Signaling circuit for the SAE J1772 standard.
Own work, redrawn from raster source J1772 signaling circuit.gif, http://www.fveaa.org/fb/j1772description%5B1%5D_272.pdf, and http://www.fveaa.org/fb/FCI_Power-S3-SAE-J1772-Charge-plug-2010-06_276.pdf
Mliu92