On Wednesday 10 March 2004, ken at playersonly.com (Ken Gilmour) wrote:
>> both devices are happily operating at 100BaseT, whereas I thought that
>> more than 4 wires were required for 100BaseT.
>>Hmm... correct me if i'm wrong but i've always been under the impression
>that it uses one pair for half duplex and two pair for full duplex.
Consider yourself corrected :-) Two pairs are used for 100BaseT & 10BaseT. So
it is possible to run two connections over one run of Cat-5 cable, and as
somebody else pointed out, you can even buy little gadgets to do that and save
you rewiring sockets at each end.
I would suspect that maybe over longer cable runs this mightn't be as reliable
as a very reliable thing because of crosstalk, but that's really only
guessswork/gut feeling.
Niall
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