"Tripp Lite's SMART1500LCDXL Line-Interactive UPS System offers network-grade voltage regulation, surge suppression and long-lasting battery support, ideal for network equipment, phone systems, desktop PCs and home entertainment systems. Uninterruptible Power Supply / UPS system provides battery derived AC output to maintain continuous operation of connected equipment without data-loss during power failures and severe voltage fluctuations. Runtime is expandable with one additional BP24V15RT2U external battery pack. Interactive LCD display offers detailed site voltage and UPS status information, plus a variety of UPS control options. High 97% efficient line power mode operation offers reduced UPS energy consumption and BTU heat output. Automatic Voltage Regulation / AVR circuits boost brownouts and reduce overvoltages from 75V to 147V to safe 120V nominal levels without using battery power. Included mounting accessories enable 2U horizontal rackmount installation in 2 and 4 post racks or upright tower installation. Built-in USB and DB9 serial port enables optional unattended system shutdown in case of extended power failure using PowerAlert UPS management software. HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X. Built-in data line surge suppression jacks offer protection for equipment with single-line dialup, DSL or network Ethernet connection.- SMART1500LCDXL Line Interactive UPS offers network-grade voltage regulation, surge suppression and long lasting battery support- Space-saving angled NEMA 5-15P input plug; 6ft / 1.8m line cord- 8 battery-supported NEMA 5-15R outlets- Maintains operation of connected equipment during power failures and voltage fluctuations- Runtime is expandable with one additional BP24V15RT2U external battery pack- LCD display reports numeric and icon-based UPS status and site power data- Select and scroll buttons enable access to UPS control, operating and LCD display settings- Numeric display reports Input Voltage, Output Voltage, Battery Charge Percentage, Output Load Percentage, Output Load Wattage and Estimated Minutes Runtime data- Icon-based display items include 5 ""bar"" battery capacity, UPS operating status, replace battery and voltage regulation status- Control-mode LCD options enable external battery configuration, alarm on/off control, self-test and LCD brightness- Front-panel LCD screen rotates for horizontal or vertical installation options- 97% line power mode efficiency operation- Line Interactive Automatic Voltage Regulation / AVR circuits correct brownouts and overvoltages from 75 to 147V- Included mounting accessories for 2U rackmount and tower installation- USB and DB9 serial ports enable optional unattended system shutdown using PowerAlert UPS management software available via free download- HID-compliant USB interface enable integration with built-in power management and auto shutdown features of Windows and Mac OS X- DB9 serial port also supports contact closure signaling for on-battery and power-restored messaging- Built-in data line surge suppression jacks offer protection for equipment with single-line dialup or PoE compatible network ethernet connection"