Quote:
Originally Posted by Stuart C
Err, AFAIK, BT aren't planning to replace the "Last Mile" as part of the 21CN programme.. So, ADSL will still have the same problems, just a more efficient backend connection from the exchange to the network (which, if I understand ADSL correctly, isn't the problem anyway).
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That's correct BT are NOT replacing the speaker wire connection for the last mile. Its just not going to happen anytime in the next 10 years. That came from a Senior at a main BT exchange in Manchester City Centre. His words were
Everyone seems to think they are going to have some sort of super high speed connection out of this. Never going to happen.
21cn is all to do with switches and ip. Nothing at all to do with the customer end.
BTW
The DSL gang always shout VDSL well i suggest they read up on it and smell the coffee
Quote:
VDSL PROJECTED CAPABILITIES
While VDSLhas not achieved the degree of definition of ADSL, it has advanced far enough to discuss realizable goals, beginning with data rate and range. Downstream rates derive from submultiples of the SONET and SDH canonical speed of 155.52 Mbps, namely 51.84 Mbps, 25.92 Mbps and 12.96 Mbps. Each rate has a corresponding target range:
12.96 - 13.8 Mbps 4500 ft 1500 meters
25.92 - 27.6 Mbps 3000 ft 1000 meters
51.84 - 55.2 Mbps 1000 ft 300 meters
As with other broadband technologies, end-user speeds will depend upon the distance of the feed or loop to the local telephone company, or telco, office. Shorter distances afford faster rates, while longer loops degrade signal and speed. One drawback of VDSL is that it requires a very short loop of about 4000 feet (1219 meters), or three-quarters of a mile
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so i am willing to wait and go with 50 meg and beyond, Because it is not going to happen soon on a speaker wire
Note the drawing is in Feet not Meters