VDSL
Broadband Internet Glossary
Broadband Internet — VDSL
Information on VDSL
VDSL (Very high rate Digital Subscriber Line) is a
DSL technology that allows broadband data services, including broadband Internet
access, to be carried a hybrid optic fibre/copper pair telephone
cable system. A VDSL broadband system may be symmetric
or asymmetric&mdsash;it may provide the same speed on uplink and
downlink or it may provide a higher speed on one.
VDSL is able to provide much higher data rates
than other forms of DSL because it uses a combination
of optic fibre and DSL technology, sometimes refered to as
"fibre to the kerb" (FTTC). Fibre to the kerb (FTTC)
involves deploying a fibre-optic cable to within close proximity of
the end-user and then transferring traffic to individual copper pairs
for the last segment to each individual user.
VDSL provides
asymmetric speeds of 13 to 52 Mbps downstream and 1.5
to 2.3 Mbps upstream over a single copper pair.
The cost
for this high data rate is a reduction in range
to between 300m and 1.4 km.
Other topics in our resources on Broadband Internet related to VDSL include:
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