An ISP of their own (was RE: [rescue] Being jobless)

Phil Stracchino alaric at
Wed Jul 30 17:50:29 CDT 2003

On Wed, Jul 30, 2003 at 03:54:01PM -0400, Sandwich Maker wrote:
> "From: "Joshua D. Boyd" <jdboyd at>
> "
> "
> "How is HDSL different from ADSL?  I know that it is 1.5 both ways, but
> "other than that?  I'm within 20k feet of my CO, and they refuse to give
> "me 640k or 1.5mbit ADSL service.
> adsl piggybacks on your pots pairs; it uses modem-like modulation
> above the voice band to carry the data.  hdsl uses its own wires and a
> more direct digital modulation.

Right, that's the detail I forgot.  ADSL can be piggypacked onto an
existing voice line, using a signal splitter; all other xDSL variants
require their own dedicated wire pair (or pairs).

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