White orange orange white blue blue. How to crimp an Internet cable: Making a network at home. Direct Connect Cable Crimping

The 4-core twisted pair network cable became popular during the period of mass distribution of wired Internet in the country. The thing is that, compared to an 8-core cable, it costs 2 times less. Therefore, in order to save money, providers like to use it when connecting to wired Internet. There is one more feature with a 4-core cable design: the data transfer speed is limited to 100 Mbit/s. If you have a 100 megabit network adapter in your computer or laptop, then building a network or making a patch cord using a 4-core cable is economically justified; if you plan to use gigabit equipment in the future, choose an eight-core cable.

Tool for crimping twisted pair 4 cores

As in the case of an eight-core cable, this is the same RJ-45 connector, crimping pliers and the wire itself of the required length, naturally.

Twisted pair crimping circuits, 4 cores

It is important to know here that there are different options for color marking of conductors in the twisted pair cable itself. The figure below shows a pinout diagram for crimping a 4-core twisted pair cable (several options).

If you have one conductor color option, then the pinout will be as follows:

1: White-orange
2: Orange
3: White-green
6: Green

In another variant, instead of white-green and green, white-blue and blue are used, respectively.

The twisted pair pinout will be like this:

1: White-orange
2: Orange
3: White-blue
6: Blue

The figure below lists, perhaps, all the common color schemes of 2-pair twisted pair cables. The main thing is to remember the numbers of the contacts involved: 1 ,2 ,3 And 6

Use the following diagram to make a crossover cable when connecting two computers directly.

Well, that’s all for the theoretical part of crimping a 4-core (2-pair) twisted pair cable. Practical advice (how to crimp) was given earlier in the article - how to crimp a twisted pair, read, see them there. To complete the article, I suggest watching a video where I show how to crimp a twisted pair of four core wires.

There are two main options for twisted pair wiring - EIA/TIA-568A and EIA/TIA-568B. From now on we will simply call them A and B, respectively.

If you consider a twisted pair connecting cable, then under the insulation there are eight wires of different colors. These wires are twisted in twos to form four pairs. Each pair has its own main color: orange, green, blue, brown. But in a pair there is a wire painted in a solid color and a two-color wire, where the main color is mixed with white. It should be remembered that pairs are used to receive and transmit data, but not wires individually, so these pairs should be respected. This means that you cannot connect wires from one pair with contacts from different pairs. Let's stop here for now and won't delve into the physical nature of the "twisted pair".

The twisted pair cable uses RJ-45 connectors. The contacts of this connector are numbered from left to right, if you hold the connector with the metal contacts facing you. It so happens that the pairs of contacts are not in a row, but are in this order:

· 1st pair - pins 4 and 5

· 2nd pair - pins 1 and 2

· 3rd pair - pins 3 and 6

· 4th pair - pins 7 and 8

Particular attention should be paid to pairs 2 and 3, the contacts of which are not arranged in order. The explanation for this lies in the purpose of these pairs. Let's consider what each pair of contacts of the RJ-45 connector in 10Base-T and 100Base-TX is responsible for (10 and 100 Mbit Ethernet, respectively, for which a twisted pair cable is used and 2 pairs of wires are used for reception and transmission):

· 1st pair - can be used for a telephone line. These contacts are located in the middle and 2 wires (this is one pair) in RJ-45 or RJ-11 can be used for the telephone cable. Moreover, RJ-11 can be inserted into a socket with an RJ-45 connector.

· 2nd pair - data transmission, designated Tx.

· 3rd pair - data reception, designated Rx.

· 4th pair - together with the 1st pair can be used for PoE.

The 1st and 4th pairs are not used in data reception and transmission. As for receiving and transmitting data, it’s not so simple. The described scheme is true for so-called DTE devices, representatives of which are end workstations, servers, and hardware routers. The type of such Ethernet port is called MDI (Medium Dependent Interface). There is also a type MDI-X (Medium Dependent Interface with Crossover), in which the receive and transmit pairs are swapped and now the 2nd pair is Rx, and the 3rd pair is Tx. The last type of Ethernet ports is present in DCE devices, which are hubs, 2nd and 3rd level switches, and regular switches.

