Rj45 cable hacking

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Ethernet ceble hacking

Introduction

In a 10BaseT Ethernet RJ45 cables are used to connect every computer on the network but most often only four wires are used out of a standard eight-wire cable. The following is a trick I have used to organize networks and create a workspace that produces less hazards for people with wondering feet.

Step 1

Ethernet networks using TCP/IP or IPX you will use standard RJ45 cabling that most often uses a host computer and one or more client computers. Host computers are responsible for providing Internet services or network administration for client computers. There can be many setups for your network; this of course depends if you have an Internet connection and what kinds of setup your provider supports. Most common setup is to have a server computer connected to a Hub, the hub then routs information to and from host computers. This does not require any special setup unless you are interested in creating two connections to the network from one wire for cosmetic and confusion purposes.

Using this setup is both safe and economical but is not recommended for first time users to install in a business or in distances less then 15 feet. This is because in order to create such cables you need to have the proper skills to install the RJ45 connectors and install the wires in the right order. In the case of shorter distances like 5 feet, it would be wiser to just purchase two separate cords because it would take up much less time and money.

To execute the following you will need a basic understanding of what wires are active which is provided by us in a chart below. Also you will need a cable long enough to extend from your server or hub to your client computers along with four RJ45 connectors and one RJ45 crimping tool.

#	color
1	White & Green
2	Green
3	White & Orange
4	Blue
5	White & Blue
6	Orange
7	White & Brown
8	Brown

Step 2

The picture above is depicting a person who cut a slit into the RJ45 cable without cutting any wires inside. Next the wires are pulled approximately one inch, just enough so that half of the wires can be spliced and the other half can be pushed back in.
At this point you should have two the main wire with wires 1,2,3, and 6 traveling completely thorough and wires 4,5,7, and 8 cut.

   Now you need to connect a second cord, you will be using wires 4,5,7,and 8 of the original cord to connect to wires 1,2,3,and 6 of the add-on cord.
   To connect them you should strip the insulation of the wires and twist the wires that are to be connected and lay them parallel to the wire, and maybe using a dab of solder before you wrap them. Usually you would use shrink wrap and use a blow dryer to hake the rubber constrict to the wire but if you don't have that handy you will want to use electrical tape. A trick with electrical tape that makes good time is to cut a strip about 1 inch and place it long-ways to the wire and pinch the two sticky surfaces of the tape together.
   Now stuff the wires back in the cord which contains all the wires and tape the two cords together so that it is quite hard to rip the fork of the wires apart.
   Proceed with the opposite side exactly as you did above and you will be sure to have a working network.