Pass Through Autoclave

Please give me a brief outline of the standard central sterile services department (CSSD) layout and how that affects how autoclaves are used. What effect would having a pass through autoclave have on the standard method?

Following the success of the Double Door GS autoclave we are introducing the Single Door GS Autoclave. Available in 160 liter volume and 250 liter volume (1 StU and 2 StU, respectively), the GS autoclaves are designed to be more affordable for medical centers that require single door installations or double door pass-through installations, but are operating on limited budgets.