Verizon 100Mbps VDSL? > VDSL Deployment

VDSL Deployment

Something im not getting here. Most apartment buildings have coax in them so why cant VZ just do what it is doing and fiber those apartment buildings to the ONT then use COAX to the router so they can get ride of the copper.

Very valid point and true - But , most existing coax in MDU's are owned and were previously installed by existing cable company servicing your building.

reply to op0
Didn't we read something like that a few months ago?

reply to usbbtech
Is this an indication that they are balking at the price of MOCA coax installations in favor of overpriced vdsl solutions, combined with pricey fttn/fttc solutions?!!?

That's like going from the frying pan into the fire and a major step back. COPPER PAIR is NOT STABLE ENOUGH FOR THE 100/100 solution in MDU's, this was PRECISELY why MOCA is the solution. I'd be surprised if the coax deployed in mdu's is more antiquated/unstable bandwidth-wise than copper pairs!!
The minimum would be rg58, and that's good for around 1000mhz, but no more. RG6, quadshield (rare) is good for around 2.5ghz using latest technology and amplification. Newer Hybrid coaxes are rated at 5-6ghz range but majorly expensive per foot, might as well run fiber.

Originally, Verizon committed the dsl deployments ONLY to areas which had NOTHING, and maybe one cable provider who is low on the food chain (ie 1.5-6megabits deployed). If you want to give sucky deployments, send it to crappy franchises like Maryland, who is fighting video. They'll love when the copper pair gets pissed on from AM radio interferance that their vdsl goes down to ZERO!, HAHAHA! serves them right for trying to shake down Verizon.

reply to usbbtech

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In this realm I truly dont think a 100Mbps connection will be achieved unless it was a new construction building ,

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Hey ... It's fact that "SCIENTIFIC" -ly , it can be done , but over my years as a RBOC cable tech since the deployment of DSL service, which in the original Bell Atlantic trial years ago (was VDSL) in the Burke , VA area ... it wasn't reliable as the "scientific" engineers stated. With the evolution of xDSL over the years it has matured greatly , but any xDSL service is susceptible to "real life" factors associated with copper. This is now true and evident with ADSL2 deployments , yes it works but the pairs have to be conditioned very well for "scientific" yet close to what they state. Yes its possible , but in a NYC buidling were talking copper in excess of 30+ years , with splices , excessive oxidation from sheath failure etc ... this is the point I was basing my statement from , and over yrs of personal xDSL experience. But yes it can be done , but for optimal "scientific" performance would be a new construction over 5e+ CAT 5 ...Enclosed is a quick excerpt from the DSLFORUM Whitepaper on VDSL factors and interference when in regards to an MDU environment ... Not disagreeing with you , but in "real life" service it will most likely not be a true 100Mbps service (with that satble speed) in an existing structure like a NYC 100 yr old building....

4. Unregulated interference issues

VDSL may suffer interference from other systems using spectrum shared with VDSL. This interference may arise directly from signals that are intended to be confined to in-premises telephony wiring, or indirectly from signals on other media that couple into telephony wiring.

The class of direct interference sources includes the HomePNA and related ITU G.pnt transmission systems. It has been demonstrated that these systems do in fact interact - even if they are used by different customers served by loops in the same cable. In an ideal world, whenever G.pnt is deployed, there should be a filter to isolate VDSL on the loop plant from in-premises wiring carrying G.pnt signals. However since G.pnt is user-installed, this is hard to ensure, even if unbundling regulations theoretically control equipment that can be connected to the loop plant.

DSL FORUM VDSL EXCERPT -

Unregulated interference issues

VDSL may suffer interference from other systems using spectrum shared with VDSL. This interference may arise directly from signals that are intended to be confined to in-premises telephony wiring, or indirectly from signals on other media that couple into telephony wiring.

The class of direct interference sources includes the HomePNA and related ITU G.pnt transmission systems. It has been demonstrated that these systems do in fact interact - even if they are used by different customers served by loops in the same cable. In an ideal world, whenever G.pnt is deployed, there should be a filter to isolate VDSL on the loop plant from in-premises wiring carrying G.pnt signals. However since G.pnt is user-installed, this is hard to ensure, even if unbundling regulations theoretically control equipment that can be connected to the loop plant.

Indirect interference can arise from signals carried on other media such as electrical power supply cables both outside and inside the home. These are relatively large signals on wiring that may be installed close to telephony cables carrying VDSL, that may cause interference by electromagnetic coupling. From a consideration of likely worst-case coupling, the existing EMC regulations may not be sufficient to prevent significant performance impairment to VDSL. However in some countries the new EMI emissions regulations discussed above may have the side effect of limiting deployment of the sources in question.