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.

Example of a basic crossover cable.
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.

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