4 ms·

The idea here is to provide very high speed from the street (which has fiber) to the home or office using existing copper - the last 30 meters. Laying fiber in

The idea here is to provide very high speed from the street (which has fiber) to the home or office using existing copper - the last 30 meters. Laying fiber in the street is far easier than running it through buildings where every building has it's own challenges. Nice intro to the theory around data transmission limits: http://newsoffice.mit.edu/2010/explained-shannon-0115 http://newsoffice.mit.edu/2010/explained-shannon-0115

yareally 12y ago
That's more or less what Verizon FiOS and AT&T U-Verse do, since many connections are still copper at some point on transmission to homes/businesses. There's some latency overhead I noticed in comparison to straight DSL or Cable though.
philjohn 12y ago
That's what BT Infinity is in the UK. I currently get 80Mbps down and 19Mbps up - which is perfect for offsite backups of family photos etc. It's also totally unlimited, with no FUP - I've pulled down many hundreds of gigabytes per month (I work with very large data files and often work from home) and not heard so much as a peep from them about it.
- vertex-four 12y ago
  Also, they dropped the traffic management on the unlimited packages last year, so it doesn't throttle you ever.
  - deleted 12y ago
    [deleted]
- signal11 12y ago
  Specifically, that's BT Infinity 2 -- confusingly, BT use Infinity for their fibre-to-the-home product as well, Infinity 3 offers 200Mbps and Infinity 4 offers 300Mbps. Availability is limited to a handful of exchanges, however http://www.productsandservices.bt.com/products/broadband/faster-internet http://www.productsandservices.bt.com/products/broadband/fas...
- ajb 12y ago
  BT infinity is using VDSL. This scheme is G.fast, which is basically to move the fibre even closer to the home and get more bits over the last little piece of copper.
jpollock 12y ago
For more information, this appears to be attacking the "Cost to Connect" portion of the setup costs, which represent about half the cost of a FTTH deployment. http://www.ftthcouncil.org/d/do/33 http://www.ftthcouncil.org/d/do/33

yareally 12y ago

That's more or less what Verizon FiOS and AT&T U-Verse do, since many connections are still copper at some point on transmission to homes/businesses. There's some latency overhead I noticed in comparison to straight DSL or Cable though.

philjohn 12y ago

That's what BT Infinity is in the UK. I currently get 80Mbps down and 19Mbps up - which is perfect for offsite backups of family photos etc. It's also totally unlimited, with no FUP - I've pulled down many hundreds of gigabytes per month (I work with very large data files and often work from home) and not heard so much as a peep from them about it.

vertex-four 12y ago
Also, they dropped the traffic management on the unlimited packages last year, so it doesn't throttle you ever.
- deleted 12y ago
  [deleted]
signal11 12y ago
Specifically, that's BT Infinity 2 -- confusingly, BT use Infinity for their fibre-to-the-home product as well, Infinity 3 offers 200Mbps and Infinity 4 offers 300Mbps. Availability is limited to a handful of exchanges, however http://www.productsandservices.bt.com/products/broadband/faster-internet http://www.productsandservices.bt.com/products/broadband/fas...
ajb 12y ago
BT infinity is using VDSL. This scheme is G.fast, which is basically to move the fibre even closer to the home and get more bits over the last little piece of copper.

jpollock 12y ago

For more information, this appears to be attacking the "Cost to Connect" portion of the setup costs, which represent about half the cost of a FTTH deployment. http://www.ftthcouncil.org/d/do/33 http://www.ftthcouncil.org/d/do/33