To allow a connector to be tiltably inserted or withdrawn so as to dispense with a fixing structure of high accuracy without changing a length of a contact for the connector capable of active insertion/withdrawal.

An active connector is equipped with the function of controlling to turn on a contact 6 with a delay of an output signal in inserting a connector 7 and/or controlling to turn off the contact 6 with an advance of the output signal in withdrawing the connector 7 after confirmation whether or not the contacts 6, 8 are contacted. That is, a switching means 2 consisting of a three- terminal element for switching electric conduction of a current channel from On to Off or vice versa is provided in a connector 1 on an integrally insertion side of the contact 8.