LAN and Telecom Cabling CAT 3 with POTS drop?

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Subject Author Date
CAT 3 with POTS drop? darknesslite 01-13-05
---> Re: CAT 3 with POTS drop? Dmitri(Cabling-...01-14-05
Posted by on January 13, 2005, 4:42 pm
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Is there any real advantage of using cat 3 for inside wiring for a DSL
installation when the drop to the residence is only a POTS line? The
baud rate would be limited by the drop, I would imagine, but would the
added CAT 3 (or better) make real difference with signal quality?
Underground drops aren't readily replaced by phone companies around
here.

Thanks for replies!
Greg



Posted by jtodd5 dot 1 on January 13, 2005, 7:52 pm
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darknesslite@hotmail.com wrote:
> Is there any real advantage of using cat 3 for inside wiring for a DSL
> installation when the drop to the residence is only a POTS line? The
> baud rate would be limited by the drop, I would imagine, but would the
> added CAT 3 (or better) make real difference with signal quality?
> Underground drops aren't readily replaced by phone companies around
> here.
>
> Thanks for replies!
> Greg
>
TIA 570B recommends a minimum of Cat3 for any residential installation.
When I relocated mine, I used Cat5e just for the peace of mind knowing that
the little performance gain was enough. Plus I had the cable on hand.
I'm sure that there are thousands upon thousands of people using IW for
their DSL without problems. It's a judgment call.


Posted by Dmitri(Cabling-Design.com on January 14, 2005, 4:59 am
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darknesslite@hotmail.com wrote:


> Is there any real advantage of using cat 3 for inside wiring for a DSL
> installation when the drop to the residence is only a POTS line? The
> baud rate would be limited by the drop, I would imagine, but would the
> added CAT 3 (or better) make real difference with signal quality?
> Underground drops aren't readily replaced by phone companies around
> here.

> Thanks for replies!
> Greg

Skip CAT3. Use at least CAT5E for ALL your wiring, voice and data. This
way you'll take advantage of the higher throughput if you re-allocate a
voice drop and make it a data drop in the future. True, it will not
improve your DSL, but in reality you should not even distribute your DSL
throughout the house: you should terminate it on a DSL modem which will be
sitting next to your patch panel.


--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
Cabling Forum, color codes, pinouts and other useful resources for
premises cabling users and pros
http://www.cabling-design.com/homecabling
Residential Cabling Guide
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Posted by James Knott on January 14, 2005, 8:38 pm
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Dmitri(Cabling-Design.com wrote:

> True, it will not
> improve your DSL, but in reality you should not even distribute your DSL
> throughout the house: you should terminate it on a DSL modem which will be
> sitting next to your patch panel.

I agree. I hate seeing those filters, scattered around someone's home.
Split the signals near the entrance and send them over their own pairs or
cables. A good choice for DSL, would be the 3rd pair in a 3 pair cable, as
most phones won't use that pair.




Posted by James Knott on January 14, 2005, 8:35 pm
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darknesslite@hotmail.com wrote:

> Is there any real advantage of using cat 3 for inside wiring for a DSL
> installation when the drop to the residence is only a POTS line? The
> baud rate would be limited by the drop, I would imagine, but would the
> added CAT 3 (or better) make real difference with signal quality?
> Underground drops aren't readily replaced by phone companies around
> here.

Cat 3 cable is better than most of that, which the DSL signal passes over.
It won't do much either way. However, if you're running new cable, go with
Cat 5 or better, so that it'd be suitable for network use.



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