Alcatel Lucent achieve 300 Mbps DSL

ADSL 2+ is over two lines too. i think that it's not two lines really, but rather 4 cables, remember that the rj-11 has 4 copper connectors, while most adsl-normal modems and phones only have 2 copper connectors.

Most ADSL installations have a 2-pair cable from the DP to the house (jack). If you only have 1 ADSL service then there is already a spare pair of copper cables to your house.

@fragtion_ : if "most" of the copper cable has been stolen, then why the huge demand for LLU?
 
i still think copper maintenance is too expensive and unreliable. the future must surely be in fiber optics capable of speeds in excess of 1gb/s. Also the only thing limiting the transfer rate is the speed of light and our method of utilizing light to deliver higher transfer speeds.

No, not quite. The main thing that limits transfer rate is bandwidth. Latency is affected by the speed of light, but over short distances (i.e., the local loop) you are unlikely to notice the difference between fibre and copper i.t.o. latency.

And the bandwidth of fibre is not unlimited. From memory (10+ years now since that High-speed networking module at varsity ...) I seem to recall that the bandwidth of single-mode fibre is around 25 Tbps. That sounds like a lot, but we are actually quite far from being able to achieve that at the moment. Still, 25 Tbps is very impressive compared to copper.
 
all i wanna know is when is it coming out and where can i get it
 
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