back in the days without twisted pair it worked, at least
and afaik in exactly the same way as TP. I am not sure I understand your question completely. You will need an ethernet board and if it has not got a coax connector it would be cheaper to buy a TP cable than some sort of adaptor.
Again: I am not sure what you are asking exactly, so feel free to enlighten me, if I am not making any sense
Sincerely,
-Kenneth Straarup.
