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Tele-Communication (Telecom) Terms Glossary and Dictionary
VDSL2: Second Generation VDSL
Second Generation VDSL (VDSL2), an enhanced version of VDSL, specifies 8 profiles that address a range of applications including up to 100 Mb/s symmetric transmission on loops about one hundred meters long (using a bandwidth of 30 MHz), symmetric bit-rates in the 10-30 Mb/s range on intermediate length loops (using a bandwidth of 12 MHz), and asymmetric operation with downstream rates in the range of 10-40Mb/s on loops of lengths ranging from 3km to 1km (using a bandwidth of 8.5 MHz). VDSL2 includes most of the advanced feature from ADSL2. The rate/reach performance of VDSL2 is better than VDSL.
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