Universal Serial Bus USB

1
USB 2 FireWire
2
(No Transcript)
3
(No Transcript)
4
Universal Serial Bus USB

• Instant connection of external devices
• No adapter cards needed
• Mouse, joysticks, thumbnail drives
• PC standard
• 1.5 - 12 Megabits

5
USB 2

• 40 x faster USB 1.1
• 480 Mbps
• Ideal for
• External hard drives
• CD-RWs
• DVD-r
• Card adapters

6
(No Transcript)
7
Firewire 400 / 800

• 400 megabits /sec
• Firewire/1394
• Ideal for
• Digitial video
• High speed storage devices
• Scanners
• CD-RW drives

8
How Does FireWire Work

• IEEE-1394
• Very complex serial bus protocol
• Standard cables and connectors
• I/O connectors gone
• FireWire cabling is similar to that of 10BaseT
  Ethernet
• Uses a fairness arbitration approach
• Ensure all information is transmitted using the
  bus
• Layered transport system

9
How Does FireWire Work

• Three layers
• Physical, Link, Transaction
• Physical
• Provides the signals required by the bus
• Link
• Takes the raw data from the physical layer
• Formats it into recognizable 1394 packets
• Transaction
• Takes the packets presents them into the
  application
• Remainder of the transaction functions are
  performed in software

10
FireWire

• Supports up to 63 devices on a single bus
• Instandlt connect devices w/o turning off other
  machines
• Ability to stream A/V data in realtime
• Originally developed by Apple
• Gone from 400 -800 Mbps
• Products come with FireWire connections

11
(No Transcript)
12
USB 2 FireWire
13
(No Transcript)
14
4 - 6 pin
15
6 - 6 pin
16
(No Transcript)
17
BJ
18
3 FireWire card
19
(No Transcript)
20
4 - 4 pin
21
USB 2 Vs FireWire

• USB 2 is faster then FireWire 400
• USB card or Motherboard
• If not than it runs at 1.1
• Backward compatible w 1.1
• Thumb drives 2,0
• Cables
• USB 2 is faster then FireWire 800
• 800 faster
• Most cameras are FireWire connection 4 pin

22
USB 2 FireWire