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A-L supercharges DSL with vectoring

Thu, 09/22/2011 - 8:35am
Brian Santo

Alcatel-Lucent announced new VDSL2 line cards that include vectoring, which DSL service providers can use to significantly boost data rates on bonded lines to speeds faster than 100 Mbps.

In addition to line cards with vectoring capability built in, A-L also has a vector processing card.

The company claims this to be the first commercial vectoring product for VDSL2. The vectoring process resolves crosstalk on adjacent wires, enabling DSL signals on copper lines to operate at close to theoretical bandwidth rates.

A-L senior marketing manager Keith Russell noted that VDSL2 without vectoring is capable of 20 Mbps at 1,000 meters and 40 Mbps at 400 meters. That can be adequate for today's needs, but various projections suggest that consumers are going to need or want 50 Mbps by 2015 and up to 90 Mbps by 2020.

VDSL2 with vectoring can get service providers there, Russell said. "We can go to 100 megabits per second at 400 meters."

The company is introducing a line card that has 48 ports, with board-level vectoring across those 48 ports. Another set of 48-port line cards provide system-level vectoring.

A vector processing card with 192 ports (servicing four line cards) is scheduled to be introduced before the end of the year. Next year, the company intends to release a larger version with 384 ports (servicing eight line cards), Russell told CED.

In 2010, the company developed the first vectoring prototype, allowing the company to engage in extensive lab and field trials with service providers worldwide, including Belgacom, Telekom Austria and Turk Telekom, A-L said.

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