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copper to T1 equipement 4

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toolman18

Technical User
Aug 5, 2004
109
US
Is there someway I could run analog lines using T1 or similar 2 Pair curcuit equipement to an off premise location now using old copper house cable? A few vacant strands of fiber are available if thats an option. The off premise house cable is 50 pair, full, with a half dozen bad pairs. thanx, anyone?
 
Depending upon length and condition you could use 2 pairs out of the fifty for T1. T1 repeaters and NIUs are still available for copper T1. If you use the copper pairs, they CAN NOT be in the same binder group. Otherwise you will have crosstalk problems. You could also use HDSL T1 equipment to do the same thing. It doesn't have the crosstalk problem with ajacent pairs and might cost less.

You mentioned fiber optics are available. There are some fiber to T1 modules on the market, but the company escapes me at the moment. If you have any data needs, you could integrate all of this. There is alot to choose from depending how much you want to spend and what you want to do.

Hope this helps!

....JIM....
 
Hi Jim, looks like HDSL T1 would be the best option. Thanks a bunch, I'll check into it.
 
Jim, Do you know if HDSL equipement can be purchased privately? The source of the analog lines I mentioned is from a PBX to an off premise location using customer owned cable. The only equipement I could find was available through a local carrier or similar company. Thanks.
 
Hi toolman18,

The following companies manufacture HDSL T1 equipment: Adtran, ADC and Westell. There may be others, but these are the main ones. You can probably buy direct, but Walker & Associates ( and Telmar Network Technology ( are good sources. Telmar is secondary market and has an excellent waranty program. Good source for channel banks, etc. also. The manufactures' have engineering support people and I have talked to them in the past. If you have questions about specific modules, talk to them and get a copy of the practice for the item(s) so you can get some knowledge about it or see what they recommend for the application at hand.

Hope this helps!

....JIM....
 
Cisco makes a router that uses a point to point T1 between them, and allows you to plug in cards at either end to accept a single line station at one end and pop out as a "CO" line at the other end. Carded corectly, you could have half your channels going one way, and the other half going the other way.
 
What type of PBX? An easy way would be to use a T-1 card in the PBX with 24 DS1FD analog stations built on it. cross connect the 2 pair to the copper. On the far end add an adtran tsu600 configured with 24 FXS stations to run your 24 phones. If you don't want/have a t1 card for the PBX, you could also just use a TSU600 on each end to go "24POTS to T-1 to 24POTS".


-CL
 
we extend demarcs on T-1 frequently with a 3 or 4 pair cat-3 cable and always have good results. Never more than a hundred feet or so but no difficulties so far.
 
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