Avery Dennison Mobile Work Station (MWS) Monarch 9876 Operating & Maintenance Instructions page 26

Check the connections between the inverter's cables, the batteries and the
inverter's switch as follows:
heavy-gauge red cable assembly to positive (+) on BAT2
heavy-gauge black cable to negative (-) on BAT1
orange cable to pole on switch
orange cable to Remote (RMT) on switch
None of the inverter's cables are attached the terminal block.
4-6 Power Options
Orange, Pole
Switch on the MWS Electrical Panel
Orange, RMT