Specifications of Bluetooth

1. In the whole of the United States and even of Europe, the frequency band is 2.400 - 2.483.5 megahertz, with 79 channels of 1-MHz RF (frequency by radio). frequency band in Japan east from 2.472 to 2.497 megahertz with 23 channels of 1-MHz RF.

2. A channel of data of Bluetooth of hop 1.600 by chance periods a second between the 79 channels of RF.

3. Each channel of Bluetooth is divided into time slits, with each one which is 625 microseconds length.

4. A piconet of Bluetooth has a Master and until seven slaves. The Master will transmit in equal slits of time, whereas the slaves transmit in odd slits of time.

5. The data in a simple package can be up to 2.745 little in the length.

6. Currently, there are two types of transfer of data between the devices - SCO (connection synchronous directed) and ACL (without asynchronous connection).

7. In a piconet of Bluetooth, there can be until three bonds of SCO containing 64.000 bits a second with each one. To help to avoid the collision and synchronization the problems, the bonds of the SCO will employ held the slits installed by the Master.

8. A Master can support up to three bonds of SCO with or one, two, or even three slaves.

9. The slits not reserved for the bonds of SCO can be employed for bonds of ACL.

10 A simple Master and a Slavic can have a ACL bond.

11 The ACL is or Master with Slavic (not with the point) or announces to him with all the slaves.

12 The slaves of ACL will transmit only when it has asked by the Master. If the doesn’t principal make the request, the slaves of ACL that the won’t transmit something of the whole.

Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages.