LECTURE-7       REFERENCE:            Chapter 7       Transmission Media7.1       www.fida.com.bd
Figure 7.1 Transmission medium and physical layer7.2
Figure 7.2 Classes of transmission media7.3
7-1 GUIDED MEDIA Guided media, which are those that provide a conduit from one device to another, include twisted-pair cab...
Figure 7.3 Twisted-pair cable7.5
Figure 7.4 UTP and STP cables7.6
Table 7.1 Categories of unshielded twisted-pair cables7.7
Figure 7.5 UTP connector7.8
Figure 7.6 UTP performance7.9
Figure 7.7 Coaxial cable7.10
Table 7.2 Categories of coaxial cables7.11
Figure 7.8 BNC connectors7.12
Figure 7.9 Coaxial cable performance7.13
Figure 7.10 Bending of light ray7.14
Figure 7.11 Optical fiber7.15
Figure 7.12 Propagation modes7.16
Figure 7.13 Modes7.17
Table 7.3 Fiber types7.18
Figure 7.14 Fiber construction7.19
Figure 7.15 Fiber-optic cable connectors7.20
Figure 7.16 Optical fiber performance7.21
7-2 UNGUIDED MEDIA: WIRELESS  Unguided media transport electromagnetic waves  without using a physical conductor. This typ...
Figure 7.17 Electromagnetic spectrum for wireless communication7.23
Figure 7.18 Propagation methods7.24
Table 7.4 Bands7.25
Figure 7.19 Wireless transmission waves7.26
Figure 7.20 Omnidirectional antenna7.27
Note         Radio waves are used for multicast         communications, such as radio and           television, and paging...
Figure 7.21 Unidirectional antennas7.29
Note              Microwaves are used for unicast              communication such as cellular               telephones, sa...
Note       Infrared signals can be used for short-       range communication in a closed area           using line-of-sigh...
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Lecture-7 Data Communication ~www.fida.com.bd

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Lecture-7 Data Communication ~www.fida.com.bd

  1. 1. LECTURE-7 REFERENCE: Chapter 7 Transmission Media7.1 www.fida.com.bd
  2. 2. Figure 7.1 Transmission medium and physical layer7.2
  3. 3. Figure 7.2 Classes of transmission media7.3
  4. 4. 7-1 GUIDED MEDIA Guided media, which are those that provide a conduit from one device to another, include twisted-pair cable, coaxial cable, and fiber-optic cable. Topics discussed in this section: Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable7.4
  5. 5. Figure 7.3 Twisted-pair cable7.5
  6. 6. Figure 7.4 UTP and STP cables7.6
  7. 7. Table 7.1 Categories of unshielded twisted-pair cables7.7
  8. 8. Figure 7.5 UTP connector7.8
  9. 9. Figure 7.6 UTP performance7.9
  10. 10. Figure 7.7 Coaxial cable7.10
  11. 11. Table 7.2 Categories of coaxial cables7.11
  12. 12. Figure 7.8 BNC connectors7.12
  13. 13. Figure 7.9 Coaxial cable performance7.13
  14. 14. Figure 7.10 Bending of light ray7.14
  15. 15. Figure 7.11 Optical fiber7.15
  16. 16. Figure 7.12 Propagation modes7.16
  17. 17. Figure 7.13 Modes7.17
  18. 18. Table 7.3 Fiber types7.18
  19. 19. Figure 7.14 Fiber construction7.19
  20. 20. Figure 7.15 Fiber-optic cable connectors7.20
  21. 21. Figure 7.16 Optical fiber performance7.21
  22. 22. 7-2 UNGUIDED MEDIA: WIRELESS Unguided media transport electromagnetic waves without using a physical conductor. This type of communication is often referred to as wireless communication. Topics discussed in this section: Radio Waves Microwaves Infrared7.22
  23. 23. Figure 7.17 Electromagnetic spectrum for wireless communication7.23
  24. 24. Figure 7.18 Propagation methods7.24
  25. 25. Table 7.4 Bands7.25
  26. 26. Figure 7.19 Wireless transmission waves7.26
  27. 27. Figure 7.20 Omnidirectional antenna7.27
  28. 28. Note Radio waves are used for multicast communications, such as radio and television, and paging systems.7.28
  29. 29. Figure 7.21 Unidirectional antennas7.29
  30. 30. Note Microwaves are used for unicast communication such as cellular telephones, satellite networks, and wireless LANs.7.30
  31. 31. Note Infrared signals can be used for short- range communication in a closed area using line-of-sight propagation.7.31

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