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USB

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Revision as of 10:06, 23 November 2007 by Horemu (talk | contribs) (Explanation)
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USB = Universal Serial Bus

Explanation

USB-Master.jpg USB-Slave.jpg
USB master
(A-type)
USB slave
(B-type)

USB is a user friendly I/O-interface for connecting peripherals to your PC.
A distinction is made between

  • USB 1.1 (transfer rate 12 mbit/sec)
  • USB 2.0 (transfer rate 480 mbit/sec)

USB 2.0 devices are backward compatible (with slower transfer rate) with USB 1.1 devices.

An USB connection consists of a shielded cable and two unequal plugs: One for the master (A-type) and one for the client port (B-type).

On phones USB master ports are used to connect additional devices like keyboard or USB memory stick. USB slave ports are used to establish a connection to a PC to use First Party CTI.

Phones providing USB ports:

Erläuterung

USB-Master.jpg USB-Slave.jpg
USB Master
(Typ A)
USB Slave
(Typ B)

Der USB ist eine anwenderfreundliche I/O-Schnittstelle zum Anschluss diverser Peripheriegeräte an einen PC.
Man unterscheidet zwischen

  • USB 1.1 (Übertragsrate 12 mbit/sec)
  • USB 2.0 (Übertragsrate 480 mbit/sec)

USB 2.0-Geräte sind, mit langsamerer Übertragungsgeschwindigkeit, normalerweise abwärtskompatibel zu USB 1.1-Geräten.

See also / Siehe auch