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Figure 3-2

Figure 3-2. CSMA/CD. Figure 3-3. Ethernet layers. Figure 3-4. Ethernet frame.

stuart-maldonado
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Figure 3-2

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  1. Figure 3-2 CSMA/CD

  2. Figure 3-3 Ethernet layers

  3. Figure 3-4 Ethernet frame

  4. Transceivers are used to connect nodes to the various Ethernet media. Most computers and network interface cards contain a built-in 10BASE-T or 10BASE2 transceiver, allowing them to be connected directly to Ethernet without requiring an external transceiver. Many Ethernet devices provide an AUI (Attachment Unit Interface ) connector to allow the user to connect to any media type via an external transceiver. The AUI connector consists of a 15-pin D-shell type connector, female on the computer side, male on the transceiver side. Thickwire (10BASE5) cables also use transceivers to allow connections Transceivers

  5. Figure 3-5:a Ethernet implementation

  6. The Original Ethernet The first Ethernet (10Base5) used a bus topology and a thick coaxial cable. Transceivers connect the network adapters to the cable via a vampire tap that "bites" into the coax.

  7. Figure 3-5:b Ethernet implementation

  8. Thin Ethernet 10Base2 Ethernet was a later variation of the original 10Base5. It used a thinner coaxial cable attached to each node using BNC (bayonet Neil-Concelman) T-connectors

  9. Figure 3-5:c Ethernet implementation

  10. Twisted Pair Ethernet Most Ethernets use twisted pair wiring. All cables use RJ-45 connectors between the network adapters in the PC and a central hub or switch Ethernet Switch This 10/100 switch from Omnitron has 16 ports and automatically senses the transmission rate of the line and adjusts accordingly

  11. Figure 3-5:d Ethernet implementation

  12. Figure 3-6:a Fast Ethernet implementation

  13. Figure 3-6:b Fast Ethernet implementation

  14. Figure 3-6:c Fast Ethernet implementation

  15. Figure 3-7:a Gigabit Ethernet implementation

  16. Figure 3-7:b Gigabit Ethernet implementation

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