NOTE
Not all Bluetooth devices support authentication or encryption. You may have to turn
these options off when connecting to a device that does not authenticate users or
encrypt data.
Click Finish to confirm your changes.
Portable PC Issues 65
4
FIGURE 4.11 Configure the Bluetooth daemon here.
Configuring Infrared Interface (IrDA) Mode
Chances are good that your laptop uses either Bluetooth or Infrared Data Association
(IrDA) to communicate with other devices. IrDA??™s differences with Bluetooth are minimal,
but significant:
. In Bluetooth, the individual devices do not need to see each other directly.
. In Bluetooth, several devices can be connected in a network. However, the
maximum data rate is 720 Kilobits per second (in the current version 1.2). The next
version of Bluetooth is expected to improve that rate to more than 2 Megabits per
second.
. Theoretically, Bluetooth can even communicate through walls. In practice, however,
this depends on the properties of the wall and the device class. There are three
device classes with transmission ranges between 10 and 100 meters.
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