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PCI Ethernet and Fast Ethernet Adapters User’s Guide
Stock Number: 511472-00, Rev. A Page: B-1
Print Spec Number: 496708-00
Current Date: 5/5/97 ECN Date: 5/97
B-1
B
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Cables
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, etc.) Straight-through
cables connect workstations and servers to repeaters and switches.
Cables for 100BASE-TX use two pair (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