A connector which is capable of accommodating displacement between objects to be connected, and prevents an operation force required in connecting the connector and the objects and the amount of deformation of the contacts from becoming too large. The control and monitoring modules are capable of assessing the consistency of the signals processed therein and of controlling accordingly a power supply and disabling module of the actuator. A password associated with the username is encrypted. The wiring substrate has a coefficient of linear expansion of 13 ppmK or less in all directions.