Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com> You should maybe use Twin-Ax cable / connectors. Like standard coax cable, but there are two conductors. Good for differential signals. The connectors look like BNC, but have two pins (male and female inside them) The Captain