While the SF1's primary function is to monitor and control a PUP network, it also acts as a network administrator for other PUP units, and it can interface with high-level American Auto-Matrix^® (AAM) products like the SAGE^MAX area controllers through a PHP connection. The SF1 is able to network with other full PUP administrators-like the AAM SOLOTool, SAGE^MAX, DX1, and GX1-in a peer relationship. Network security is provided by the SF1's four levels of user access that limit control functions to authorized users. And the SF1 supports the easy-to-use color graphics host Auto-Pilot^TM through the PHP connection.