APC Back-UPS CS, 300 Watts / 500 VA,Input 230V / Output 230V, Interface Port DB-9 RS-232, USB
CD with software, Documentation CD, Qty 1 - Detachable 1.2 m IEC power cord, Qty 1 - Detachable 1.8 m IEC power cord, Telephone Cable, USB cable, Warranty card
Serial Connectivity Use any Home Automation network to monitor and control the S20 through its RS-232 serial port. For information on how to communicate with the S20, see APC's Application Note #102. Crestron and AMX installers should visit their respective websites for information on how to integrate the S20 into those networks.USB connectivity Provides management of the UPS via a USB port (not available on all models).Serial Connectivity Provides management of the UPS via a serial port.