The PA-7500 Series firewall supports up to ten AC or DC power supplies. A chassis with low line input voltage (90V, 110/120V, 132V) requires a minimum of eight power supplies while a chassis with high line input voltage (180V, 200/240V, 305V) requires a minimum of four power supplies. The following topics describe how to connect power to a PA-7500 Series firewall. After you power on the firewall, you can View Power Statistics of the PA-7500 Series Firewalls.