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1394 is the IEEE designation for the high performance serial bus. This serial bus defines both a backplane physical layer and a point-to-point cable-connected virtual bus. The cable version supports data rates of 100, 200 and 400 Mbits/s across the cable medium supported in the current standard. Both versions are totally compatible at the link layer and above. The interface standard defines transmission method, media and protocol. The primary application of the cable version is the integration of I/O connectivity at the back panel of Personal Computers using a low-cost, integrate, high-speed serial interface. The 1394 standard also provides new services such as realtime I/O and live connect/disconnect capability for external devices including disk drives, printers and hand-held peripherals such as scanners and cameras. |