asterisk users - Feb 2004 - DSL (DMT) goes down when X100 plugged in

Hi all, I have a strange problem. Whenever I plug in the base cord connected
to the X100, my DSL service goes down. I DO have a Cisco filter (the one
that comes with the product) installed.

Has anyone else seen this problem?

There was a similar entry in the archives, but it was without a filter.

Thanks,

Tom Schaefer

Thomas M. Schaefer wrote:
> Hi all, I have a strange problem. Whenever I plug in the base cord
connected
> to the X100, my DSL service goes down. I DO have a Cisco filter (the one
> that comes with the product) installed.
> 
> Has anyone else seen this problem?
> 
> There was a similar entry in the archives, but it was without a filter.
> 
> Thanks,
> 
> Tom Schaefer
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 
> 
I have been told that when I plug my X100p into the line I get a 36 Khom 
loop condition and this may be affecting my ADSL connection (it keeps 
dropping the line).
It may be to do with impedance differences here in the UK, But I know 
very little about Such things.

On Tue, Feb 24, 2004 at 06:17:27PM +0000, Chris Lee
wrote:
> I have been told that when I plug my X100p into the line I get a 36 Khom 
> loop condition and this may be affecting my ADSL connection (it keeps 
> dropping the line).
> It may be to do with impedance differences here in the UK, But I know 
> very little about Such things.
are you using "modprobe wcfxo opermode=1", as I believe is recommended
for most european lines?

I'd reach for the Oxometer on that one - 36k shouldn't make any
difference.
However, the X100P may be introducing some capacitance on the line that 
would affect the ADSL signals - but the purpose of filters is to stop this 
problem.  Maybe it's worth trying another filter between the X100P and your 
other phones.

  Iain


--On Tuesday, February 24, 2004 11:00 am -0700 "Thomas M. Schaefer" 
<toms@xmission.com> wrote:
> Hi all, I have a strange problem. Whenever I plug in the base cord
> connected to the X100, my DSL service goes down. I DO have a Cisco filter
> (the one that comes with the product) installed.
>
> Has anyone else seen this problem?
>
> There was a similar entry in the archives, but it was without a filter.
>
> Thanks,
>
> Tom Schaefer
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>

My guess was the 100 presented too low an impedence to the line. So, I took
an answering machine that had a phone jack on it (pass-through). I plugged
the ans. machine into the filter and the 100 into the ans. machine.
Everything works now. I can also try a second filter.

Thanks,

Tom Schaefer