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The detailed steps of how to make a network cable: We use the peeling function of the network cable pliers to peel off the outer skin of the network cable, and you will see eight metal wires intertwined with each other. Orange, green, blue, brown four colors, and they are intertwined with white orange, white green, white blue, white brown, some slightly orange, some just white, if it is a solid color, you must be careful, do not confuse the four white.
We removed their entanglements separately, noting that the order of placement is: orange, green, blue, brown, white first, blue and green interchangeable. That is to say, the end result is:
White orange, orange, white-green, blue, white-blue, green, white-brown, brown. Once positioned, straighten the cable and use the tangent.
The knife will cut it in line, the usual network pliers of the tangential knife have, be sure to cut it neatly, and then put it flat into the crystal head.
When you can see the neat arrangement of the wires from the front of the crystal head, use the crystal head pressing module of the network cable pliers to squeeze it. This sequence of network cable production is a common Class B network cable production method. If it is a Class A network cable, the order of production is orange and green interchange, become:
White-green, green, white-orange, blue, white-blue, orange, white-brown, and brown direct connections are crystal heads at both ends of the network cable are A or B, if it is a cross line.
then one end is A and the other end is B. The following common situations require direct connection, such as: computer and switch interconnection, switch and router interconnection, if it is computer and computing interconnection, cross wire is required.
The order of connection of the network cable socket only needs to be compared with the color, and there is no need to remember the order. Of course, these network cable production methods are not necessarily used by everyone. Because many network designers usually do not strictly follow this rule, but if they do not follow this rule, the anti-interference and anti-attenuation performance of the network cable will be very poor.
It is recommended that designers strictly follow this order to ensure the optimal operation of the network. Therefore, if we go to repair the network, we must take a good look at the original old crystal head according to what way to make it, we do it in its order, because we only make one end of the crystal head, so according to the existing network cable production order, otherwise, we must open the knife at both ends, and make it again in accordance with the standard. In addition, the length of the network cable should not be greater than 100 meters, because the longer the model, the more severe the attenuation, and the maximum transmission distance of the network cable with a thinner copper core is very limited, and it may not even reach 50 meters.
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Tools: Wire cutters, crystal heads, wire cables, wire strippers or scissors (network cable pliers have a wire stripping function but are not as useful).
Steps: 1. Stripping the wire: Peel off the outer skin of the network cable, peel 2-3 cm, and be careful not to hurt the twisted pair inside.
Otherwise, the copper wire in the network cable is easy to break in repeated twisting. More than six types of wires need to cut off the center cross plastic shaft, and the shielding network cable must be removed;
2. Cable management: After peeling, you will see 4 groups of twisted pairs, and straighten these wires one by one;
3. Sorting: Arrange the straight lines from left to right in the order of white orange, orange, white green, blue, white blue, green, white brown and brown, and use network wire pliers or scissors to build the wire end neatly to ensure that the length of the eight lines is consistent;
4. Hit the crystal head: the copper piece of the crystal head is facing up, and the network cable is still inserted into the crystal head in order from left to right, it is necessary to ensure that the line sequence is not messy after insertion, and the wire head reaches the bottom of the crystal head, insert the crystal head into the punching hole of the network cable pliers, and pinch the pliers hard, and it is best to pinch it several times.
When the network cable is inserted into the crystal head, it is best to plug a small piece of network cable into the crystal head, so the network cable is not easy to be damaged, so pay attention to the reserved length when trimming the network cable, too long network cable skin can not be plugged into the crystal head network cable.
It is easy to be damaged in use, and the network cable is too short to be stuffed to the top of the crystal head, and it is made differently.
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The connection method of the general crystal head.
There are two ways to use network cables, one is to cross cables.
One is parallel lines.
The practice of crossing the line is: 568A standard at one end and 568B standard at the other end.
The practice of parallel lines is: both ends are 568A standard or 568B standard, (generally used is the practice of 568B parallel lines).
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.
You can notice that the difference between the two methods is that the orange and green colors are swapped.
If the two parties to the connection are not equal, use parallel wires, such as a computer connected to a router or switch.
Use crosswires if the two connected devices are equal, such as a PC to a PC.
568a and 568b are the same standard that require the entire link to be the same. The function of each line in the network cable is defined (for example, 1236 lines of data exchange, 45 lines of voice signal reservation). Therefore, the trick of some cheap and inferior network cables on the market is to use copper cores for 1236.
4578 is copper-clad aluminum or iron wire. If this kind of wire wants your company to do this, the 6th core blue wire may use iron wire, which will affect the network data transmission.
Production of 568A and 568B international standard network cables.
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