Breaking Down a UTP Ethernet Link
The term Ethernet link refers to any physical cable between two Ethernet nodes. To learn about how a UTP Ethernet link works, it helps to break down the physical link into those basic pieces, as shown in Figure 2-7: the cable itself, the connectors on the ends of the cable, and the matching ports on the devices into which the connectors will be inserted.
Figure 2-7 Basic Components of an Ethernet Link
First, think about the UTP cable itself. The cable holds some copper wires, grouped as twisted pairs. The 10BASE-T and 100BASE-T standards require two pairs of wires, and the 1000BASE-T standard requires four ...
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