What is the "party line" port and what's
it used for? A search of the
cctalk archives didn't yield anything.
--
could it be a display unit for an information system? (airline arrivals or
similar). That would be display only, and may well display in many
locations. I suspect if that is the case, the party line will be RS422
rather than RS232, as 422 is designed for multi-drop and long distance.
Jim.