·G4 Communications
·Fairpoint Commun..
·Hollis Hosting

reply to Simba7

said by Simba7:

Most copper pairs are not certified for anything else besides voice.

That is true but DSL is designed to work over copper. The larger issue is distance. If the circuit is short DSL works just fine.

The problem is to compete with Cable circuit needs to be shorter then 10,000 feet which requires investment in expensive remote terminals.

/tom

Skippy25

join:2000-09-13
Hazelwood, MO

Lets correct your statement a little.

To compete with Cable, DSL needs lines to be shorter than 1000ft.



NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:9

reply to Simba7

said by Simba7:

The problem is, most areas are still using the decades-old lines without hope of updating them or even checking on them for damage or signs of old age.

Most copper pairs are not certified for anything else besides voice, and even that is iffy.

Probably true for Qwest/CenturyLink. But I see a lot of new, aerial copper in SBC/AT&T areas I travel through.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:9

reply to Skippy25
Let's split the difference. I am doing just fine on 3,300; let's call it 3,500 feet max.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


qworster

join:2001-11-25
Bryn Mawr, PA

reply to Skippy25
You are wrong. With pair bonding, DSL can provide speeds of over 10 mbps or more at 10,000 feet.



tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:8
Reviews:
·G4 Communications
·Fairpoint Commun..
·Hollis Hosting

reply to Skippy25

said by Skippy25:

To compete with Cable, DSL needs lines to be shorter than 1000ft.

Well I guess that all depends on your definition of "compete."

VDSL2 can deliver 15Mbp/s rates out to 3kft and 8 to about 7kft.

But you are correct Cable is able to deliver significant speed over the coaxial portion of the network between the node and customer.

Another important consideration is how well the ISP has provisioned their internal network and peering. Fast first-mile access is wasted if they are unable to move the data within their network and get it to the Internet.

/tom

silbaco

join:2009-08-03
USA

VDSL2 can do better than that. 50mbps at 3300ft without bonding. 100mbps can be achieved if within 1600ft, still without bonding. Finland has several providers offering 100mbps on VDSL2.



Simba7
I Void Warranties

join:2003-03-24
Billings, MT

said by silbaco:

VDSL2 can do better than that. 50mbps at 3300ft without bonding. 100mbps can be achieved if within 1600ft, still without bonding. Finland has several providers offering 100mbps on VDSL2.

Too bad we won't have that for quite awhile. Not to mention, ADSL is still widely used throughout this country.


NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
kudos:9

said by Simba7:

Too bad we won't have that for quite awhile. Not to mention, ADSL is still widely used throughout this country.

AT&T is actually retiring ADSL equipment in their 22 states as they move users to "IPDSLAM"; which is either ADSL2+, or VDSL, depending on the location.

MT is CenturyLink, yes?
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


Simba7
I Void Warranties

join:2003-03-24
Billings, MT

said by NormanS:

MT is CenturyLink, yes?

Unfortunately, yes. I doubt CL will ever upgrade this state to anything besides ADSL. Heck, Optimum is kicking the crap out of them at the moment (30x5 vs 5x896k). They don't seem to care.

nasadude

join:2001-10-05
Rockville, MD
Reviews:
·Verizon FiOS

reply to Simba7
don't forget stuff like analog pair gain systems, which is what I was on (still am as far as I know). this is old technology and is limited to ISDN speeds (128K). I never could get DSL (and still don't think I can) because they didn't want to upgrade that part of the system.


Nemesis158

join:2012-09-15
Spokane, WA

reply to Simba7
I Live ~3mi away from the terminal that my (qwest) CenturyLink DSL comes through. Because of a glitch i know even our 40 year old bell telephone line can handle 3.3mbit. After i informed a tech of this apparent glitch they dropped us back to the 1.3 we were getting before. the problem is the terminal is only fed by T1 circuits (8 per DSLAM, with one DSLAM providing 139 different connections) so it wasnt working at all. if they ran fiber to the terminal im sure we could all get at least 3.5 out here. more if they put a new terminal in closer to my house.....

Actually, there is already PUD owned fiber optic lines 150ft from my front door, i really hope CL uses one of their lines to put a terminal closer to my house on......


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