Let's take a closer look at the data transfer process. When one side sends data, then for the other side it is incoming data. This means that they should leave from the Tx pair and arrive on the Rx. Here it is easy to notice that if you connect the corresponding contacts of the MDI and MDI-X ports, then the data leaving the Tx pair comes to the Rx pair of the other side. This happens because the Tx and Rx pairs are swapped in the MDI-X port. But if you connect ports of the same type, then you need the wires to connect the Tx pair to the Rx pair, i.e. swapped them. The first method is called a “straight cable” and connects pins with the same numbers. The second type of connecting cable is called “crossover” and is distinguished by the fact that it connects the 1st contact on one side with the 3rd contact on the other side, the 2nd with the 6th, the 3rd with 1st, the 6th with 2nd As you can see, in the “crossover cable” the Tx and Rx pairs are swapped.

To understand what type of connecting cable to use, you need to determine the type of devices being connected (intermediate DCE devices, or DTE devices that are the data source). Devices of different types should be connected with a “straight-through” cable, and devices of the same type should be connected with a “crossover” cable. Looking ahead, I will say that if you crimp the connecting cable with wiring options A and B from different ends, you will get a “crossover cable”. This will be visible when we consider these wiring options - they will differ in the “inverted” 2nd and 3rd pairs.

But it should be noted that up to this point, standards for 10 and 100Mbit Ethernet were discussed. In 1000Base-T the situation changes, since all 4 pairs of cable are used for reception and transmission. Because of this, it is no longer possible to use PoE technology or run telephone conversations in parallel with data. You probably already realized that the “crossover cable” for 1000Base-T will look different, since you need to swap not only the 2nd and 3rd pairs, but also the 1st and 4th. But there is good news here - the gigabit Ethernet standard includes automatic detection of the port type, which is called Auto MDI / MDI-X. This means that you can use a “straight cable” to connect devices of different types, as well as the same ones. You can also find Auto MDI/MDI-X in some 100Mbit network cards.

In this article I wanted to show how easy it is to remember the sequence of wires in wiring A and B.

As noted, the middle two pins were for the telephone, so it's easy to remember the 4th and 5th wires, which are blue. It is also easy to remember that only orange and green wires are involved in transmission and reception. We “throw away” the remaining brown wires to the end. And so, solid-color wires constantly alternate with two-color wires (white with the main color). The key point is the color of the first wire, after choosing which, you can logically select the order of the remaining wires. These key wires are white-green for wiring standard A and white-orange for wiring standard B. So, here are the final sequences of wire colors in the wiring:

In practice, wiring standard B for "straight cable" is more commonly used. In fact, it makes no difference which wires connect the contacts, the main thing is to observe the pairs due to their physical properties. But standard wiring is used so that one side of the connecting cable can be re-crimped without error. Imagine that the other end of the cable is in another room or another room, in which case it will not be possible to compare the order of the wires.

The "crossover cable" for Gigabit Ethernet is not shown because a standard "straight through" cable can be used, which is more convenient. Agree, crimping both ends of the cable with the same wiring option, without worrying about how the other end of the connecting cable is crimped, is much more pleasant. But still, if you really want to crimp such a “crossover cable”, then I hope you can do it yourself.

It seems to me that the method I proposed for memorizing the sequence of wires is better suited for beginners than mindlessly memorizing a sequence of 8 colors or verses. A positive point is also that the proposed method is built on some knowledge and the ability to use it logically.

This article does not in any way affect the technique of crimping twisted pair cables. This requires experience and knowledge of the wiring option. How to easily remember the sequence of wires in a standard wiring was discussed above.

Understanding material without images may be difficult. I hope illustrations with examples will appear in the near future.

There are network cables in every home. Even if you have a Wi-Fi router installed in your home, twisted pair crimping can still be useful to you, since this is the cable that is connected to the router. This is not as difficult to do as it might seem. Follow our instructions and everything will definitely work out!

