Thanks again LV. The filter will go in the cellar jack. The DSL modem may
also go there. Tony
----- Original Message -----
From: "L. V. Lammert" <[EMAIL PROTECTED]>
To: "Central West End Linux Users Group" <[email protected]>
Sent: Tuesday, June 28, 2005 12:29 PM
Subject: Re: [cwe-lug] PCI Nic, Router, for 100Mbps
On Tue, 28 Jun 2005, Anthony Lordi wrote:
Thanks, L.V. I have a cellar jack that separates SBC from the in house
phone
lines that I use to check the SBC line
Yep - that's the place to put the fiter. Just put a 2-way there, betweeen
the filter and the demarc, and you're all set. Plug the filter into one
side of the 2-way, and the rest of the voice phones into the filter.
Use the other side of the 2-way for the DSL line - you can put the router
there at the demarc, or run a separate line to wherever you wish to mount
it.
I would like to know what
frequencies they are filtering? Phone is analog audio frequency probably
about 3K cps limit. Is DSL an interrupted carrier?
Never heard of an 'interrupted carrier'. The DSL signal is actually a
digital modulation, and, as such, occupies a frequency bandwidth *much*
higher than any analog phone should respond.
The main problem is that no two phones are made the same - you can plug
two different phones into a line, on one you will hear scratching when the
DSL is connected and active, on the other it can be perfectly quiet.
What carrier frequency?
You'd have to Google a spec for that. As it's not an RFC, I'm not sure
what specifications govern the various DSL signal specs.
Does the DSL modem modulate/demodulate like the dialup modem at a
different
frequency?
No, it's a put digital signal (as I understand the differences). The
modulation is similar to a T1 circuit, but, obviously, with a different
signal protocol.
I'll read the friendly manual if I have to. Tony
http://www.telsyte.com.au/standardswatch/dsl_bonding_a.htm
http://www.telsyte.com.au/standardswatch/dsl_bonding_a.htm
http://www.lightreading.com/document.asp?doc_id=40101&site=lightreading
http://www.dslforum.org/
Lee
================================================
Leland V. Lammert [EMAIL PROTECTED]
Chief Scientist Omnitec Corporation
Network/Internet Consultants www.omnitec.net
================================================
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