CrossOver Diagram || Cat 5 Cable Wiring


Cat 5 Cable Wiring


	Category 5 Section
	What is Cat 5 Cabling Cat 5 Wiring Tutorial Crossover Diagram Maximum Length for Cat 5 Straight Through vs Crossover T568A and T568B Differences Ethernet Cable Specifications How to Crimp a Cat 5 Cable How to Terminate Cat 5 Cables Cat 5 and Cat 5e Differences Installing Cat 5 Through a Roof Making a Cat 5 Cable Maximum Cat 5 Signal Range The Cat 5 Color Code Cat 5 For Outdoor Use VGA Over Cat 5 Using Cat 5 For Phone Wires

	Cat 3 and Cat 6 Section
	Cat 5 vs Cat 3 Cat 5 vs Cat 6 Cat 6 Specifications Terminating Cat 6 Cable

	Tools And Misc Section
	Cat 5 Tools Cat 5 Cable Tester Crimp-Down vs Punch-Down Building a Cat 5 Tester Using Keystone Wiring Crimping a Patch Cable Wiring Phone With Only Two Sets RJ45 Wiring T568A Specifications T568B Specifications UTP Color Code

CrossOver Diagram

In general the cords you use with your Ethernet connections are straight through however as you will notice on the crossover diagram below it is sometimes necessary to have crossover cables. The most common use for crossover cables includes home networks when you want to connect two Ethernet compatible computers without having to use a hub or when you are connecting two or more hubs directly together.

The difference between Straight through wiring and crossover wiring is complex but is displayed well in the crossover diagram. Straight through implies that the first pin of the plug is connected to the pin one on the other side of the plug and so on. The easiest way to complete a cable crossover is to wire one end using the T568A standard and the other in the T568B format.

Above is your basic crossover cable.
To the right is a diagram of how you would punch down a crossover cable.

Crossover diagram being punched down on a punchblock.

You need to be wary when you are working with devices like cable and DSL modems however. They usually have their Ethernet plugs reversed. They do this to allow people to hook up their modem without a special crossover cable. This is only an issue when you are attempting to add a hub to your system. Almost all of the modern hubs have an uplink port with them. This was created so that they could work with modems that have the reversed Ethernet plugs. If you follow all of the above directions and use the crossover diagram as a reference you shouldn’t encounter any problems when you are attempting a crossover.