Network Cables

goto my site for specs

http://alltechdevelopment.netfirms.com
(remove any spaces placed by techrepublic)

once there goto pc-medic/cables/network for the answers

regards
rick

The first answer is at http://alltechdevelopment.netfirms.com/main/pc_medic/pinoutnetwork.htm

Be careful as the first information on the page is incorrect and will give you a cable with "crossed-pairs" that will only work on 10BaseT. Also the first crossed-pair diagram is for half-duplex only. The diagrams are useful, but use the ones at the bottom of the pages. The important thing to remember is that PCs use wires 1,2,3, and 6 for half-duplex and use these as well as 4,5,7, and 8 for full duplex. The color convention is usually 568-B or 568-A. Most use 568-B which when looking down thru the connector's flat side is orange-s, orange, green-s, blue, blue-s, green, brown-s, brown.

Usually you use a straight cable which is the same connection on both ends. If you need a cross-over cable, usually for connecting 2 PCs without a hub or switch, then switch the orange and green wire pairs at the other end as well as the blue and brown pairs if you need full-duplex. Think of the second PC recieving info from the orange pair on pins 3 and 6 and transmitting back to the first PC on the green pair on pins 1 and 2.

Also, the 569-A color scheme merely swaps the orange and green pairs.

white orange
orange
white green
blue
white blue
green
white brown
brown
This is for straight through cable
If you want to make a crossover cable, have the above on one end and on the other end switch 1 and 3, and switch 2 and 6
Good luck!

Mike

Just wire it soa that the wires are the same on both ends. I usually use wh blue, blue, wh green green...etc. This is the standard straight-thru cables you use to plug in to a switch or hub. There are also patch pannel standard wiring at
http://www.duxcw.com/faq/network/diff568ab.htm

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