Introduction to Data Communications
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36b. IEEE 802.3 Ethernet Media Types

IEEE 802.3 defines 5 media types of IEEE 802.3 Ethernet Types:

IEEE 802.310Base5Thick Coax10MbpsBaseband500m
IEEE 802.3a10Base2Thin Coax10MbpsBaseband185m
IEEE803b10Broad36Broadband10 MbpsBroadband3600m
IEEE802.3e1Base5StarLAN1 MbpsBaseband500m
IEEE 802.3i 10BaseTTwisted Pair10MpsBaseband100m

IEEE 802.3 - 10Base5 (Thick Coax) is used only as backbones to networks. Backbones are lines that connect buildings & network equipment together such as Bridges, Routers, Brouter, Hubs, Concentrators, Gateways, etc.. 10Base5 is being replaced by either Thin Coax or fibre optics.

IEEE 802.3a - 10Base2 is commonly used in new installations as a backbone to connect buildings and network equipment together. 10Base2 (Thin Coax) is also used to connect work-stations together but the preferred choice is to use 10BaseT.

IEEE 802.3b - 10Broad36 is rarely used, it combined analog and digital signals together. Broadband means that a mixture of signals can be sent on the same medium.

IEEE 802.3e - StarLAN is a slow 1 Mbps standard that has been replaced by Thin Coax or Twisted Pair.

IEEE 802.3i - 10BaseT is commonly used to connect workstations to network hubs. The network hubs can use 10BaseT (Twisted Pair) to connect to other Hubs.


Introduction to Data Communications
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