On 8 Aug 96 10:19pm, David Mohorn wrote to All:
 DM> Can someone please tell me what the correct IEEE wiring is for a
 DM> category-5 Ethernet cable?  I know it doesn't matter, as long
 DM> as you have all 4 pairs the same on both ends, but I am sure
 DM> there is a certain coloring scheme for each pin to achieve less
 DM> errors per twist.
 DM> I usually do:
 DM> 1-Orange
 DM> 2-Orange White
 DM> 3-Blue
 DM> 4-Blue White
 DM> 5-Green
 DM> 6-Green White
 DM> 7-Brown
 DM> 7-Brown White
If you're going to follow the above pattern then you need to make a
change.  The second pair needs to be split to use pins 3 and 6, not 3
and 4.  This is what you should be using:
1-Orange
2-Orange White
3-Blue
4-Green
5-Green White
6-Blue White
7-Brown
8-Brown White
Since pins 1,2,3 & 6 carry the signals you need, the modified wiring
diagrams I show above keeps the signals on matching pairs.  Your scheme
would pull the signals from one leg of two different pairs for pins 3
and 6.
 DM> Also--is there a certain coloring scheme for a crossover cable?
Simple reverse of pins.  3 & 6 become 1 and 2, 1 & 2 become 3 & 6.
George
... Calvin Coolidge looks as if he had been weaned on a pickle.
--- Via Silver Xpress V4.3P BT003
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