Adding Options 5-75
1. Turn off and unplug the system unit and any external
option connected to the system unit.
2. Make sure that any power to your RS-232C device is off
and the power cable is unplugged.
3. Connect your RS-232C cable to one of the system’s
serial ports and to the device. Secure the cable with the
screws provided.
Connecting an RS-232C cable to the desktop