[ale] 1 RJ45 == 2 RJ45

Dan Newcombe Newcombe at mordor.clayton.edu
Tue Mar 18 12:12:25 EST 2003


On Tue, 18 Mar 2003, Christopher Fowler wrote:
> A while back I was looking for a way to take one RJ45 network port and
> make 2 out of it.  RadioShack has a device that does it for $20.  Below
> is the schematics for the device.  Right now purchasing is far cheaper
> than building.

Cat5 has 8 wires, you need 4 of them for ethernet.

IN THEORY, just split it at the jack and wire it up correct on both ends.

Of course, this is probably not spec, may lead to interference, slower
speeds, fire, famine, dogs and cats living together, UN resolutions or who
knows what :)
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