100 IrDA Lite Plus
MX3 Reference Guide E-EQ-MX3RG-J-ARC
File Transfer Using RS-232 Ports
Note: The MX3 and the external computer must be running the same communication software.
The MX3’s RS-232 endcap is COM1 or COM2. The RS-232 port on a PC may be COM1 or
COM2.
1. If necessary, disable (REM out) the IrDA protocol driver (IRPLUS.EXE) in the
MX3 CONFIG.SYS file.
2. Connect the appropriate serial cable to the MX3’s RS-232 endcap port and the serial
port on the external computer.
3. Begin running the communications software on the receiving unit. Set up the
software to receive data.
4. Begin running the communications software on the sending unit. Set up the software
to send data.
5. Press the appropriate keys on the MX3 to transmit the file to the external computer
or press the appropriate keys on the computer to transmit the file to the MX3.
Send MX3 File to a Printer
Perform the steps in “Quick Start” on the MX3. This will power up the MX3, edit the
CONFIG.SYS files, the AUTOEXEC.BAT files, load the IrDA Lite Plus file and establish the
COM port / baud rate to use for printing.
Note: Load the DOS file PRINT.EXE into the DOS subdirectory of the MX3.
When the DOS prompt (e.g. C:\>) appears, you are ready to begin.
1. Load the file to be printed into a subdirectory on the MX3.
2. Face the infrared ports on the MX3 and the printer (e.g. O’Neill MicroFlash) toward each
other, and place them approximately 3 feet apart. Offset the optical centerline of the two
devices 15 degrees. The MX3’s IR operating envelope has a distance range of 2 cm (.79
inches) to 1 meter (3.2 feet) with a viewing angle of 30 degrees.
3. Using the file name of the file to be printed (prntfile), type the following, at the DOS
prompt, on the MX3:
copy prntfile Press [Enter]
4. Press [Enter] again to accept the default device (PRN).
The file is sent through the IR port of the MX3 and is printed at the printer.
