Multiplexer setup with a MAC

Obtain a copy of  ZTerm (http://homepage.mac.com/dalverson/zterm/) and the PL2303 driver provided by Brookhouse (or go to <http://www.prolific.com.tw/eng/downloads.asp?ID=31> to get the latest Macintosh driver). Install the driver per Mac rules, plug in the mux USB cable, start ZTerm, configure ZTerm per general set up instructions, make sure ZTerm is the active window (application), press and hold the Escape key, then turn on the mux (no fiddling around finding the correct port to configure, the Mac does it all). From there on, it's the same as in the Hyperterminal examples.