Install the PA-400R Series Firewall on a Flat Surface
Install a PA-400R Series firewall on a flat surface such as a desk or shelf.
The PA-450R and PA-450R-5G firewalls have four circular
feet on their bottom side that can be used to install the device in a horizontal
position.
Keep the device clean and clear of dust to ensure
optimal heat dissipation and maintain proper hardware operation.