1. Sensor unit [A] (x1, x1, x1)

  2. 2nd vertical transport sensor [B] (Pawls x2)

  3. Sensor unit [C] ( x2, x1, x1)

  4. Vertical exit sensor [D] (Pawls x2)

  5. Sensor unit [E] (x2, x1, x1)

  6. Exit sensor [F] (Pawls x2)