Re: T1 short-haul vs. long-haul

Robert Boyle wrote:

You can travel up to 655 ft. with a T1 cable from the NTU which the phone company will drop at your site. According to the letter of the specs, you are supposed to use "T1 cable" two 22AWG pairs individually shielded to prevent cross-talk. In practice, we have extended DMarcs up to 200-300 feet with regular Cat 3/4/5/6 cable and have never had any problems or out of spec. cross-talk as a result.

Kentrox used to have a white paper regarding demarcation extensions. They indicated that regular Cat 3/5 cable could likely be used to 1000-2000 feet, and individually-shielded twisted pair cable could go 6000 feet. As noted above, crosstalk is normally the critical factor in the distance "game". pt