At 04:25 PM 12/11/98 -0500, you wrote: >Actually, only 4 wires are used.Ê A typical utp cat ethernet cable has >twisted pairs on pins 1&2, 3&6, 4&5, and 7&8.Ê 10BaseT and 10oBaseTX only >use pairs 1&2 and 3&6. >Ê Maybe someone could answer a nagging question that I have: Why does it need TWO pairs? Thinnet (10-Base-5) obviously runs on coax, which has only two conductors, or one pair. I don't see whay they couldn't have combined xmit and recv on one pair, considering that it can't do full fuplex anyway, can it? Thanks, Sean +-------------------------------+ | Sean Breheny | | Amateur Radio Callsign: KA3YXM| | Electrical Engineering Student| +-------------------------------+ Save lives, please look at http://www.all.org Personal page: http://www.people.cornell.edu/pages/shb7 mailto:shb7@cornell.edu Phone(USA): (607) 253-0315 ICQ #: 3329174