Re: 9-11 video: best i have seen yet
- From: Derek ^ <usenet@xxxxxxxxxxxxxxxxxx>
- Date: Sun, 26 Feb 2006 12:15:47 +0000
On Sun, 26 Feb 2006 00:22:00 +0000, banana
<banana@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
7 Xposted groups removed. NIN won't let me Xpost to more than 5.
Why does any line need to be split for any signal to travel along it?
This is getting to the core of what I would be concerned about.
An old loop disconnect (pulse dialling) telephone would short out the
bell wires to stop other phone extensions tinkling whilst it's
dialing, effectively putting the bell capacitor across the a-b pair.
This would short out the ADSL signal and cause the modem to lose sync.
Modern tone dialling telephones don't do this and *might* be OK
without a filter.
E.g. say I want to rent a line just for a broadband internet connection
and not for anything else.
The the digital output of the microfilter is wired straight through,
if you don't have any phones on the line you don't have to have a
filter, but remember you would need a BT >RJ11 lead (in fact an old
analogue modem lead) not the RJ11 >RJ11 that comes with the ADSL
modem, or an adaptor. The microfilter fulfills this function for about
the same price and provides an analogue phone socket as well. Whenever
I've signed up for adsl the ISP has provided the filters as part of
the package.
DG
.
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