Twisted pair production steps

The following introduces the most basic method of making straight-through Category 5 cables. The methods of making other types of network cables are similar. The only difference is that the jumper method is different.

Step 1: Use twisted pair network cable pliers (of course, you can also use other cutting tools) to cut one end of the category 5 twisted pair (it is better to cut a piece of network cable that meets the wiring length requirements), and then insert the cut end Go to the gap where the network cable pliers are used for stripping, and make sure that the network cable cannot be bent.

Step 2: Hold the crimping pliers slightly and rotate it slowly (no need to worry about damaging the core wire inside the network cable, because there is a certain distance between the two stripping blades, which is usually the diameter of the 4 pairs of core wires inside ), let the knife cut the protective rubber of the twisted pair and pull out the rubber. Of course, you can also use a special wire stripping tool to peel off the protective rubber. Note: The stripping length should usually be exactly the length of the crystal head, which can effectively avoid the trouble caused by too long or too short stripping. If the stripped wire is too long, it will be unsightly. On the other hand, because the network cable cannot be jammed by the crystal head, it is easy to loose. It is in good contact with the core wire of the network cable.

Step 3: After stripping the skin, you can see the 4 pairs of 8 core wires of the twisted pair network cable, and you can see that the color of each pair is different. The two core wires of each pair are composed of a core wire dyed in the corresponding color plus a white and white core wire dyed only a little in the corresponding color. The colors of the four full-color core wires are: brown, orange, green, and blue.

Step 4: Untie each pair of cables that are entangled with each other one by one. After unwrapping, arrange and straighten out several sets of cables in sequence according to the rules. When arranging, care should be taken to avoid excessive winding and overlap of the lines. After arranging the cables in sequence and straightening them out, the cables will be bent to a certain extent because the cables were entangled with each other before. You should pull the cables as straight as possible and keep the cables flat. The method of pulling the cable straight is also very simple. Grasp the cable with both hands and then force it in two opposite directions and pull it up and down.

Step 5: After arranging the cables in sequence, straightening and pressing them, you should check them carefully, and then use the cutting edge of the crimping pliers to cut the cable tops neatly.

Step 6: Insert the organized cable into the crystal head. It should be noted that the crystal head has the molding material spring side down and the pin side up, so that the pin end points away from you, and the end with the square hole faces you. At this time, the leftmost foot is the 1st foot, the rightmost foot is the 8th foot, and the rest are arranged in order. When inserting, you need to pay attention to slowly and forcefully insert the 8 cables along the 8 wire grooves in the IU-45 head at the same time, and insert them to the top of the wire groove. Note: When cutting, it should be inserted horizontally, otherwise the cable length will affect the normal contact between the cable and the crystal head. If you have stripped off the protective layer too much before, you can cut the too long thin wire here, leaving the part of the outer protective layer about 15mm, which is just enough to insert the thin wires into their respective wire slots. If this section is left too long, firstly, the crosstalk will be increased because the cables are no longer twisted, and secondly, the cable may fall out of the crystal head because the crystal head cannot press the sheath, resulting in poor contact or even interruption of the line. . Before the last step of crimping, you can check from the top of the crystal head to see if each set of cables is tightly pressed against the end of the crystal head.

Step 7: Crimping. Before the last step of crimping, you can check from the top of the crystal head to see if each set of cables is tightly pressed against the end of the crystal head. After confirming that it is correct, you can insert the crystal head into the 8P slot of the crimping pliers to press the line. After inserting the crystal head, hold the pliers firmly. If you are not strong enough, you can use both hands to press together. This pressing process makes the crystal head All the pins protruding from the outside are pressed into the crystal head, and a slight "pop" is heard after applying force.

Step 8: After crimping, all the pins of the crystal head protruding outside are pressed into the crystal head, and the plastic buckle at the lower part of the crystal head is also pressed against the gray protective layer of the network cable. At this point, the crystal head is finished