subject: what is VDSL2? posted: Fri, 02 Jun 2006 00:23:53 +0100
[100Mbps up and down, over a standard phoneline, I'd get quite
excited but I know in a few years, I'll be forwarding another mail
like this, and it'll be 10Gbps up and down, etc - Stu]
Press Release
International Telecommunication Union
For immediate release
New ITU Standard Delivers 10x ADSL Speeds
Vendors applaud landmark agreement on VDSL2
Geneva, 27 May 2005 - The International Telecommunication Union (ITU)
today finalized work on new technical specifications that will allow
telecoms operators around the world to offer a `super´ triple play of
video, Internet and voice services at speeds up to ten times faster
than standard ADSL.
The ITU-T Recommendation for very-high-bit-rate digital subscriber
line 2 (VDSL2) will allow operators to compete with cable and
satellite providers by offering services such as high definition TV
(HDTV), video-on-demand, videoconferencing, high speed Internet
access and advanced voice services like VoIP, over a standard copper
telephone cable.
The new VDSL2 standard delivers up to 100 Mbps both up and
downstream, a ten-fold increase over "plain vanilla" ADSL. By doing
so, it provides for so-called `fibre-extension´, bringing fibre-like
bandwidth to premises not directly connected to the fibre optic
segment of a telecoms company´s network.
As well as addressing fast-growing consumer demand for high-speed
multimedia services, VDSL2 offers carriers a solution which is
interoperable with the DSL equipment many already have in place,
expediting migration of customers to new VDSL2-based products. In
addition, VDSL2 will work both legacy ATM networks and next
generation IP-based networks.
Yoichi Maeda, chairman of the ITU Telecommunications Standardization
Sector (ITU-T) Study Group responsible for the work, said: "We have
leveraged the strengths of ADSL, ADSL2+, and VDSL to achieve the very
high performance levels you will see with VDSL2. This new standard is
set to become an extremely important feature of the
telecommunications landscape, and is a landmark achievement for our
members, many of whom are relying on this Recommendation to take
their businesses to the next level."
VDSL2 is seen by many operators as the ideal accompaniment to a fibre-
to-the-premises (FTTP) rollout, where fibre optic lines are used to
link large premises like office or apartment blocks to the PSTN, and
ordinary copper cables used within the building to connect tenants or
residents to high-speed services.
Ready for immediate deployment, the new VDSL2 Recommendation (ITU-T
G.993.2), will continue to foster competitive global markets for high-
speed equipment, assuring a level playing field for developers and
vendors.
