PCI Ethernet and Fast Ethernet Adapters

Crossover Cable

If you do not wish to use a repeater or switch to connect servers and workstations together, you can use a crossover cable. A crossover cable connects the transmit, or TX, pins on one end of the cable to the receive, or RX, pins on the other end of the cable. Crossover cables connect workstations and servers directly, without the use of a repeater or switch. You will generally need to make your own crossover cables, or custom order them from your supplier. Cables for 100BASE-TX use two pairs (pins 1, 2, 3, and 6). Cables for 100BASE-T4 use four pairs (pins 1 through 8)

Note: All pins must be connected even if they are not used to transfer data.

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1 23 4 5 6 7 8

1 23 4 5 6 7 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pins used for T4 and TX

Additional Pins used for T4 only

B-2

PCI Ethernet and Fast Ethernet Adapters User’s Guide

Stock Number: 511472-00, Rev. A

Page: B-2

Print Spec Number: 496708-00

 

Current Date: 5/5/97

ECN Date: 5/97

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Image 82
Adaptec PCI Ethernet and Fast Ethernet Adapters manual Crossover Cable