I did a bit of searching and reading on the web and found several terminal servers that sound nice (BlackBox, Moxa, Digi, etc). The simplest type for easy integration are the ones that map their serial ports to device files on the unix machine over the ethernet. All of the models that I saw that supported doing this listed the versions of unix they worked with. Some mentioned Linux, but only x86 based. I'm guessing this means you don't get their source code so you can't port it to the empeg.

Does anyone know of a termserv that can be used this way with the empeg? It would be a great way of connecting several serial devices (Stalk, OBDII, GPS, etc) all at the same time.