Using The Serial Port - Epson Progression Setup Manual

Using the Serial Port

If you have a serial printer, a modem, or other peripheral
device, you can connect it to the serial (RS-232C) port on the
back of the computer. The serial port uses a DB-9P connector,
so be sure you have a compatible cable.
To connect a serial device, insert the connector into the serial
port, as shown below.
Note
You need to ensure that the serial port is set up so it
functions properly. If you are using the port for a serial
printer, you need to redirect printer output to the serial port
instead of the parallel port. If you're using MS-DOS
can do this with the MODE or SETMODE commands. See
your MS-DOS manuals for instructions.
serial port
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