Can either be attached 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 head form covered in conductor tape. If the
helmet fails completely and there is direct contact between the impactor and
the head form, the complete circuit will send a signal back to the control box.
The head form will need to be verified for damage and repaired if needed.