Current status: AR3 and control box assembled and wired. Continuity checked. ARCS software acknowledges it is connected to Teensy 3.5 and AT Mega (log files). Test of individual Joints is INOP for all joints (in jog mode). Possible issue: Going through the whole documentation again, we found that we have not wired the Teensy to the 5VDC Supply to robot connector as it is instructed on page 279 of the AR3 documentation. Actually, none of the pictures printed on the Manual shows any wire/jumper plugged into the Vin or upper left GND port of the Teensy, but thos does not estbalish it should not be. We find it a bit odd to connect a jumper from the Vin and GND ports of the Teensy directly to this aviation connector (who is itself connected on one end to the 5DC power supply, via the DIN rail). Our question: should we connect the Teensy directy to this connector, or via the DIN rail? A revised wiring diagram, even hand-sketched, would be appreciated. Thanks you for your kind help.