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The current boards are all jumper-free, so you don't have to learn it.
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The jumper is actually a metal wire connecting the two demand points of the circuit board (PCB), due to different product designs, the jumper uses different materials and thicknesses.
Most of the jumpers are used for the same potential voltage transmission, and there are also reference voltages for protection circuits, and for those with precision voltage requirements, the voltage drop generated by a little metal jumper will also have a great impact on product performance.
For jumpers, an important performance is the performance problem when bending, because the UTP twisted pair is generally a solid core, so it is poor in terms of manageable performance. First, the cable is relatively hard, which is not conducive to bending, and the second is that the solid core cable will have obvious return loss when bending, resulting in the performance of the cable declining, so there are clear requirements for the bending radius of the solid core cable.
1. The jumper is different from the ordinary horizontal cable, and the middle is a multi-core flexible wire, so it is easy to bend, convenient to jumper in different positions, and is also suitable for frequently changing environments.
2. The terminal jumper is a cable connected to the terminal from the information point on the wall, which can be used in the management area, and the multi-core flexible wire will not break after many rolls.
3. Multi-core flexible wire is not as good as single-core copper cable in terms of transmission quality, so the total length of jumper in the same channel in the integrated wiring system shall not be greater than 10 meters.
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1. The jumper is: it is the connection line that connects the demand points of two devices. For example, the connection network cable between the switch and the switch can be called a jumper.
2. The "jumper" of the board card in the computer is a small metal stick (jumper post) embedded in the motherboard, sound card, hard disk and other equipment, as well as the set on these metal sticks. Changing from left to right or from right to left is called a jumper, 3 needles have a cap on it, and the cap can only be set with 2 pins! This is in layman's terms.
Small metal sticks (jumper posts) on sound cards, hard disks, and other equipment, and small clips (jumper clips) attached to these metal sticks.
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The concept of a jumperJumpers are actually metal wires that connect the two demand points of the circuit board.
Jumper is a copper cable, made of standard jumper cable and connection hardware, jumper cable has two to eight copper cores, and the connection hardware is two 6-position or 8-position module plugs.
The reason for this is called a jumperFrom the appearance, it is a small metal stick embedded in the motherboard, sound card, hard disk and other equipment, and a small clip set on these metal sticks, so it is called a "jumper".
Features of fiber optic patch cords1. Low insertion loss.
2. Good repeatability.
3. Large return loss.
4. Good interplugging performance.
5. Good temperature stability.
6. Strong tensile performance.
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Jumpers are made up of pins (that is, pins) on the motherboard, and also include one or more shorts to connect the pins. The most commonly used example, the CMOS jumper is used to clear the data of the CMOS chip, generally 3 pins, when using, pull out the short connector from two of the pins and connect the other two, and then reset to clear the CMOS data. Of course, some jumpers have multiple pins and multiple shorts, and their connections to different pins have different effects.
Jumpers also refer to short-distance connecting wires, similar to flying wires.
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