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Lesson 6. The Ethernet 10BaseT LAN

Lesson 6. The Ethernet 10BaseT LAN. Objectives. At the end of this Presentation, you will be able to:. List the characteristics, advantages and disadvantages of the 10BaseT LAN. Explain the purpose of the hub and the crossover cable. Describe the basics of star bus topology.

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Lesson 6. The Ethernet 10BaseT LAN

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  1. Lesson 6. The Ethernet 10BaseT LAN

  2. Objectives At the end of this Presentation, you will be able to:

  3. List the characteristics, advantages and disadvantages of the 10BaseT LAN. Explain the purpose of the hub and the crossover cable. Describe the basics of star bus topology. Explain the issues involved in constructing a 10BaseT LAN that uses multiple hubs. Describe the connectors and cables used in the 10BaseT LAN.

  4. Network+ Domains covered: 1.1 1.3 1.4 1.5 1.6 2.4

  5. Two Popular Ethernet Topologies: Bus Star

  6. 10BaseT and 100BaseT

  7. What’s in a name? 10BaseT 100BaseT

  8. The number on the left is the speed of the LAN. 10 Base T 100 Base T Speed in Megabits Per Second

  9. The number on the right tells you something about the cable. 10 Base T 100 Base T T stands for Twisted Pair

  10. The number on the right tells you something about the cable. F stands for Fiber Optic Cable 100 Base F

  11. The word in the middle signifies the type of signal. 10 Base T 100 Base T Type of Signal

  12. Baseband Signal 1 Broadband Signal 2 Signal 3

  13. 10 Base T Baseband Speed in Megabits Per Second Twisted-Pair Cable

  14. The 10BaseT LAN Hub

  15. Bus Topology 8 10 9 7 6 1 2 3 4 5

  16. 10BaseT Ethernet

  17. Star Bus Topology • Physically - a star. • Logically - a bus.

  18. The Ethernet Hub Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8

  19. Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8

  20. An electronic equivalent of the Bus is inside the Hub.

  21. Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8

  22. Twisted-Pair Cable UTP—Unshielded Twisted-Pair STP—Shielded Twisted-Pair

  23. Twisted Wire-Pair Cable Foil Shield Wire Braid Shield Foil Shield STP UTP STP

  24. 10BaseT Ethernet uses Unshielded Twisted Pair (UTP) cable.

  25. RJ-45 Connector Strain Relief Crimp Contacts Latch Wires

  26. The RJ-45 Jack or Receptacle

  27. The EIA/TIA 568A Color Code

  28. The hub listens for packets on pins 3 and 6. 3 6

  29. The hub retransmits packets on pins 1 and 2. 1 2

  30. Twisted-Pair Advantages UTP is inexpensive. Workstations are isolated from each other by a central hub. Easy to add workstations to the segment. Easier to route than coaxial cable. Easier to troubleshoot than coaxial cable network.

  31. Twisted-Pair Disadvantages UTP cable is very susceptible to outside electrical interference. Suffers from cross talk between wire pairs. Poor conductor; attenuates signal more quickly than coax. Maximum segment length approximately half that of coaxial cable. STP cable is more expensive than UTP cable or thinnet cable. It is also difficult to work with because of its shielding.

  32. EIA/TIA Cable Categories Category 1—Voice-grade UTP telephone cable Category 2—Data-grade UTP, 4 Mbps cable Category 3—Data-grade UTP, 10 Mbps cable Category 4—Data-grade UTP, 16 Mbps cable Category 5—Data-grade UTP, 100 Mbps cable

  33. Category 3 Cable Common data-grade cable. Four unshielded twisted-pair wires. Transmission rates up to 10 Mbps.

  34. Category 5 Cable Data-grade cable. Official transmission rates up to 100 Mbps. Four unshielded twisted-pair wires.

  35. Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8

  36. Segment 2 Segment 1 Crossover Cable

  37. The Standard UTP Cable. 1 1 2 2

  38. 3 3 6 6 Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8 Standard Cable

  39. 1 1 2 2 Ethernet 8-Port Hub BNC 1 2 3 4 5 6 7 8 Standard Cable

  40. 1 1 2 2 Ethernet 8-Port Hub Ethernet 8-Port Hub BNC BNC 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Standard Cable

  41. The Crossover Cable. 1 2 3 6

  42. 1 2 3 6 Ethernet 8-Port Hub Ethernet 8-Port Hub BNC BNC 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Crossover Cable

  43. 1 2 3 6 Ethernet 8-Port Hub Ethernet 8-Port Hub BNC BNC 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Crossover Cable

  44. 1 2 3 6 Crossover Cable

  45. Crossover Cables should be clearly marked.

  46. Hub with Uplink Port Ethernet 8-Port Hub Uplink 1 2 3 4 5 6 7 8

  47. Connecting Hubs with Uplinks Ethernet 8-Port Hub Uplink 1 2 3 4 5 6 7 8 Straight-through Cable Ethernet 8-Port Hub Uplink 1 2 3 4 5 6 7 8

  48. List the characteristics, advantages and disadvantages of the 10BaseT LAN. Explain the purpose of the hub and the crossover cable. Describe the basics of star bus topology. Explain the issues involved in constructing a 10BaseT LAN that uses multiple hubs. Describe the connectors and cables used in the 10BaseT LAN.

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