User Manual

Chapt er 1
I nt roduct ion
INTRODUCTION TO BLUETOOTH
The term “Bluetooth” refers to a worldwide standard for the wireless exchange of data
between two devices.
In order to exchange data, two Bluetooth devices must establish a connection.
Before a connection is established, one device must request a connection with another.
The second device accepts (or rejects) the connection.
The originator of the request is known as the client.
The device that accepts (or rejects) the request is known as the server.
Many Bluetooth devices can act as both client and server.
A client Bluetooth device runs a software program that requests a connection to another
device as part of its normal operation. For example, the program may request a
connection to a remote computer, a printer, or a modem.
Becoming a Bluetooth client normally requires an action by the device operator, such as
an attempt to browse a remote computer, print a file, or dial out on a modem.
Every Bluetooth device that provides a service must be prepared to respond to a connection
request. Bluetooth software is always running in the background on the server, ready to
respond to connection requests.
INTRODUCTION TO THE WIRELESS BLUETOOTH USB
DONGLE
The Bluetooth USB Dongle is specifically designed to plug into an available USB port
connecting to a desktop or laptop. It is the best solution for quick and easy connection and
access to your Ethernet Local Area Network (LAN) and other shared resources without cables
or wires.
We provide both low power (class 2/3) and high power (class 1) Bluetooth USB Dongle. Each
Bluetooth Dongle is bundled with Widcomm Bluetooth Software. The significant difference
between the high power and low power is the transmission range. The transmission range of
class 1 (high power) is up to 50 meters; however, the class 2/3 (low power) is about 10-20
meters. You can choose a suitable Bluetooth USB Dongle depends on your working
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