Sony Vaio PCG-C1F User Manual page 35

To use infrared communication with another computer
Align the infrared ports on the two computers so that they are in a direct
line.
When you transfer files directly from devices other than the internal hard disk drive, such as
a CD-ROM drive or hard disk drive on a network, set the System Suspend and System
Hibernation timers to off.
Check the Status tag of the Infrared Monitor in the Windows Control Panel to determine if
the infrared device is detected.
If the two devices are too far apart or too close together, data transfer may be interrupted or
there may be noise in the transmission.
Do not cover the infrared ports with your hand or any other objects.
Avoid direct sunlight, fluorescent light, or flashing incandescent light near the infrared
ports.
See the manual that came with your infrared communication device for more information
on installation and use.
The active area of infrared transmission extends about 1m (39 inches) with a radius of 15
degrees.
15°
Using Your Notebook Computer
Infrared port
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