The production process of the USB connection cable of the electronic connection harness

First, the application of diagonal wrong cut the required length of twisted pair, at least 0.6 meters, more than 100 meters. Then apply the twisted pair cable stripper to remove the outer skin of the twisted pair cable by 2-3 centimeters. Some twisted-pair cables contain a tender nylon cord that can be burned with a lighter or carefully cut off. If you are stripping the outer skin of the twisted-pair cable, the feeling that the exposed part is too short, and obscure the manufacture of RJ-45 connectors, you can hold the twisted-pair cable outer skin, and then pinch the nylon cord to the lower part of the skin peeled off, you can get a longer exposed line; with a barrier can only be peeled again. Second, USB connecting cable stripping completed after the twisted pair cable. Third, the next step is to carry out the operation of dialing the cable. The exposed twisted-pair cable in the orange pair of lines dialed to my front, the brown pair of lines dialed to my bias, the green pair of lines peeled to the left, the blue pair of lines peeled to the right. Wiring order: top: orange left: green bottom: brown right: blue. Fourth, the green pair of wires and blue pair of wires in the center position, while the orange pair of wires and brown pair of wires to adhere to the immobile, wiring order, left one: orange left two: blue left three: green left four: brown. Fifth, carefully peel off each pair of wires, white mixed line toward the front. As we are in compliance with the EIA / TIA 568B specifications to manufacture the connector, so the pair of wire color is necessarily next to each other. Six, the exposed twisted-pair cable with hinged or diagonal pliers cut down only about 14mm in length, the reason for leaving this length is to comply with the EIA / TIA specifications, you can refer to the RJ-45 connector and twisted-pair cable manufacturing specifications of the introduction. After the twisted pair of each line in order into the RJ-45 connector pins, only the pin should be put in the white-orange line, and so on.

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