I need to make a ethernet crossover cable to connect two devices together. Anyone know the process to make one from scratch?
Before you start, if one of the devices is Gbit-capable the send and receive lines are negotiated automatically and thus no crossover is needed.
OW O GW B BW G BrW Br
GW G OW B BW O BrW Br
In other words swap the orange/white with the green/white and the orange with the green on one end of the cable. Compare against a standard cable to make sure you have it right. Make sure you only unwravel as much of the cable ends as you need. Too much will cause crosstalk.
One time I made so many CAT5 patch cables my fingers started to bleed.