Analysis of information sources in references of the Wikipedia article "Type 2 connector" in English language version.
J3068 adopts the European Type 2 coupler, 5 wire with neutral and adds a simple, robust, inexpensive and established datalink: LIN pulse width is the same as 5% PWM, so filters do not change.
Future AC Charging Options… An additional standard (SAE J3068) is under development for higher rates of AC charging using three-phase power, …adapted from the European three-phase charging standards and specified for North American AC grid voltages and requirements.
Reuse of 6mm earth pin of AC connector allows non isolated DC charging or use of one isolation transformer for several vehicles at up to 250A DC