Twisted pair is the most popular wire on the planet; it is through it that signals are transmitted that provide us with access to the Internet. A twisted pair is 4 pairs of wires that differ in color: white-blue and blue, white-green and green, white-brown and brown, white-orange and orange.

To crimp a twisted pair cable you will need the following things:

• Special tool (you can even buy it at a hardware store, it costs from 100 to 300 rubles);
• RJ-45 connectors (transparent “caps” that are installed at the end of the wire, you plug them into the router and computer. A set of 10 connectors costs about 50 rubles);

So, let's begin the cable crimping process.

First you need to gain access to the cable wires. To do this, using a tool or knife, cut off the old connector, if any, and remove the insulation. At this stage you need to be very careful not to damage the wires that are under the insulation. If you are using a tool, find the place on it where the 2 blades are screwed on and insert the wire between them. Lightly pinch the insulation and rotate the cable completely. The downside to the tools is that if you squeeze the cable too hard, you can damage the wires. It is better to remove the insulation with a knife. You should not strip a lot of wires. Release about half a finger of wire. The excess will be trimmed off later.

Now we unwind the pairs and arrange the existing cables in the order shown in the picture below. If it is not displayed for you, then follow the text option (standard A):

1. white-orange wire
2. orange wire
3. white-green wire
4. blue wire
5. white-blue wire
6. green wire
7. white-brown wire
8. brown wire

This scheme is suitable if you connect a router to a computer or a router to a router. However, for a local network the scheme will be different (standard B):

1. white-green wire
2. green wire
3. white-orange wire
4. blue wire
5. white-blue wire
6. orange wire
7. white-brown wire
8. brown wire

Now take a closer look at the connector. There are small plastic partitions inside it. Each section is intended for a separate wire, there are 8 of them in total. This is where we will push the wires a little later. Now they need to be trimmed. The wire insulation should extend slightly into the connector, so measure the required number of wires and use a tool, knife or scissors to cut off the unnecessary ones. Straighten the wires.

Turn the connector over with the snap side down and tuck the wires into their tracks. Be careful to make sure each wire goes where it needs to go. All wires must rest against the front wall of the connector, i.e. go in completely. If the wires are mixed up, take them out, re-arrange them in the correct order and try again.

Now all you have to do is place the connector with the wires inside the special hole of the tool to the end and clamp it a couple of times (until the tool clicks). After this, you can lightly tug the wires and make sure that they are secured (do not overdo it). All that remains is to check the wire for functionality and enjoy the result!

The power cord is used to connect to the network: it combines two PCs into one and connects to other computer devices.

It is extended from the provider to the home of each user individually.

The quality of its compression directly determines how good the connection speed and the operation of the device itself will be.

If you install the Internet in your home and invite a specialized team, there will be no problems.

But sometimes it becomes necessary to compress it yourself.

How to properly crimp an Internet cable is a serious question and should be approached responsibly, having previously studied the information.

Crimping Tools

Read also:How to set up a local network on Windows? The simplest ways

For that, To crimp the Internet cable yourself, you should have some tools:

2 Several adapters(spare ones, just in case). You can purchase them freely in a specialized store.

3 Crimper- a device used for crimping. It is relatively inexpensive, and if you plan to engage in these manipulations, you can buy it.

It is convenient to work with and safe for components.

3 Protection that is installed at the connection point between the cable and the adapter.

A useful thing, it will protect the wire from breaking at the interface.

If you are not inclined to spend additional money, you can use the tools that you have on hand.

But you need to work with them extremely carefully so as not to damage the material.

You can, for example, perform crimping using a regular screwdriver. Then, for manipulations, in addition, take a knife.

Types of cable

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For understanding, how to crimp an internet cable, you need to know what options exist and what they are used for.

Cross – used to connect two identical devices to each other.

For example, two personal computers or two .

Its peculiarity is that each side has its own set of wires.

Crimping methods do not differ between different types of wires. The only difference is what each of them is intended for.

Crimping Pattern Options

It got its name due to the compression method. It is the same for both wires.

