1394", "FireWire", "I-Link") A 1995 Macintosh
serial bus interface standard offering high-speed communications and isochronous real-time
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
See also Universal Serial Bus