Dell Latitude D810 - Manual (Page 102)

Enabling the Infrared Sensor
1. Under the Onboard Devices category, press <Enter> to select the Fast IR setting, and press the right-arrow or left arrow key to change the setting to
a COM port.
2. Press <Enter> and then <Esc> to save the changes and exit the system setup program.
After you enable the infrared sensor, you can use it to establish a link to an infrared device. To set up and use an infrared device, see the infrared device
documentation and the
Windows Help and Support Center .
NOTE: The default setting is Off.