T1 from demarc to CSU/DSU - UTP okay?

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JoelKatz's Avatar (by Gravatar) posted on
August 6, 2009, 10:01 pm
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I need to run a T1 line from the smartjack to a CSU. The run is about 120
feet. I have lots of Category 5 UTP wire. Would it be okay to run the line
over a single Cat 5 UTC run? I can make sure the Tx and Rx are each on
their own pair, but if I have to use two separate pieces of cable, I might
as well track down individually shielded wire.

The run doesn't pass by anything really. There is one low-power 2.4GHz
video transmitter that it passes by and the only other cable that shares
that approximate path carry two ISDN BRI lines.

DS


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Dmitri(cabling-Design.com's Avatar (by Gravatar) posted on
August 8, 2009, 5:03 pm
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Re: T1 from demarc to CSU/DSU - UTP okay?


Dmitri(cabling-Design.com) had written this in response to
http://forums.cabling-design.com/cabling/T1-from-demarc-to-CSU-DSU-UTP-okay-4250-.htm
 :
JoelKatz wrote:


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I don't see any problem at all with 120 feet of CAT5 (presuming CAT5E
'cause that's pretty much all you can buy today) for a T1 extension. In
fact have used CAT5E for 500+ feet extensions in some extreme cases such
as large converted factory building with a demarc at one end of the
building and offices in the opposite one. Just be sure to follow your own
comment about keeping Tx and Rx on their own pairs.

That's the technical aspect you'll be dealing with. There is also an
organizational/business aspect: who's equipment is it going to be on the
extended end of that T? Depending on the service and its provider it may
very well be the provider's headache to insure the health of that T.
Depending on how lucrative is the service they are selling they may opt to
install fiber extenders and such on their own dime.

But, regardless of who pays for it, 120 feet of CAT5E for a T1 is not that
big of a deal. Should work every time.

-------------------------------------
Best Regards,
Dmitri Abaimov, RCDD
http://www.cabling-design.com/homecabling/
Home Cabling Guide, Cabling Forum, color codes, pinouts and other useful
resources for premises cabling users and pros


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