Key Learning Points Bluetooth
Bluetooth is easily the best of wireless handheld. When it comes to learning, Bluetooth can be quite complicated. To help you, you'll find the key learning points of Bluetooth below:
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http://stores.channeladvisor.com/socaltel/Items/BLUEV510?
1. Bluetooth is an energy efficient communication protocol low-up is ideal for interdevice communications.
2. Unlike infrared, Bluetooth does not require line of sight.
3. Depending implementation, Bluetooth can have a range up to 100 meters.
4. The specification of Bluetooth consists of a base document and a document profile Core Foundation.
5. The protocol stack for Bluetooth consists of core protocols, cable protocols, and even adapted protocols.
6. The transmitter operates around the frequency band 2.4 GHz
7. The data channel will change frequency, or hops, 1,600 times per second, of the 79 assigned channels in the ISM band.
8. Bluetooth uses a spread spectrum frequency hopping RF characteristic to ensure that independent networking works when other devices are within range.
9. A piconet is formed when one or more devices open a communication channel.
10. A piconet can have one master and seven slaves.
11. Interdevice communication is based on the concepts of channels.
12. All Bluetooth devices are capable of transmitting voice.
13. The channel has a total capacity of 1 MB per second.
14. There are two types of channels with Bluetooth – SCO (Synchronous oriented connection) and ACL (Asynchronous offline).
15. SCO channels are oriented to time, and therefore mainly used for transferring time-critical data such as voice.
16. ACL channels are normally used for data communication.
17. The data contained in a package can be up to 2745 bits long.
18. In a single piconet, there can be up to three SCO links containing 64,000 bits per second each.
19. To avoid collision and timing problems, SCO links are reserved spaces that are created by the teacher.
20. Teachers can support up to three SCO links with one, two or three slaves.
21. The slots not reserved for SCO links can be used as ACL links.
22. The LMP (Link Management Protocol) is responsible for liaison security level, error correction, and the establishment of communication links.
23. The LMP packets will have priority over user packets that originate and how L2CAP layer.
24. The L2CAP layer will ensure an acceptable quality of service.
25. No more than one ACL link can exist at the L2CAP layer.
Go here and see the latest Bluetooth Headset:
http://stores.channeladvisor.com/socaltel/Items/BLUEV510?
About the Author
Mark is the Chief Sales Officer of SCT Product Sales.
Mark is giving away FREE articles on Bluetooth Technology.
Visit: http://www.simplyusedphones.com/articles.html
Email: myoung@socaltel.com.
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