The invention provides a connector, comprising a plugging piece and a plugging wire. The plugging wire comprises a lead and a plugging wire terminal at one end of the lead. The plugging piece comprises a plurality of plugging holes, with each plugging hole being corresponding to one signal point. The plugging wire terminal is inserted in the plugging hole. The connector is advantageous in that signal transmission can be realized through inserting the plugging wire terminal in the plugging hole corresponding to the signal point; as each plugging wire has independent lead and plugging wire terminal, when the fault of the plugging wire occurs and needs to be replaced, it is required to only replace the corresponding plugging wire, and the other plugging wires can still be used; resources canbe saved, waste can be reduced, and cost can be decreased.