Address (BDA) loaded into its radio module when manu- factured.
A Typical Bluetooth Connection Sequence
In this simplified sequence “Joe’s Terminal” is a Bluetooth ready hand held terminal running an applica- tion that needs access to a printer.
1.Joe’s Terminal performs a search of its “piconet” (a Device Inquiry) and determines that there are four Blue- tooth devices in the vicinity.
2.Joe’s Terminal queries each of the four nearby de- vices to determine which services they provide (a Service Discovery). The Bluetooth enabled Cameo “Sandy’s Printer” offers the printing service.
3.Joe’s Terminal sends a print connection request to Sandy’s Printer.
4.Sandy’s Printer evaluates the request and deter- mines that Joe’s Terminal is permitted to use the print service, but only if the correct password is submitted.
5.Sandy’s Printer queries Joe’s Terminal for the pass- word (Authentication).
6.Joe’s Terminal returns the correct password and the print connection is established.
7.After Joe’s Terminal is finished printing it disconnects with Sandy’s Printer. (Some Bluetooth services discon- nect automatically, others must be closed manually.)
There are several layers of security in the Bluetooth system, so this sequence may not be a completely accu- rate representation of how your printer may function in a Bluetooth environment. For the most part, communica- tions using the Bluetooth protocol are initiated and pro- cessed without any operator intervention, much like the IrDA system described previously.
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