In developing j1772 evses charging stations it s often helpful to analyze the state of the pilot line as well as exercise the evse by simulating a vehicle requesting state changes. If you have a 240vac charger in your ev and want to connect to a j1772 charging station you can use the j1772 adapter box to charge your ev. Sae j1772 iec type 1 also known as a j plug is a north american standard for electrical connectors for electric vehicles maintained by the sae international and has the formal title sae surface vehicle recommended practice j1772 sae electric vehicle conductive charge coupler.