825 Mbps ADSL over copper wires
Nokia Siemens Networks (NSN) reports that they have successfully tested a technology that could drastically increase the data carrying capacity of standard copper wires.
The company says that they achieved data transmission speeds of 825 megabits per second (Mbps) over 400 meters of bonded copper lines and 750 Mbps over 500 meters.
At these speeds, network operators could optimize existing, widely deployed copper infrastructure to provide bandwidth-intensive services for years to come, NSN says.
Nokia Siemens Networks used circuits that involve the creation of a virtual (or ’phantom’) channel to supplement the two physical wires that are the standard configuration for copper transmission lines. According to NSN the approach is known as Phantom DSL.
“Laying down new optical fiber to the home remains costly, though it is capable of delivering very high speeds and is a definite solution for long-term bandwidth requirements,” said Eduard Scheiterer, head of broadband access business line, Nokia Siemens Networks.
“However, the innovative use of technologies such as phantom circuits helps operators provide an efficient last mile connectivity with existing copper wires.”
Phantom DSL promises a bandwidth increase of 50-75% over existing bonded copper lines. NSN says that this prolongs the life of copper networks, delaying the need for fiber rollout and protecting the operator’s existing capital investments.
Nokia Siemens Networks says that Phantom DSL will become an integral part of the company’s DSLAM products hiX 562x/3x.
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