Does the white brown line and brown line on the network cable matter?

The white-brown and brown lines in the network cable are spare cables, so they are not very important.

The network cable commonly used at home is called "twisted pair", which consists of 8 wires of different colors, and generally only uses numbered cores to transmit data, that is, for sending and receiving.

By color:

Orange and white and orange are used for sending;

Green and white and green are used for receiving;

The other colors are two-way lines.

It doesn't matter if you want to connect the two machines, teach you a benzene method, and when you do the two threads, it's good to do the reverse that is, the order of your threads is arbitrary, as long as the two threads are reversed.

T568B's method: put the white on the left and the solid color line on the right, arrange and separate them in the order of orange, green, blue, and brown, and then exchange the pure green line with the pure blue line. The line sequence in this case is T568B;

After arranging T568B, the exchange of Line 1 and Line 3, and the exchange of Line 4 and Line 6 is T568A

Both ends of the network cable are B or A are called parallel lines, which are used for the connection between machines and equipment;

One end is A and the other end is B, which is called a cross line, which is used to connect two machines.

The brown and brown in the network card is not useful.

There are two types of hair for the net head.

1.Orange white, orange, green white, blue, blue and white, green, brown white, brown.

2.Green-white, green, orange-white, blue, blue-white, orange, brown-white, brown-white.

You can now see that in both ways, the brown and white lines are at the end, and Kenben has no order of movement. So these two lines are generally not needed.

You can find a quick early network card, you can see that there are only metal pins in the network head, and there are no other places.

In order to save the first line, some companies set aside the brown and white and brown when taking the network cable as the first line.

At least I've done it.

Alternate lines.

The production line sequence of the twisted pair RJ45 crystal head.

With the metal piece of the crystal head facing itself (the small tail is on the back, facing down), from left to right in line sequence 1 2 3 4 5 6 7 8

568A standard: white-green green white-orange blue white-blue orange white-brown brown 568b standard: white-orange white-green blue white-blue green-white-brown brownWhen the same standard is used at both ends of the twisted pair, it is a direct line, also called a straight-through line, which is used to connect computers with switches, hubs, etc.;

When different standards are used at both ends of the twisted pair, they are crosswires, which are used to connect computers to computers, switches to switches, etc.

It can be understood that the equipment of the same level uses a cross line, and the different levels use a straight line.

RJ-45 each pin function (10BaseT 100BaseTX):

1. Transmit data positive electrode tx+

2. Transmit the negative electrode of the data tx-

3. Receive data positive rx+

4. Standby (when 1236 fails, automatically cut into the use state) 5, standby (when 1236 fails, automatically cut into the use state) 6, receive data negative rx-

7. Standby (when 1236 fails, automatically cut into the use state) 8, standby (when 1236 fails, automatically cut into the use state) Note: The four wires will be used as POE power supply lines for a group or a group if necessary.

There are a total of 8 cores in the network cable, but in fact, only 1 2 3 6 are used in these four cores, so at present, you can often see the crystal head that only makes four cores, and it can also be used normally, white brown and brown are the last two cores, in fact, there is no use.

Well, the current domestic network standard only uses 8-core super Cat5e wire.

The standard lines on the RJ45 crystal head are orange white, orange, green white, blue, blue and white, green, brown and white, brown).

No. The wire sequences 568a and 568b of twisted pair are as follows:

Standard 568a: Green-White-1, Green-2, Orange-White-3, Blue-4, Blue-White-5, Orange-6, Brown-White-7, Brown-8.

Standard 568B: Orange-White-1, Orange-2, Green-White-3, Blue-4, Blue-White-5, Green-6, Brown-White-7, Brown-8.

That is, direct line: 568b-568b, 568a-568a, cross line: 568a-568b.

No. There are two types of connections in the international standard:

T586A: Green, Green, Orange White, Blue, Blue White, Orange, Brown White, Brown T586B: Orange White, Orange, Green White, Blue, Blue White, Green, Brown White, Brown If the required network cable is very short, the line sequence you asked can also be made up or used.

Because the crystal head is the data sending +, the -end is the data receiving +, the - end and the two sets of bidirectional data + and -. The twisted degree of the 4 pairs of wires in the twisted pair is different, the physical characteristics are different, and they are not connected according to the specification, and they cannot be used in long-distance and high-speed networks.

It doesn't seem to be, the line sequence is to reduce the interference of the signal, and the commonly used ones are orange, white, orange, green, white, blue, blue, white, green, brown, white, brown, white, white

No bar The network cable sorting is white orange, orange, white green, blue, white blue, green, white brown, brown,

Yes, it is required to correspond correctly to the line

568A standard: green-white, green, orange-white, blue, blue-white, orange, brown-white, brown-white.

568b standard: orange white, orange, green white, blue, blue white, green, brown white, brown.

Some! The kind of gigabit network cable you're talking about!

Hello, it is a pleasure to serve you and provide you with the following answer: The effect of the brown line of the network cable is that it can cause network connection problems, which can affect the performance of the network. Reason:

The brown cable is used to connect network equipment, but its cable structure is different from that of standard network cables, and the cable structure may affect the performance of the network. Workaround:1

Check the network cable: Check whether the network cable is damaged, if it is damaged, you need to replace it with a new network cable. 2.

Replace the network cable: Replace the brown network cable with a standard network cable to ensure the performance of the network. 3.

Check the network device: Check whether the network device is working properly, if not, you need to reconfigure the network lead rolling device. Personal Experience:

The use of brown wires can cause network connection problems, so you should avoid using brown wires as much as possible and use standard network cables instead to ensure network performance.

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.

There are two ways to connect twisted pairs: normal connection and cross-connection.

The normal connection is to press both ends of the twisted pair into the RJ45 crystal head in the order of white orange, orange, white green, blue, white blue, green, white brown and brown (this is the international EIA TIA 568B standard). The network cable made in this method is used to connect the computer to the hub.

The cross-connection is to press one end of the twisted pair into the RJ45 crystal head according to the international standard EIA TIA 568B standard; At the other end, the core wire is pressed into the RJ45 crystal head in the order of white green, green, white orange, blue, white blue, orange, white brown and brown (this is the international EIA TIA 568A standard). The network cable made by this method is used for computer-to-computer connection or hub cascading.