FB153BC User Guide
Version 1.0
1 1 What is Bluetooth?
PAGE 5 / 15
1 1 What is Bluetooth?
1.1 Features of Bluetooth
Objectives of Bluetooth : To Realize Wireless Communication for Short Distance with Low Power
Consumption, High Reliability, and Low Cost.
Frequency in Use: To Use ISM(Industrial, Scientific, Medical) Band which does not require any
permission to use.
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2.400 – 2.4835 GHz, 79 channels
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2.465 – 2.4835 GHz, 23 channels (in France)
Transmission Rate : 1Mbps ~ 3Mbps
Transmission Output : 1mW (10m, Class2), 100mW (100m Class1)
Network Configuration : Configured with Master and Slave relation. A Bluetooth unit shall allow
simultaneous connections up to 7 devices (in case of ACL).
Reliability : To Guarantee stable wireless communication even under severe noisy environment
through adopting the technique of FHSS (Frequency Hopping Spread Spectrum).
1.2 Operation of Bluetooth
<Feature 1-1 Bluetooth Operation>
Bluetooth operates based on the connection between “Master” and “Slave”.
Masters are simply supposed to do “Inquiry” and “Page”. Slaves are supposed to do “Inquiry Scan”
and “Page Scan”.
If a Master finds a Slave and so “inquiry” is successful, a Slave responds to the Master with its
information.
Interconnection between the Master and the Slave is achieved only if the information from the
Slave is corresponded with the Master, and the Slave sends data to the Master.
