Of course I have no way of knowing which version of the standard your EVSE follows ... I semi-purposely quoted "1996" to draw a bigger distinction between OLD and NEW and 2001 and 2010 could cause misinterpretation for dyslexically challenged readers
(just kidding on that last part).
The 2001 replaced an OCT1996 version. See here: http://bzwxw.com/soft/UploadSoft/new5/S ... 2-2001.pdf
(upper right corner)
Oh ... and look on page 11/32, section 5.4
( I have not taken time to read the whole doc ... remember it's the 2001 version. )
And there is Gary's circuit on page 8, section 5.1
Nice find by the way.
Well I made the simple circuit and hooked it up to the EVSE and, drum roll please, it worked exactly as expected. So there is still a mystery to me as to what is going on behind the scenes between the EVSE and the LEAF. Hopefully the folks at Clipper Creek will know exactly what is happening otherwise I suspect I am going to need a copy of the J1772-2010 spec and an oscilloscope to even begin to figure this out.
One thing I did happen to notice is that when a timer is set on the LEAF and I plug the connecter into the LEAF while the EVSE has power and the LEAF goes through that cycle that triggers the EVSE to close the relays and then open them again the LEAF no longer thinks the EVSE is connected. The LEAF does show its plugged in however. I have also noticed that the LEAF will be in that same state after a successful charge in that the LEAF shows that it is no longer connected to the EVSE but still plugged in.