Hi @tantony, I just registered for this forum so please accept this very, very late response :).
My colleague must have accidentally made a mistake. The fiber optic cable that is supplied with the rack mount does indeed lead the status light to the front of your rack. We felt obliged to do so, so you will have all your connections easy accessible in front of your server, as well as the status of your appliance.
As a side-note - There are also two rack mount kits for the small MS120-8 switches nowadays.