coax to twisted pair

program to print the reproduce because it calls the printname method on the new twisted ("reproduce") instance, this instance transmits the string "reproduce" to its super-class constructor to store it in its name domain. The printname method calls the name method. The name method returns the content of the Name field. However, if you run this program, you will find that it prints main. The question now is why does it do such a thing? The reason behi

The preferred LAN cabling system is the twisted pair cable system. Among them, the mainstream choice is a system with over 5 categories or higher performance. For cabling systems, the most basic test conducted by the installer is to use the connectivity tester to verify the end-to-end connection of the link. These testers provide complete wiring diagram tests, using TDR technology to measure the length and

The wireless AP uses POE switch power supply, fault performance is unable to access the Internet via the AP, the corresponding Ethernet port on the POE switch after the restart of the yellow light flashes a few seconds after the flashing, the green lights are not lit; At first thought is the AP fault, after the fault has not been ruled out, the network cable unplugged after plugging in a common switch, the other end connected to the notebook computer, found no network connection, the determinat

When testing the twisted pair cable, the possible problems are: the near-end crosstalk is not passed, the attenuation is not passed, the wiring diagram is not passed, and the length is not passed: 1. Causes of inpass of near-end crosstalk may be: 1) there is a problem with the endpoint; 2) Short Circuit at the remote connection point; 3) string pairs; 4) External Noise; 5) The performance of link cabl

When the twisted pair cable is tested, the problems may arise: the near-end crosstalk fails, the attenuation fails, the wiring diagram fails, the length fails, and the following are described separately: 1. The reasons for the failure of the near-end crosstalk may include: 1 There is a problem with the near-end connection point; 2) Remote connection point short circuit; 3) string pairs; 4 external nois