The control box is used for operation of the GPU, if the GPU is placed away from the aircraft parking position (or placed under a bridge). Beside the display from which all relevant information can be obtained, the control box is equipped with the following instrumentation:

Push buttons / indication lamps for

• Start / Reset
• Stop
• 400 Hz On
• Mains Lamp test
• Cable hoist Up/Down

The control unit of the GPU can only communicate with one display at a time. Should you want to use the display on the GPU instead of the one in the control box, you should connect the control cable X8 to the plug of the Display Module (A10) The control box is supplied with 25 m of control cable.