But the user performs this manipulation once, since the second part of it is already included in and is with the provider.

For standard Internet with a speed of no more than 100 Mb/s, a connector with 4 cores is installed.

It is quite enough for this speed and for normal operation.

If you need a higher connection speed, then cord with 8 cores is used. It is more expensive.

Today, it is convenient that gadgets have a built-in function that allows you to automatically determine the type of connector and automatically select and carry out the necessary settings.

This greatly helps users who do not have professional knowledge in the field of IT connections, but are trying to solve on their own the problem of how to crimp an Internet cable at home.

It will configure everything automatically and will work absolutely correctly and without complications.

It should also be noted that almost all current devices have the Auto MDI-X form.

This suggests that crossover cables are becoming obsolete and almost no one uses them anymore.

Only those who can recognize the type of connection and configure it themselves are being replaced.

Direct Connect Cable Crimping

Read also: [Instructions] How to connect a printer to a computer on Windows 10 and Mac OS

So, let's take a closer look, how to properly crimp an internet cable.

First you need to clean the wires from their external protection.

In almost all wires in which the wires are in the form of a twisted pair. There is also a special thread with which you can easily get rid of the first layer.

Measure the required length for cutting (attach an adapter), taking into account that a small part of the external protection should extend into the connector by a few millimeters.

Inside the connector there are divisions, for each dart there is a separate one.

The wiring should be carefully arranged in them.

You need to insert it so that the outer shell also fits under the clamp of the adapter.

Using a screwdriver, you need to fix the connector where it comes into contact with the insulated part of the wire.

It is very important to keep track of the wiring; they should each be in their place.

Next step– you need to fix them in the contacts of the adapter.

For this action you will need a crimper.

With its use, the work will be done once and efficiently.

You can also crimp the cable without crimping tools, using a screwdriver to help you.

1 You need to insert it so that the outer shell also fits under the clamp of the adapter.

2 Conveniently place it on a table or other convenient place that will ensure reliable contact of the object with a smooth surface.

In this case, the clamp must be in a free position so as not to crush it during processing.

3 The pressure must be such that each wire will sit correctly in its place and cut through the insulation.

4 Use a flat-sided screwdriver and gently press the connector until no gaps or protrusions are visible.

At the end of processing, it is necessary to check the functionality of the product using a special device.

The tester must be configured as follows before testing: set the switch to diagnose resistance or set the sound signal to sound when the resistance force changes.

It is necessary to conduct a test for each wire separately.

If difficulties arise somewhere and the indicator does not respond, you need to tighten the broken wire and check again.

Of course, you can save money and not buy such a tip.

But the savings will be minimal, and if the wire is damaged, you will need to do the work done again, or even buy other components if something becomes unusable.

The job is done.

The important thing is that the better the adapter is made and the cord is crimped, the better the Internet connection to your PC will be.

If the Internet supply is intermittent, you should check the connector again. Indeed, in this case, over time, it may generally fail.

Cable crimping with cross connection

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Its difference when connected is that the wires change their sequence and are arranged according to the following diagram:

• white-green;
• green;
• white-orange
• blue;
• white-blue;
• orange;
• white-brown;
• brown.

In this case, the first end is processed using direct crimping, and the second using cross crimping.

Principle of operation

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Cables with a twisted pair section most often have eight cores.

They were the first to be used when the Internet appeared in homes.

With the spread of such a means of communication, providers came up with a way to save money and began to use 4-core cables instead of 8-core cables. It's much cheaper.

The four-wire wire has its own distinctive feature, which few people know about, and certainly providers are aware of it.

The fact is that it can transmit data streams at speeds only up to 100 Mbit/s.

If the user does not expect a speed of more than 100 Mbit/s, this connector will suit him. Otherwise, you should turn to an eight-wire one.

The tools for crimping will be the same as described earlier - a connector and a crimper.

The difficulty in working with this option is that you need to understand the color design of the internal wiring.

After all crimping the internet cable will come out correctly, if you know how they are located colors.

Let's consider all the options, How to crimp an internet cable with 4 cores.