Tripp Lite's SmartOnline SU1500XL Extended Run Double-Conversion UPS Tower protects critical server, networking or telecommunications equipment from blackouts, brownouts, voltage fluctuations and surges. This large-capacity 1.5-kilo-volt-ampere/1,200 watt UPS continuously converts incoming AC to DC, then back to perfect sine wave AC output at 120-volts AC (2%). It removes harmonic distortion, fast electrical impulses, frequency fluctuations and other hard-to-solve power problems not addressed by other UPS systems. True sine wave output and zero transfer time provides guaranteed compatibility with all equipment types. It features highly efficient operation in the optional economy mode setting, saving BTU heat output and energy costs. It includes 6 UPS-supported outlets. 2 load banks, each with 3 outlets, can be independently controlled via software interface to selectively reboot remote equipment or automatically shed less critical loads to extend battery runtime for the most critical equipment. Battery backup time can be extended with the addition of multiple external battery packs. It includes a slot for network management card options, plus DB9 enhanced serial monitoring port for unattended shutdown, remote control and monitoring of UPS system and power data. The HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X. Tripp Lite's PowerAlert UPS Management Software is available via free download. It is also compatible with Tripp Lite's Watchdog Service Monitoring/Rebooting Software. It comes in an attractive all-black upright tower format and is protected by $250,000 Ultimate Lifetime insurance (U.S., Canada, and Puerto Rico only).