DSL Gotcha

[Raymond Russell]

On 7/20/03 0:03, "Kurt Wall" <kwall at kurtwerks.com> wrote:

> Quoth Michael Hipp:
>> Hey, list,
>>> 
>>> I learned something interesting about DSL today. I was having lots
>>> or intermittency problems with my DSL connection. A call to tech
>>>> Kurt Wall wrote:
>> 
>> support later, and it was fixed. Immediately. The solution: make
>>> the RJ11 cable from the wall jack to the modem as short as possible.
>>> The Ethernet cable can be as long as the protocol supports, but the
>>> RJ11 cable needs to be very short, or the connection will be unstable.
>> 
>> I've never seen that problem, but it is no doubt due to the RJ11 cable
>> being untwisted. The uniform twisting of cat5 and even good old
>> telephone house wire gives it an inherent ability to reject noise. Has
>> to do with how the e-m fields cut through both conductors identically.
> 
> This is good information. I had no idea, but this is the sort of thing
> that, lacking a proper engineering education, is indistinguishable
> from magic. Thanks!
> 
>> And it's a good "trick" to remember for the future.
> 
> On its way to the SxS tips...
> 
> Kurt

I don?t have DSL any more but when I did my installer used CAT-5 cable and
put RJ11 connectors on it, this helped a lot.  I was far out from the CO so
I needed every little bit of help.