Jonathan Katz wrote:
  So there isn't an RS-232 or similar off the back
and you can't just  
jack it into your Linux box?
I think it uses some kind of multidrop signalling rather than EIA-232.
Even if it uses EIA-232, it's still not going to be much use on a Linux
box, unless you write Linux software that knows how to talk to it.  It
is a block-mode terminal, not character mode.  It doesn't send one byte
over a serial port every time you hit a key, and it doesn't display a
character each time a byte comes in.  Trying to use it on a serial line
with a getty process would be an exercise in futility.