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Appendix
Serial cable users
The USB-to-serial cable has four connectors:
• USB connector
• DB-9 serial connector
• Female PS/2 connector
• Male PS/2 connector
Do the following to connect your device to a serial port on your
computer using the USB-to-serial cable.
1. Plug the USB connector end of the cable into the USB port
on your device.
2. Plug the DB-9 serial connector end into a free serial (COM)
port on your desktop computer.
3. Disconnect the keyboard from your computer.
4. Plug the Male (A) PS/2 connector end into the keyboard
connector port on your computer.
5. Plug the Female (B) PS/2 connector end into the Male PS/2
connector end of your keyboard cable.
Keyboard
connector
port
Serial port
(B) Female PS/2 connector
on USB-to-serial port cable
DB-9 serial
connector
Device
USB connector
Keyboard
(A) Male PS/2
connector on
USB-to-serial
port cable
Male PS/2
connector on
keyboard cable