Re: OT: welcome back

[owens@netptc.net]

>
>
>
>---- Original Message ----
>From: ac@acampbell.org.uk
>To: debian-user@lists.debian.org
>Subject: Re: OT: welcome back
>Date: Fri, 17 Oct 2008 16:59:24 +0100
>
>>On 17 Oct 2008, owens@netptc.net wrote:
>>> DSL normally is sent as a number of frequency bands called bins. 
>The
>>> spectrum ranges from 0 to about 1MHz.  The DSL filter is used to
>>> separate the bottom bin which is used for POTS (plain old
>telephone
>>> service).  In the home the filter is usually inserted in series
>with
>>> any line that may "belch" from the higher frequencies (such as a
>FAX).
>>> Larry
>>
>>Perhaps you can answer something I've wondered about. Is it
>necessary to
>>use a filter on a DSL socket if no ordinary phone is to be plugged
>in? It
>>doesn't seem to make any difference if you don't use one but perhaps
>>there is some more subtle effect.
>>
>>Anthony
>>
>>-- 
>>Anthony Campbell - ac@acampbell.org.uk 
>>Microsoft-free zone - Using Debian GNU/Linux
>>http://www.acampbell.org.uk (blog, book reviews, 
>>and sceptical articles)

Anthony et al
The DSL filter merely passes the POTS and blocks the DSL.  It's
passive.  It is not needed on any line that has nothing on it.
Larry
>>
>>
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