Homemade USB extension cable with network cable
1, the choice of network cable. If you need to create a long length of extension cable, the material of the cable is required, as follows:
1 Use a multimeter test. Shave the network cable and use the two ends of the test leads to touch both ends of the same color wire to test connectivity. If it is unclear, there is a disconnection in the middle of the network cable.
2 Use magnet detection. Is to cut a little network cable line (half the length of rice), use a magnet to suck it, see if it can suck up, if you can smoke it up to indicate that the cable is iron or copper-clad iron, this cable to do a longer extension The line is not good.
3 The hardness of the network cable. If the network texture is relatively hard, it is also good to satisfy the above two conditions.
2, to prepare a USB male and female, if there is no separate USB head, you can use a 1 to 2 meters of USB extension cable to change, leaving only the USB connector on it.
3, network cable connector, the two popular USB extension cable connection method is: 3-1-1-3 and 2-2-2-2. It is recommended to use a 3-1-1-3 connection. Two 3s are the positive and the ground, and two 1s are the D+ and D-. In order to stabilize the power supply
4, after the completion of welding, do not immediately plug in the computer and plug in the USB device, you must first use a multimeter to test the extension of the two ends of the USB interface pin on and off to ensure that the connection is not connected wrong and short circuit.
prompt:
1. When you plan to open the copper wire of the network cable, first measure the length to be reserved and the length of the solder joint of the USB connector. Do not leak too much copper, avoid touching, and short-circuit the computer or device.
2, when the positive and the ground is connected to the three lines, you can use a needle-nose pliers to twist it like twist twist together, this is relatively stable, when the solder wire can add a little tin, so more stable.
Note: During the production process, pay attention to safety and avoid scratching the tool and scalding iron.
Send your message to us:
Post time: Jun-05-2018