IEEE 1394 High Perormance Serial Bus, also known as Firewier, is a versatile, high-speed, and low-cost method of transferring digital data between personal computr peripherals and consumer electronics devices. IEEE 1394 can transport data at 100/200/400 Mbps.

• Digital interface - no need to convert digital data into analog and then digital again for processing, which will have a loss of data integrity.
• Small - thin serial cable will replace large and more expensive interfaces.
• Easy to use - no terminators, devices ID etc¡K
• Hot pluggable for plug and play applications
• Cheap - the high volum consumer market will achieve low-cost implementation.
• Daisy chain connection
  

1. Consumer electronics devices (up to 100 Mbps)

• Video game devices
• Connect conventional PC peripherals (e.g. fixed disk drives, printer & scanner)
• Home networks & PC peripheral component sharing.
• Second generation DVD drives.
• Third generation DTH (direct to home) satellite receivers.
• Cable modem.
• Digital audio tape (DAT) recorders.

2. Prosumer electronic components (up to 200 Mbps)

• High-speed keyboard synethesizer, sound modules and samplers.
• Digital camcorders and VCRs.
• Fixed and motorized digital video conferencing cameras.

3. Professional and industrial market (up to 400Mbps)

• Substitute for the 8-bit parallel bus of the IEEE 488 Standard Digital interface for Programmable Instrumentation.
• Support transmission of 10-bit uncompressed digital video and several simultaneous channels of 16-bit, 48kHz stereo digital audio.
• High definition (HD, 16:9) digital input TV set (221Mbps for 30 frames/sec, 640x480 pels & 24-bit color/pel)

Cable Plug Connector

The fully shielded connector will have six contacts. The contcat design creates a Hertzian stress (combination of cylindrical radius, normal force, base and surface material hardness) of 225,000 - 275,000 psi in the mating area. The connector plug termination can be made by crimp, insulation displacement (ICD), insulation piercing & soldering.

Cable

The cable consists of two twisted pairs (signal pair) & two power connectors. The signal pair carries the balanced differential data signal, while the power conductors carries the bus power (about 8~40 VDC).

The signal pair will have individual braid (60~65%) shield. The overall cable has a outer shield (90~95% braid copper wire over spiral wrap metallized polyester tape, with the metal to the outside)

Cable Assembly

The cable assembly consists of two identical plug connectors jointed by a cable (Maximum length is 4.5m). When a cable assembly plug is mated with a socket connector, there should be 1 mm (minimum) clearance between overmold on the assembly plug & the shield flange on the socket.

 

Wire Structure: