High Performance Serial Bus
<bus, standard> (Or "IEEE 1394", "FireWire", "I-Link") A 1995
Macintosh/IBM PC serial bus interface standard offering high-speed
communications and isochronous real-time data services.
1394 can transfer data between a computer and its peripherals at 100, 200, or
400 Mbps, with a planed increase to 2 Gbps. Cable length is limited to 4.5 m but
up to 16 cables can be daisy-chained yielding a total length of 72 m.
It can daisy-chain together up to 63 peripherals in a tree-like structure (as
opposed to SCSI's linear structure). It allows peer-to-peer device
communication, such as communication between a scanner and a printer, to take
place without using system memory or the CPU. It is designed to support
plug-and-play and hot swapping. Its six-wire cable is not only more convenient
than SCSI cables but can supply up to 60 watts of power, allowing
low-consumption devices to operate without a separate power cord.
Some expensive camcorders have included this bus since Autumn 1995. It is
expected to be used to carry SCSI, with possible application to home automation
using repeaters.
See also Universal Serial Bus, FC-AL.
(2000-09-03)
Nearby terms:
High Performance Fortran « High Performance Parallel
Interface « High Performance Routing « High
Performance Serial Bus » High Speed Circuit
Switched Data » High Speed Connect » High-speed Net
Connect
|
