In circuit diagrams and on PCBs, GND (Ground) represents the common reference point or 0V line. It serves as the return path for electrical current and is often referred to as the ground. PCB grounding involves connecting all ground wires to a shared ground plane. There are various methods to connect the ground of different circuits to the ground plane. Below are some examples and techniques that can help you understand better!
Optical fiber connector is a detachable (movable) connection device between optical fiber and optical fiber. It connects the two end faces of optical fiber precisely, so that the optical energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its involvement in the optical link can be minimized. This is the basic requirement of optical fiber connector. To a certain extent, optical fiber connectors affect the reliability and performance of optical transmission systems.
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