[plug] ADSL and modem / fax

[Jason Nicholls]

On Fri, Jun 01, 2001 at 05:02:54PM +0800, Paul Dean wrote:
> >My understanding is that ADSL somehow piggy backs on a existing line. Is it
> >still possible to use a modem on this line? Or even send / recieve fax's?
> 
> ADSL, splits the existing copper cable into two frequency sets 4Hz-22Hz for 
> normal telephones via a filter in between the phone and the wall socket, 
> and 22Hz-> for ADSL connections.

Well, perhaps that's what the telstra supplied filter does, but ADSL
operates as follows (roughly):

	125kHz - 207kHz (upstream)
	272kHz - 1.1Mhz (downstream)

> If you where to put your fax on the line with a filter yes it would work.
> Telstra will supply 3 filters included in the price of socket fitting, and 
> upgrade each existing socket in the house.

The filter is only a precaution.


Later,

Jason Nicholls
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