Communications 11
Parallel Printer Port
This port, labeled “PAR,” is designed for connection to a parallel printer, which has a
Centronics interface with a 25-pin D-shell female connector. This port, unlike the
others, is a uni-directional device—it only serves to output data to the printer and
cannot receive data. The pins and signals supported are shown below:
Parallel Port Pin Assignments
* These signals are held high, in an inactive state.
If you have opted to use a parallel printer, but it is not connected, an error message
will appear on the status line when any PRINT operation is done. To clear the
message, press Ctrl-Shift-Tab.