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Ports, connectors, and cables

Ports, connectors, and cables. Unit objectives Identify and connect serial and parallel ports, cables, and connectors Identify and connect PS/2 ports, cables, and connectors Identify and connect USB ports, cables, and connectors Identify and connect FireWire ports, cables, and connectors

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Ports, connectors, and cables

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  1. Ports, connectors, and cables Unit objectives • Identify and connect serial and parallel ports, cables, and connectors • Identify and connect PS/2 ports, cables, and connectors • Identify and connect USB ports, cables, and connectors • Identify and connect FireWire ports, cables, and connectors • Identify and connect infrared and Bluetooth wireless ports • Identify and connect multimedia ports • Identify the symptoms, probable causes, and potential solutions to port, cable, and connector related problems

  2. Topic A • Topic A: Serial and parallel ports, cables, and connectors • Topic B: Keyboards, mice, and pointing devices • Topic C: USB ports, cables, and connectors • Topic D: FireWire ports, cables, and connectors • Topic E: Infrared and Bluetooth wireless ports • Topic F: Multimedia ports, cables, and connectors • Topic G: Port, cable, and connector troubleshooting

  3. Serial transmission

  4. Parallel transmission

  5. Serial port resources

  6. Serial port characteristics • Port speed • Data bits • Start/stop bits • Parity • Flow control

  7. Male and female connectors Male Female

  8. Serial connectors Pin 6 Pin 9 Pin 5 Pin 1

  9. Serial cables • Multiple conductors • Send, receive, power, ground, etc. • Straight-through cable • Pin 1 goes to pin 1 • Pin 2 goes to pin 2 • Null modem cable • Pins crossed and connected to simulate modem

  10. Pin numbers

  11. 9-pin null modem connections

  12. 25-pin null modem connections

  13. Activity A-1 Examining serial ports, cables, and connectors

  14. Parallel ports • Parallel transmissions • Often used for printers • LPT ports • LPT1 • LPT2 • Additional ports through expansion adapters • More modern PCs use USB

  15. Parallel port resources

  16. Port types • “Normal” or “Default” (unidirectional) • Bidirectional versions • Standard (SPP) • Enhanced (EPP) • Extended capabilities port (ECP) • Communications techniques • Centronics

  17. Female 25-pin parallel port Parallel port

  18. Centronics connectors

  19. Activity A-2 Examining parallel ports, cables, and connectors

  20. Topic B • Topic A: Serial and parallel ports, cables, and connectors • Topic B: Keyboards, mice, and pointing devices • Topic C: USB ports, cables, and connectors • Topic D: FireWire ports, cables, and connectors • Topic E: Infrared and Bluetooth wireless ports • Topic F: Multimedia ports, cables, and connectors • Topic G: Port, cable, and connector troubleshooting

  21. PC input devices • Keyboard • Mouse • Trackball • Trackpad • Pens (styli) • Touch screens

  22. Keyboard port and connector

  23. AT keyboard port and connector

  24. Mouse port and connector

  25. Bar code reader with Y-cable

  26. Activity B-1 Examining keyboard and mouse ports

  27. Topic C • Topic A: Serial and parallel ports, cables, and connectors • Topic B: Keyboards, mice, and pointing devices • Topic C: USB ports, cables, and connectors • Topic D: FireWire ports, cables, and connectors • Topic E: Infrared and Bluetooth wireless ports • Topic F: Multimedia ports, cables, and connectors • Topic G: Port, cable, and connector troubleshooting

  28. USB features • Hot-swappable • Self-configuring connections • Multiple device support • High-speed data transfers • Two classes • Host • Device

  29. USB device classes • Audio • Communications device • HID • Imaging • IrDA Bridge • Mass storage • Monitor • Printer • Video

  30. USB versions • USB 1.1 • Up to 12 MBps transfers • USB 2.0 • Three speeds: 1.5 MBps, 12 MBps, and 480 MBps • Backward compatible

  31. USB symbols USB port symbol USB 2.0 label

  32. USB devices in Device Manager

  33. USB ports

  34. USB connectors

  35. USB power • 5 volts, 6 amps = 30 watts powe • Best for small-draw devices, such as USB hubs • Use a powered hub with many devices or high-draw devices

  36. Installing USB devices • Run setup program from device manufacturer • Connect USB device • Bar code readers • Keyboards • Mice • Touch screen monitors • Multimedia devices • Scanners/printers • Biometric devices • Restart your computer

  37. Activity C-1 Examining the USB bus

  38. Topic D • Topic A: Serial and parallel ports, cables, and connectors • Topic B: Keyboards, mice, and pointing devices • Topic C: USB ports, cables, and connectors • Topic D: FireWire ports, cables, and connectors • Topic E: Infrared and Bluetooth wireless ports • Topic F: Multimedia ports, cables, and connectors • Topic G: Port, cable, and connector troubleshooting

  39. FireWire features • Hot-swapping and self-configuration • Multiple device support — Up to 63 devices (16 physical) • Data transfer rates of 800 Mbps and beyond • Asynchronous and isochronous transfer modes • Supports time-critical transfers on the bus, such as real-time video • Based on the Serial SCSI standard • Peer-to-peer bus

  40. FireWire versions • FireWire 400 • Up to 400 MBps • Cables up to 4.5 meters • (Daisy chain up to 72 meters) • FireWire 800 • Base speed 800 MBps • 1.6 and 3.2 GBps versions available • Cables up to 4.5 meters • (Extend to 1000 meters with optical repeaters)

  41. Isochronous transfers • Time-critical transfer of data • Video capture • Real-time video • Machine control

  42. 4-pin FireWire ports, connectors

  43. 6-pin FireWire ports, connectors

  44. FireWire power • 30 volts, 1.5 amps = 45 watts power • Higher power provisions than USB

  45. Installing FireWire devices • No device drivers for expansion adapters or devices in • Windows 2000 Professional • All Windows XP versions • OS interacts with device using IEEE 1394 specifications • Simply plug in: • Video cameras • Printers • External drives

  46. Activity D-1 Examining the FireWire bus

  47. Topic E • Topic A: Serial and parallel ports, cables, and connectors • Topic B: Keyboards, mice, and pointing devices • Topic C: USB ports, cables, and connectors • Topic D: FireWire ports, cables, and connectors • Topic E: Infrared and Bluetooth wireless ports • Topic F: Multimedia ports, cables, and connectors • Topic G: Port, cable, and connector troubleshooting

  48. Wireless connections • Infrared • Radio • Bluetooth

  49. Infrared • Pulses of infrared light • 9600 bps to 4 Mbps • 10 – 20 feet range • Direct line of sight • Infrared Serial Data Link (ISDL) • 1.5 Mbps • 20 feet

  50. IrDA port

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