Do-it-yourself network cable repair

In detail: do-it-yourself network cable repair from a real master for the site my.housecope.com.

It's no secret that modern technologies are developing rapidly, so in order for us, their consumers, to keep pace with progress, we have to understand every little thing. Today, the Internet has become an integral part of society. To be able to set up a “connection with the world” at home, special knowledge is required.

You can clamp the contacts of the RJ-45 connector at home

Surely each of us will sooner or later face such a problem as the wear of the LAN cable for an Internet connection, the breakdown of the Ethernet connector, or the lack of a network wire. To quickly solve this problem, you will need half an hour of time, knowledge of the algorithm of actions and a minimum set of components.

If you are interested in how to crimp an Internet cable using a special tool - crimping or without it at all, special crimping schemes and the details necessary for this - you are welcome.

Crimping is the attachment of an eight-pin modular connector - an RJ-45 connector to a twisted pair cable (a network cable consisting of eight twisted pairs of cores). For this operation you will need:

  • Internet cable.
  • A couple of RJ-45 connectors. You will need one to work, however, their low price allows you to take one or more in reserve.
  • Crimp. He is a crimper, he is also a press tongs - a special tool for significantly speeding up the crimping process.
  • Insulating cap. Not required, but it will help prevent subsequent wire kinking and debris getting into the RJ-45 connector.

To date, there are two twisted pair crimping schemes - a straight cable and a crossover (crossover).

Video (click to play).

Typically, the straight through cable technique is used to connect:

  • Computer and switch.
  • Computer and router.
  • TV and router.
  • Router and switch.

Cross cable crimping is becoming less and less common today, as modern technology automatically detects the type of network wire and works flawlessly with both straight and crossover cables. The cross type is used to link mechanisms of the same type:

  • Router and router.
  • Switch and switch.
  • PC and PC.

The scheme for direct construction of colored cores at both ends of the cable is as follows:

As for the crossover cable, here both ends of the twisted pair will be different, and the core distribution scheme looks like this:

Having decided on the scheme, we proceed to the most important part of the entire procedure - crimping the RJ-45 connector using a special tool - crimping. The peculiarity of working with a crimper is that it significantly saves time and performs the critical part on its own.

Image - Do-it-yourself network cable repair

You should start work by cutting off the previous connector (if there is one, it will become a model for the location of the cores). Next, you should strip the twisted pair from insulation, exposing the colored wires so that their length matches the connector and they sit in it all the way. The outer sheath can be cleaned with a double crimping knife or with a regular penknife. The colored strands will be twisted in pairs, so they should be disconnected, straightened and cut evenly to the same length. Having arranged the wiring according to the chosen scheme, we take the RJ-45 connector with the latch to the bottom. We insert the cores into it all the way so that a small part of the insulation of the Internet cable also enters the connector. When the wires are in their guide channels and the edge of the insulation is under the RJ-45 clamp bar, it's time to crimp. We place the connector with the cores in the tool connector.There are only a couple of strokes left - we squeeze the crimper handles so that the clamping bar (contacts) of the RJ-45 plug cuts through the core insulation.