How to Make a LAN Crossover Ethernet Cable
A local area network (LAN) crossover Ethernet cable allows you to connect two devices on the same network level together. The network level that a device is on is determined by what is known as the Open Systems Interconnection (OSI) model. Switches fall under layer 2 devices because they do not have routing capabilities. Routers fall under layer 3. Thus, you can connect two switches or two routers together using a crossover cable, but you can't connect a switch and a router.
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Instructions
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1
Cut a strip of Ethernet cable to the desired length.
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2
Strip an inch of the outer plastic covering, revealing the eight inner wires.
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3
Strip away about an eighth an inch from each of the eight wires.
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4
Hold the RJ-45 tip with the clip facing away from you. Insert the eight wires into the tip, starting from left to right as follows: white-green, green, white-orange, blue, white-blue, orange, white-brown and brown.
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5
Insert the RJ-45 tip with the eight wires into the RJ-45 crimper, being careful to not let any of the eight wires fall out. Push down on the handle to crimp the RJ-45 tip and secure the wires in the tip.
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6
Repeat step 4 and 5 with the other end of the wire, but place the eight wires into the RJ-45 tip from left to right as follows: white-orange, orange, white-green, blue, white-blue, green, white-brown and brown.
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