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Officially the IEEE 1394 High Performance Serial Bus (HPSB), FireWire is a high-speed interface developed and promoted mostly by Apple for video transmission. Introduced in 2000, FireWire was added to camcorders and a variety of A/V equipment. Even early iPods could connect via FireWire. However, on modern camcorders, FireWire was replaced with USB, HDMI and other video outputs.

FireWire 400 and 800
FireWire 400 was limited to a distance of 4.5 meters. In 2003, FireWire 800 increased the range to 100 meters and doubled the transfer rate. FireWire supported 63 devices, real-time data transfer, hot swapping and simultaneous multiple speeds. The faster 1600 and 3200 versions never got into production. See PC data buses.


  FW400     400 Mbps

  1394b - 100 METER CABLE LENGTH

  FW800     800 Mbps
  FW1600   1600 Mbps
  FW3200   3200 Mbps

FireWire Sockets and Compatibility
FW800 was backward compatible with FW400. One end of a "bilingual cable" had an FW800 plug, while the other end was FW400. Sony's i.Link was a miniaturized socket that connected to cables with i.Link, FW400 or FW800 at the other end.

FireWire 400 and 800 Sockets
The two FireWire sockets are easily identified.

Dual Mode FW/USB
This earlier external hard drive connected to the computer via FireWire or USB, whichever cable was plugged in.
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References in periodicals archive ?
There is increasing attention being paid to 1394 Automotive for in-vehicle multimedia networking, and it is expected to become common in the automotive market.
Standard features include three USB 2.0 ports, an IEEE 1394 port, one Express Card slot and an RS232 serial port.
TELECOMWORLDWIRE-30 October 2008-TI introduces two new 1394 devices(C)1994-2008 M2 COMMUNICATIONS LTD http://www.m2.com
Worcestershire's county museum, education and outreach Officer Sue Pope said: "It is Mid-November in the year 1394. Henry, Lord Bishop of Worcester has assembled great lords and dignitaries at his palace of Hartlebury for the feast of St Edmund.
This month and next stay for a week in a cottage at Trenwith sleeping four for pounds 225 through Cornish Collection (0845 365 1394, www.cornishcollection.co.uk).
1394) serves as a lens through which Caferro (history, Vanderbilt U.) explores medieval mercenaries and the wars they fought.
Based on Intel's 945g chipset, users can also select from a wide choice of optical drives, SATA 11-300 hard drives, and IEEE 1394 ports.
1394 Productions, Inc., a South Florida-based film/television production and marketing company, said April 4 it has begun production on a marketing video and multimedia DVD in the Dominican Republic as part of the country's efforts to attract filmmakers and television producers from around the world to their shores:
The case also has a built-in washable air filter and convenient front-mounted USB 2.0, audio, IEEE 1394 and FireWire ports.--Antec www.rsleads.com/510cn-321