B-2PCI Ethernet and Fast Ethernet AdaptersPCI Ethernet and Fast Ethernet Adapters User’s GuideStock Number: 511472-00, Rev. A Page: B-2Print Spec Number: 496708-00Current Date: 5/5/97 ECN Date: 5/97Crossover CableIf you do not wish to use a repeater or switch to connect servers andworkstations together, you can use a crossover cable. A crossovercable connects the transmit, or TX, pins on one end of the cable tothe receive, or RX, pins on the other end of the cable. Crossovercables connect workstations and servers directly, without the use ofa repeater or switch. You will generally need to make your owncrossover cables, or custom order them from your supplier. Cablesfor 100BASE-TX use two pairs (pins 1, 2, 3, and 6). Cables for100BASE-T4 use four pairs (pins 1 through 8)Note: All pins must be connected even if they are not used totransfer data..1 3 4 5 6 7 821 3 4 5 6 7 82Pins used for T4 and TXAdditional Pins used for T4 only
