FireWire


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firewire

[′fir‚wīr]
(computer science)

FireWire

FireWire

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.

FIREWIRE VERSION TRANSFER RATES1394a - 4.5 METER CABLE LENGTH

  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.







Easy to Tell
FireWire sockets were easily distinguished from their USB counterparts.







Dual Mode FW/USB
This external hard drive connected to the computer via FireWire or USB, whichever cable was plugged in.
References in periodicals archive ?
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(www.qps-inc.com) has added a new Que!Fire CD-RW drive to its line of FireWire products.
Imation recently shipped a FireWire model for use in Macintosh environments.
Pointedly, given the recent fuss over Apple Computer Inc's 1394 FireWire high-speed serial interface, the core developer companies say they don't intend to charge royalties for essential patents.
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