IEEE1394 is a common interface standard that allows interconnected communication between computers and peripheral equipment.It inherited the SCSI (small computer system interface) concept in the past, even faster Que Shibi previous Ultra Wide SCSI and IDE UltraDMA33 of more than 10 times the external serial bus (Bus) hardware. The IEEE1394 features: (1) IEEE1394 port external 63 peripherals (using a tree structure can be connected to up to 16 segments, each node can be connected to the number 63, and therefore the entire IEEE 1394 network can be linked to a total of 1024 peripherals); (2) with the Universal Serial Bus (USB) compared, IEEE1394 same with the use of the double convenience features and installation: It can plug and play (Plug-and-Play), can also be a computer startup or shutdown stateadd or remove equipment unit (Hot-Plugging); (3) IEEE1394 support point-to-point (Point-to-Point) and end-to-end transmission (Peer-to-Peer), provides power to the peripherals to make it without going through a computer and can be directly connected to each other. 2000 IEEE 1394a specification upgrade, the transmission speed of 400Mbps (per second 400Mb), and 2001 in the face of fierce competition USB2.0 innovation 1394b specifications per second transfer speeds of up to 800Mb, and future IEEE1394 transmission speeds will reach everyseconds 1.2Gbps or 3.2Gbps. For the effective use of the above specification plastic optical fiber or glass fiber optic cable can be stretched to the transmission distance of 50-100 meters. So rapidly the efficiency of the transmission speed, it is often applied in connection high density of signal transmission, the transmission quantity of peripheral devices.That is a large amount of signal transmission peripherals, through high-speed transmission interface to ensure the implementation of quality, therefore, IEEE1394 with support asynchronous transmission (Asynchronous; ensure the accuracy of the information), as well as real-time transmission (isochronous; ensure that the transmission instant) characteristics of Channels.Transfer a large number of audio and video information and connect the working status of the digital audio and video products such as personal computers, digital editing, as well as scanners, digital video recorder, digital camera, DVD player, DV camera interoperability are universal use IEEE1394 asthe transmission interface standard, therefore IEEE1394 been able to enjoy the praise of affinity (user-friendly), nothing more has become a common interface standard. IEEE (Institute of Electrical and Electronics Engineers) is the abbreviation of the World Institute of Electrical and Electronic Engineering, the main task is to develop common standards for the electrical and electronic industry. IEEE1394 iLink's the prototype first developed in Japan to develop later day coefficient bit products follows (SONY Digital DV products mostly have this connector, it is the so-called DV terminal), but it is not accepted by the IEEE, which can not become a common interface standard . The American Apple's launch in November 1987 similar rudiment FireWire, 1992 as the basis for the development of the 1394 IEEE confirm 1995, and then to become a common industry specifications.