Operation Manual

How BlueFRITZ! USB Works
44 BlueFRITZ! USB – 5 How BlueFRITZ! USB Works
5 How BlueFRITZ! USB Works
This chapter presents basic knowledge on BlueFRITZ! USB
and Bluetooth technology.
5.1 BlueFRITZ! USB: General Remarks
BlueFRITZ! USB is a controller for the USB port for use in Win-
dows operating systems. BlueFRITZ! USB supports all com-
mon Bluetooth profiles, allowing connections to all kinds of
Bluetooth devices. BlueFRITZ! USB provides wireless access
to ADSL and ISDN through connections to an access point.
BlueFRITZ! USB supports the connection of up to eight Blue-
tooth devices in a wireless network. These features and the
convenient BlueFRITZ! control software make BlueFRITZ! USB
a genuine multimedia hub.
5.2 Bluetooth: The Technology
Bluetooth is a standardized universal procedure for the wire-
less transmission of speech and data. It allows notebooks,
mobile phones, headsets, digital cameras and telephones to
be connected to each other and to access points.
Every Bluetooth device has its own 48-bit address to ensure
clear identification. The power usage of Bluetooth devices
during a connection is so low that Bluetooth can also be
used in battery-powered devices with only a slight loss of op-
erating time.
Bluetooth devices connected with each other achieve trans-
mission with a throughput rate of one megabit per second.
Bluetooth connections have either a net data transmission
rate of 723.2 Kbit/s in the user direction and 57.6 in the op-
posite direction, or with synthetic transmission, 432.6 per di-
rection, or a total of 865.2 Kbit/s.
A number of Bluetooth profiles like PAN also allow the nego-
tiation of compression methods, making effective data
throughput possible in the Mbit/s range.
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