On an MS-DOS computer
If you are using an IBM PC or compatible running
MS-DOS, edit the AUTOEXEC.BAT file to include a line
that reads:
MODE LPTl:=COMn:
n stands for a number: 1, 2, 3 etc.
COMn must match the name of the serial port to which
the serial-to-parallel converter is connected. Usually it
will be COM2.
This line sends printer output to the COMn serial port.
Also add a line of the form
MODE COMn:baud,parity,data length, stopbits,p
to set up the COMn port to match the DIP switch set-
tings on the serial-to-parallel converter. For example,
MODE COM2:9600,N,8,l,p
will set up COM2 to run at 9600 baud, with no parity, a
data length of 8 bits, and 1 stop bit (an MS-DOS byte-
terminating convention). The ‘p’ indicates that the
printer will continually try to re-transmit data, should
an error occur.
Refer to your MS-DOS User’s Guide if you need further
information on the MODE command.
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