Do network cables, isn t it, white orange, orange, white blue, white green, green, white brown, brow

It depends on whether it is a cross line or a straight line.

Straight-through are all.

White orange, orange, white-green, blue, white-blue, green, white-brown, brown.

Cross lines. White orange, orange, white-green, blue, white-blue, green, white-brown, brown.

White-green, green, white-orange, blue, white-blue, orange, white-brown, brown.

Yes, but remember to cut the thread when you enter the crystal head.

The different colors of the network cable are used to identify different functions, and the role of the network cable according to the different colors is also different.

There are two main types of network cable sequences:

The wiring order of T568A is: green-white, green, orange-white, blue, blue-white, orange, brown-white, brown-white, and brown-whiteThe wiring order of T568B is: orange-white, orange, green-white, blue, blue-white, green, brown-white, and brown-white

Direct connection means that the crystal heads at both ends of the network cable are crimped in accordance with the T568A or T568B standard (commonly used T568B standard). Crossover wire means that one end of the network cable is crimped according to the T568A standard, and the other end is crimped according to the T568B standard.

The reason why there are two types of jumpers is because they are suitable for different environments.

The direct cable is suitable for connecting the computer network port with the switch, or cascading between the switches.

Crosswires are suitable for direct connections between computers to form peer-to-peer networks, and for some hubs, if you want to expand through the expansion port, you also need to use crosswires.

The network cable is connected by white orange, orange, white blue, blue, white green, green, white brown and brown, and the length is in meters, and it can be used. This is because the length is very short, and there is not much interference between the network cables. When the length is more than 10 meters, the wrong connection method will cause a large near-end crosstalk of the network cable.

Crosstalk can be minimized by the twisting of the cables, so that the signal coupling is mutually suppressed. When there is an error in the installation link, this mutual suppression can be broken and excessive crosstalk can be generated. A typical example of this is the case of tandem in which two different pairs of wires are reassembled into new transmit or receive pairs, thus destroying the effect of the twist to eliminate crosstalk.

For 10m network transmission, if the distance is not long, the impact of the existence of Shen winding is not obvious, and sometimes it even feels that the network is running completely normally, but for 100M network transmission, the existence of string winding is fatal.

If the line is connected according to the following line pair order, it is a string, that is, white orange, orange, white green, green, white blue, blue, white brown, and label. Wiring in this way will cause great network collision and frame verification errors, which will affect the transmission performance of the network, and even cause network paralysis.

Summary. It can be done, for the transmission volume is not large, and the distance is not far is okay. I used to make one network cable as two network cables. A group of 1236, one-to-one correspondence is fine.

It can be done, for the transmission volume is not large, and the distance is not far is okay. I used to make one network cable as two network cables. A group of 1236, one-to-one correspondence is fine.

A network cable, flat, the color is gray, brown, yellow, green, red, black, orange, blue, what should I do? The length does not exceed ten meters.

Hello dear! The first step is to cut off the old network cable head with a network cable pliers. The second step is to turn the network cable around the gap in the network cable pliers, and cut off the outer skin of the Mingda net Suihuai Chong line.

The third step is to pull off the jacket of the network cable. The fourth step is to arrange the network cables in the order of orange-white-orange-green-white-blue-blue-blue-white-green-brown-white-brown. The fifth step is to cut the arranged network cables with network cable pliers.

The sixth step is to insert the cut network cable into the crystal head, pay attention to the orange and white on the left side of the crystal head, and do not plug it in the other way. Step 7: Put the network cable plugged into the network cable pliers. Pinch the pliers firmly so that they no longer fall off.

Step 8: Pinch the mesh wire pliers so that it no longer falls off. Hope it helps!

There are two ways to connect the network cable, one is 568a, and the connection method is: white green, green, white orange, blue, white blue, orange, white brown, brown.

The other is 568b, which is connected as: white orange, orange, white green, blue, white blue, green, white brown, brown.

The two are:

When connected to the same device: 568A and 568B connections (cross-connection) are used at both ends, such as: computer to computer, router to router!

When connecting with different devices: use a 568A or 568B connection method (straight-through connection) at both ends, for example: connect the computer to the router!

These two practices are international standard practices and are used to reduce interference between signals! In fact, although there are four groups (eight) of current network cables, only two groups (four) are actually used!

Of course, you can also do this, provided that the order of both ends must be the same, and it can also be regarded as a straight-through connection! Although this method is available, it will cause some interference to the signal and is not recommended!

It is usable by reluctantly. But. The network cable inside the 8 cores is made into two two stranded in and is to prevent signal interference, according to your way to connect, there will be a problem of model interference, short words may not be obvious, but long-distance transmission is likely to have problems.

Therefore, it is not recommended to do this. Let's follow the standard wiring method.

If the distance is not long, it can be used like this, and if it is too long, it is not good.

Yesterday I wired my friend's house, and this is how the network cable socket port was connected. I asked, it was the mobile broadband staff who connected it, and the other end of the router was connected by 568b. It's actually unblocked.

Recently I did a project where I wanted to connect four network cameras to a gateway.

Two of the cameras are connected smoothly, how the two cameras are connected failed, and then the problem has been troubleshooting, the device, the network port, is because there are two connections are normal, so it has not been considered to the network cable sequence problem.

In the end, it was found that it was really the network cable used by the customer, and the blue and green lines were not connected in accordance with the specified line sequence.

Hurt me! Two business trips on this issue to run the scene!

Good two cameras, 2-4 meters away from the gateway, signal interference is still within the normal range of communication, and can be connected normally.

However, the other two cameras are more than 10 meters to 20 meters away from the gateway, at this time, the disadvantages of signal interference have exceeded the threshold of normal communication, so when pinging, packets are lost or directly ping.

It is wrong not to directly determine the connection method of white-blue, blue, white-green, and green, but my bitter experience in October told me that even if this connection method can be used for a short distance (within 8m), I will definitely check the customer's network cable sequence and follow the 568b standard.

After subsequent inquiry, it was found that there are two colors in the network cable that are the main transmission colors, namely orange and green (the quality is relatively good), and then the definition standard of the RJ45 interface is 1236 pins for data transmission, and it can be found that the 1236 pins of both standards are borne by the four lines of white, orange, white, green, and green. If you follow the white-blue-blue-white-green-green to connect, 3 6 pins are blue-green, this is not a pair of twisted pairs, there is no problem with transmission within a short distance of 10m, the distance is long, the crosstalk exceeds the threshold network failure problem, especially the 100m network card has 8 shrapnel, four for data transmission, and the other four for anti-crosstalk, or in strict accordance with the 568b line sequence to make network cables.

Therefore, the reasons for stipulating such a line order as 568b are presumably mainly:

RJ45 specifies that the transmission pins are 1, 2, 3, 6

The 8 wires of the network cable have a quality difference, and the four wires that bear the transmission are mainly white-orange, orange, white-green, and green, and in order to cater to the RJ45 pin definition, one of the pairs of wires is separated and staggered to 3 6.

Transmission line twisted pair, four wires for transmission correspond to two pairs of twisted pairs.