Diagnostic receptacle for electric vehicle supply equipment

Electric vehicle supply equipment, comprising:

• a control box comprising control electronics configured to control whether current passes through a plurality of power lines;
• a connector comprising a first end and a second end, the second end being configured to connect to an inlet of an electric vehicle;
• a cable extending from a first part of the control box to a first end of the connector and comprising the plurality of power lines, wherein the plurality of power lines are configured to connect to an electric power source and provide electricity through the cable to the first end of the connector to supply electric power to an electric vehicle;
• a receptacle located on a second part of the control box and configured to electrically connect to the connector through the second end of the connector;
• and
• a diagnostic unit configured to perform a diagnostic test on a particular conductor within the connector when the connector is electrically connected to the receptacle.

Electric vehicle supply equipment, comprising:

• a control box comprising control electronics configured to control whether current passes through a plurality of power lines, the plurality of power lines configured to supply electric power to an electric vehicle, each of the power lines having a first end electrically coupled to an electric power source;
• a connector comprising a first end and a second end, the second end being configured to electrically connect a second end of each of the plurality of power lines to an electric vehicle;
• a cable extending from a first part of the control box to a first end of the connector;
• a receptacle located on a second part of the control box and configured to directly and electrically connect to the second end of the connector;
• and
• a diagnostic unit electrically connected to the receptacle and configured to perform a diagnostic test on a particular conductor within the connector when the connector is electrically connected to the receptacle,
• wherein the particular conductor comprises any one of a plurality of conductors accessible via the receptacle, the plurality of conductors comprising the plurality of power lines, a proximity line, a control pilot line, and a ground line.