Hey Choice;
Nice score on the Novakon. The BOB pictured is the old style that has been updated but it should still work. The Molex connector is the main power from the computer power supply. Don't know why it has the jumper wires on it. Go to the Novakon site and download a copy of the power drawbar manual. In the back of the instruction manual, they have a picture of the BOB with all the connectors labeled. You should be able to figure it out.
The unit is powered on by pressing the button on the black panel with the power switches on it (if it works like my pro) which starts the computer and latches in the power. To power down, just shut down the control computer.. Also, give John a call at Novakon. He has always been very helpful.
Good Luck.
Bill