What's the Advantage of FireWire 800 Over 400-Firewire ExpressCard Adapter?

Nov. 9, 2009 - PRLog -- FireWire (FireWire) connection is based on technology developed by Apple Computer Inc. has developed and evolved based on a high-speed I / O technology, which can connect peripheral devices and computer. The technology in 1995 and was formally accepted as IEEE 1394 industry standard (FireWire 400). With its powerful transmission performance - can transmit audio, video, time code, and even can be used to control the characteristics of the machine, FireWire has become the digital audio and video equipment, external hardware, and other peripheral products ideal for high-speed interface. FireWire technology, popular in the market, Firewire Express Card Adapter is also constantly in itself to a higher stage of development-FireWire 800 (has been accepted as IEEE 1394B standard) the emergence of its transmission speed, distance and other performance to a new level.  Read More firewire 400 adapter information at:
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FireWire 800 than its predecessor with a faster FireWire 400 transfer speeds, higher effective bandwidth and longer transmission distance, as well as a wide range of advanced features such as backward compatibility. All of which make it a high-speed storage and large bandwidth requirements of video and graphics applications, an ideal choice. Its data transmission speeds of 800Mb / s, is the FireWire 400 2 times. This is mainly because of its use with the Gigabit Ethernet and Fiber Channel, the same efficient encoding architecture. In fact, the adoption of this encoding architecture, so that the transmission speed of FireWire 800 can reach a theoretical maximum 3200Mb / s, can meet large data file transfers and most demanding video applications (such as dealing with uncompressed HD video or multiple SD video stream) the stringent requirements. FireWire 400 cable to transfer data by the maximum distance is 4.5m. The FireWire 800 to use the professional glass fiber, the longest transmission distance reached 100m. FireWire 800 allows a variety of connection types of speed / distance:
 Wire type (Mb / s) 100 200 400 800 1600 3200
9-pin shielded twisted-pair copper wire (m) 4.5 4.5 4.5 4.5 4.5 4.5
CAT-5 shielded twisted-pair copper wire for the
(Standard Ethernet connection) (m) 100 - - - - --
Step refractive index plastic optical fiber (m) 50 50 - - - --
Hard polymer-clad plastic optical fiber (m) 100 100 - - - --
Glass fiber (m) 100 100 100 100 100 100  
Supports hot-swappable FireWire 800 peripherals can be realized plug and play. User removed or added to a FireWire device is not required to shut down the computer, but also without having to install the expresscard firewire card, assign ID numbers, or to connect the terminal connector. Users can connect a simple chain of several devices, may also increase the hub, a FireWire bus at a maximum of 63 devices attached. Got more details about 3 port usb/firewire expresscard adapter at:http://www.espow.com/wholesale-usb2-0-ieee-1394-firewire-...

FireWire 800’s high-speed and longer transmission distances make it more efficient. First, it uses an efficient arbiter mechanism; Second, it uses 8B10B coding (with Gigabit Ethernet and Fiber Channel using the same), reducing the signal distortion and increases throughput.  
FireWire 800 offers two transmission modes: pure β model (1394b) and backward compatible with the traditional model (FireWire 400 compatible equipment). 6-pin FireWire 400 devices, or 4-pin connectors, while FireWire 800 devices use 9-pin connector. Thus, the current FireWire 400 devices can connect directly into the FireWire 800 port.  
FireWire 800 can ensure real-time transmission of data, which does not allow for the delay or confusion in the frame transmission of audio and video streaming media applications is essential. FireWire data transfer between nodes is divided into two types of synchronous and asynchronous. USB/Firewire Expresscard Adapter can be for one or more simultaneous channels to retain 80% of the bandwidth, making real-time data transfer applications require the perfect choice.  
FireWire 800 and FireWire 400, as a powerful transmission power (up to 45W, maximum current 1.5A, maximum voltage 30V). This means that many devices do not need the power cord and adapter can be transmitted through the FireWire cable. Such as Apple's iPod music players will only use FireWire as the sole data transmission and power connections. In addition, FireWire Expresscard Adapter also provides”active” power management mechanisms - when the only really need to use the power.

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