Xerox 3270 User Manual

The settings can be downloaded as special commands from your
IBM system or from a PC  to the Centronics or RS 232 (in case of
serial connector) input port. The converter uses these commands for
its own internal setup.

Initially, the settings can be downloaded to the temporary memory
area (see Chapter 3. Manipulation of Temporary and Permanent
Memory Areas) of the converter, where they take immediate ef fect.
The settings in the RAM area may be saved permanently in the
permanent memory area, if specified by a special command. The
permanent memory area is read each time power is turned on to the
converter or when you give a special command.

The serial port can be configured as input or output.

SERIAL OUTPUT
For serial output, the FSL printer driver has to be used.
For details on this, please see doc. no. D62071.

SERIAL INPUT
For serial input, you can use both FSL and PCL printer drivers. For
details on serial input, please refer to relevant chapters in D62071
(FSL) and D62030 (PCL) for details.