On Wed, 10 Mar 2004 07:57:11 GMT
Ken Gilmour <ken at playersonly.com> wrote:
> Hiya Boris
>> On Wed, 10 Mar 2004 07:46:57 +0000 (GMT), ilug at linux-is-groovy.co.uk> wrote:
> > both devices are happily operating at 100BaseT, whereas I thought
> > that more than 4 wires were required for 100BaseT.
Nope - 10baseT & 100baseT use 2 pairs (4 wires).
1000baseT uses all 4 pairs ( 8 wires )
>> 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
All the current 802.blah standards are freely downloadable
Section 14.1.2 says
188.8.131.52 - Twisted pair link: A twisted-pair link segment and its two attached MAUs
184.108.40.206 - Twisted pair segment: Two simplex link segments for connecting two MAUs
If you read the spec you'll see how it handles half & full duplex links.
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