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huh?

If you are driving point-to-point, the typical parallel termination technique I described will work over long distances, particularly at 3 MHz and 15 nsec risetimes. Should be safe to do 30 feet with no bit-errors using low-loss cable. I designed a supercomputer communication system in the late 80's that did serial 3 Mbits/sec over 20 foot twisted-pair cables and this was parallel terminated using AC termination (resistor in series with capacitor at the receiver).


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