7 Oct
2009
7 Oct
'09
11:15 a.m.
Scott Howard wrote: <snip>
So you're saying that if I put in an 8Mbps ADSL1 connection, then I'm going to get a guaranteed 8Mbps point-to-point back to the exchange, regardless of the quality of my phone line, or the distance from the exchange?
<snip>
(I'm not saying that the article is right, but...)
ADSL systems will retrain to a lower rate as line conditions (SNR) change for the worse. The attentuation characteristics of a given pair will change of time due to a number of factor, including but not certainly limited to physical wear, moisture invasion, localized source of interference, sunspot activity etc. Are dsl plants subject to localized environmental conditions? Absolutely.
Scott