* '''Mirror cover motor''': on the East side of the telescope below the primary mirror is a button to open/close the primary mirror covers.
* '''Acquisition/guider box and autoguider camera''': the former is a large black box mounted directly below the primary mirror cell. The XY-slides and acquisition/autoguider camera are mounted on the South side of the guider box.
* '''TCS Merlin crate''': above the autoguider camera is a small blue electronics crate. This is the Merlin transputer for the TCS. On the side is a red reset button that should be pressed if the TCS encounters a "Merlin error".
* '''Filter wheels''': The blue metallic box below the acquisition/guider box contains the filter wheel(s), labelled on the