Fast Ethernet (1)

• specification: IEEE 802.3u

• speed: 100 Mbps

• access method: CSMA/CD;

• topology: star; applications: enterprise servers, backbone

• frame size : 64-1500 Bytes

• Three media types: 100base-TX, 100base-FX, 100base-T4

• 100base-TX

  • wiring : cat5 UTP / STP; max. length of point-to-point connection: 100m;
  • connector : 8-pin (RJ45), 9-pin (D-type)
  • two pair of wire: one for receive and one for transmit; 100baseX signaling
  • max network diameter 200 m; max 2 hubs (repeaters) between DTEs

• 100base-FX

  • wiring 62.5/125 multi-mode fiber-optic cable; 2 strands;
  • DTE-to-DTE length : 400 km; 100baseX signaling
  • connector SC, ST, MIC

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