Connector, generally refers to an electrical connector. That is, a device that connects two active devices to transmit current or signals. Connectors are components that our electronic engineering technicians often come into contact with. Its role is very simple: blocking or isolating communication between circuits in a bridge circuit allows current to flow, allowing the circuit to perform its intended function. Connectors are an integral part of electronic devices. When you look at the path through which the current flows, you can always find one or more connectors. The form and structure of the connector is constantly changing. There are various types of connectors depending on the application object, frequency, power and application environment. For example, connectors for lighting on a stadium and connectors for hard drives and connectors for igniting rockets are quite different. But no matter what kind of connector, you must ensure a smooth continuous current. In general, the connection of the connector is not limited to current. In today's rapid development of optoelectronic technology, in optical fiber systems, the carrier for transmitting signals is light, glass and plastic replace the wires in ordinary circuits, but optical signal connectors are also used for vias, and their functions and circuit connectors the same.