I believe the following may useful and/or interesting: 100BASE-CX (STP) is only spec'd for 25 meters (82 feet). (Same for 1000BASE-CX, 25 meters.)
100BASE-TX uses two pairs UTP, Cat5 or better, 100 meters. 1000BASE-T needs four pairs UTP, also Cat5 or better, 100 meters. 1000BASE-TX uses two pairs UTP but requires Cat6, 100 meters. Note that most gigabit stuff is 1000BASE-T. I believe the original plan was that two pairs would be cheaper than four but 1000BASE-T won out due to compatibility with legacy wiring, which pretty much is four pairs anyway. NealS _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
