Can either be connected to the drop carriage to fall on the helmet or be
attached to the base to have the helmet fall on it.
The control box has a wire that connects to the impactor, and another one is
connected to the bottom of the headform covered in conductor tape. If the
helmet fails completely and there is direct contact between the impactor and
the headform, the complete circuit will send a signal back to the control box.
The headform will need to be verified for damage and repaired if needed.