3.3. Wiring Standards
Ethernet cabling is an important thing to understand, especially if you're planning to work on any type of LAN network. There are different types of wiring standards available:
Straight-through cable (568A)
Crossover cable (568B)
Rolled cable (rollover)
Hardware loopback
We will look into each one of these, and then I'll end this section with some examples for you.
3.3.1. 568A vs. 568B
If you look inside a network cable, you will find four pairs of wires twisted together to prevent crosstalk; they're also twisted like this to help prevent EMI and tapping. The same pins have to be used on the same colors throughout a network to receive and transmit; but how do you decide which color wire goes with which pin? The good news ...
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