Also known as cable head cable connector. After laying the cable, in order to make it a continuous line, the line must be connected to each segment as a whole, these connection points called cable connectors. Cable line in the middle part of the cable connector called intermediate connector, and the line at both ends of the cable connector called a terminal head. Cable connector is used to lock and fixed inlet and outlet, played the role of waterproof and dustproof shockproof.