site Search:


 
    All Forums Hot Topics Gallery






how-to block ads


 
Search Topic:
Share Topic
Post a:
Post a:
AuthorAll Replies


Ignite
Premium,VIP
join:2004-03-18
UK

reply to richardpor

Re: ATT Thinking Outside the Fiber Box

Actually I don't think you get it.

FTTC / FTTK if it isn't done properly is pointless. As ATT are in their infinite wisdom trying to get it done as quickly as possible using existing junction cabinets, rather than following the more appropriate course of actually getting the fibre into neighbourhoods and providing sub 1.5kft loops to everyone to actually see some benefit from the VDSL they will be rewiring again in the not too distant future.

For MUDs, FTTB Fibre To The Building is a perfectly viable solution, with extremely short copper loops from an MSAN in the basement to supply the dwellings in that complex.

For a lot of deployments outside of MUDs there is no real point in anything bar a full FTTP rollout. Due to distance limitations, crosstalk potential, initial cost of putting fibre in the loop and future upgrade costs anything else can be unviable.

I am aware that some people comment on 'leveraging the existing copper' however given that in a lot of cases that copper has been there for decades I'd say it's quite leveraged enough

Either way doing it on the cheap is an extremely bad idea, and results in an investor pleasing lower initial investment, sure, but it's a 'pay less now, pay again, and again later'.

Even in your case FTTB is an interim solution and eventually a full fibre rollout will be required, just a question of when.

So unless the US now suddenly has the population density of Hong Kong with line after line of huge apartment complexes I'd say FTTP is a good solution especially if pre-wired or replacing the existing POTS wiring completely. In lower population density areas where there would be issues with getting enough loop lengths below 1.5kft on MSANs I'd call it the only solution.

I am not aware of Verizon's MUD solution, unless you are I don't think either of us are in a position to judge it, I just go by the experience of NTT Japan.

Either way ATT's solution makes little sense from any perspective bar the short term financial one, it isn't an upgrade for the future for those outside MUDs it's one just to keep the money men pleased for now.


Delta70

@swbell.net

Actually Verizon's Mud solution is the ont 621.

»www.tellabs.com/products/1000/tl···_621.pdf



Ignite
Premium,VIP
join:2004-03-18
UK

Thanks for that, looks like a pretty elegant and efficient solution in terms of the space needed in each apartment.


Monday, 28-May 10:23:14 Terms of Use & Privacy | feedback | contact | Hosting by nac.net - DSL,Hosting & Co-lo
over 12.5 years online © 1999-2012 dslreports.com.
Most commented news this week
Hot Topics