Tim Hatch

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A Simpler Loopback Cable 20 Oct, 2009

Earlier today I posted some info on a double-loopback cable I made earlier this year. If you relax the requirement that the ends be different vendors, it's possible to make a much simpler one.

This cable has the TX/RX cris-crossed, and the grounds connected. That's technically all that's required for something like this, all without custom circuitry. Note that on this picture, black is at the top of both cables.