R-92 Wallbox Models W40, W80 and W120 – Service Manual 48 Pages.  Covers steppers S-40 S-80 and S-120, these are most popular used in AMI F40 F80 F120 G80 G120. Also used in D80 E40 E80 E120.  Note the G200 did not have a stepper the W120 can send it it but the WQ200 was the wallbox designed for it.