We often see the end of the laptop power cord for some cylindrical projections , the average person may not know what it is , in fact, this is the legendary ring . We buy USB cable , I found some online with a protrusion , and some lines without , that looks ugly is of poor quality , the kind of naked singled line . Do not know , some kind of end wrapped cylinder line ( ie, ring ) is a good line. So why should we increase the magnetic rj45 plug it ?
This role from electronic components and magnetic properties of talking about . CPU, motherboard, power and IDE cables inside the computer are in a very high frequency, chassis memory in which a large number of electronic jamming signals , if allowed to interfere with it, it will send the original data is changed, thereby affect the normal transmission of data . Therefore the signals of the spurious electromagnetic interference shielding , it can not affect the transmission of the original data. It is necessary to use a magnetic ring , magnetic power cord can be a good solution to the power lines, signal lines and connectors, high-frequency interference. So what is it the principle of magnetic interference ?
For some reason, such as leakage or static, will host and produce greater power to the voltage difference between this voltage difference at the moment the patch will have a strong impact on current, easy to breakdown components. The magnetic moment can effectively restrain the impact of current , so that the electrostatic slow to be released. And other patch is complete, the device voltage cable ends consistent , this magnetic ring on the role of basically nothing .
In addition, an optional magnetic power cord should also pay more attention to choose the right size according to different use, if the length allows it , you can buy the ring a little longer , so the effect will be better.