Connector

A connector comprising:

• a housing that includes an insertion recessed portion configured to receive a substrate being inserted into the insertion recessed portion;
• a contact point member that includes a contact point portion, the contact point portion being connected electrically to a conductive portion of the substrate when the substrate is fully inserted into the insertion recessed portion, the contact point member being installed in the housing, the contact point portion protruding into the insertion recessed portion;
• and
• a position determining member configured to move the contact point member, wherein as the substrate is being inserted into the insertion recessed portion of the housing, the contact point portion is moved by said position determining member so as to be retracted from the insertion recessed portion, and then is moved by said position determining member so as to protrude into the insertion recessed portion to make an electrical connection to the conductive portion of the substrate when the substrate is fully inserted into the insertion recessed portion,
• wherein a rotation state of the position determining member is observable from a location external to the housing.