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Chapter 7

Chapter 7. Transmission Media. Figure 7.1 Transmission medium and physical layer. Figure 7.2 Classes of transmission media. 7.1 Guided Media. Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable. Figure 7.3 Twisted-pair cable. Figure 7.4 UTP and STP.

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Chapter 7

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  1. Chapter 7 TransmissionMedia

  2. Figure 7.1Transmission medium and physical layer

  3. Figure 7.2Classes of transmission media

  4. 7.1 Guided Media Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable

  5. Figure 7.3Twisted-pair cable

  6. Figure 7.4UTP and STP

  7. Table 7.1 Categories of unshielded twisted-pair cables

  8. Figure 7.5UTP connector

  9. Figure 7.6UTP performance

  10. Figure 7.7Coaxial cable

  11. Table 7.2 Categories of coaxial cables

  12. Figure 7.8BNC connectors

  13. Figure 7.9Coaxial cable performance

  14. Figure 7.10Bending of light ray

  15. Figure 7.11Optical fiber

  16. Figure 7.12Propagation modes

  17. Figure 7.13Modes

  18. Table 7.3 Fiber types

  19. Figure 7.14Fiber construction

  20. Figure 7.15Fiber-optic cable connectors

  21. Figure 7.16Optical fiber performance

  22. 7.2 Unguided Media: Wireless Radio Waves Microwaves Infrared

  23. Figure 7.17Electromagnetic spectrum for wireless communication

  24. Figure 7.18Propagation methods

  25. Table 7.4 Bands

  26. Figure 7.19Wireless transmission waves

  27. Figure 7.20Omnidirectional antennas

  28. Note: Radio waves are used for multicast communications, such as radio and television, and paging systems.

  29. Figure 7.21Unidirectional antennas

  30. Note: Microwaves are used for unicast communication such as cellular telephones, satellite networks, and wireless LANs.

  31. Note: Infrared signals can be used for short-range communication in a closed area using line-of-sight propagation.

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