A-4
Fast Ethernet Network Interface Cards
Twisted Pair Cable Types
Straight-through Cable
The majority of twisted-pair environments utilize twisted-pair
cables that are wired straight-through. This means that each pin of
the modular plug connector is wired to the same pin on the opposite
end of the cable (i.e., pin 1 is wired to pin 1). Straight-through cables
connect workstations and servers to repeaters and switches. Cables
for 100BASE-TX use two pairs (pins 1, 2, 3, and 6). Cables for
100BASE-T4 use four pairs (pins 1 through 8).
1 3456782
1 3456782
Pins used for T4 and TX
Additional pins used for T4 only
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