> The last round of "rs232 on rj45" pinouts developed at cisco had exactly > this feature. You could plug one end of a (flipped) rj45 flat cable into > one jack and the other end into another jack, and the right wires would be > connected so that everything (data, hw flow control, modem control) worked > right. In addition, the "important" wires were in the middle, so you could > use as small as 4-wire cable for a 3-signal circuit. I thought it was a > great idea. > > It generated quite a bit of complaint and confusion however... > > 1) Using "standard" wiring schemes, it apparent Hmmm the engineer who came up with our RJ-45 universal layout went to work for Cisco (about 6 years ago).