Perhaps the answer depends on what else is happening in the drawing but, bearing in mind that SD7 is not a 3D application, there isn't really a concept of Front AND Rear AND Top AND Bottom. With what has been described so far I would simply think of it as there being a control plane (front) and a connection plane (rear) and if you're just looking at the rack, the Front plane is effectively the Top view and the Rear plane is effectively the Bottom view.
I hope this makes sense and is helpful.