APCSmart-UPS, 450 Watts / 700 VA,Input120V / Output120V, Interface Port DB-9 RS-232. Includes: CD with software, Smart UPS signalling RS-232 cable, User Manual. Boost and Trim Automatic Voltage Regulation (AVR) - Gives higher application availability by correcting low and high voltage conditions without using the battery.Intelligent battery management - Maximizes battery performance, life, and reliability through intelligent, precision charging.Power conditioning - Protects connected loads from surges, spikes, lightning, and other power disturbances.Temperature-compensated battery charging - Prolongs battery life by regulating the charge voltage according to battery temperature.Automatic restart of loads after UPS shutdown - Automatically starts up the connected equipment upon the return of utility power.Automatic self-test - Periodic battery self-test ensures early detection of a battery that needs to be replaced.Cold-start capable - Provides temporary battery power when the utility power is out.Disconnected battery notification - Warns when a battery is not available to provide backup power.Network manageable - Provides remote management of the UPS over the network.Audible alarms - Actively let you know if the unit is on battery, if the battery is low or if there is an overload condition.LED status indicators - Quickly understand unit and power status with visual indicators.Serial Connectivity - Provides management of the UPS via a serial port.USB connectivity - Provides management of the UPS via a USB port (not available on all models).Disconnected battery notification - Warns when a battery is not available to provide backup power.User-replaceable batteries - Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)Hot-swappable batteries - Ensures clean, uninterrupted power to protected equipment while batteries are being replacedPredictive failure notification - Provides early-warning fault analysis ensuring proactive component replacement.Resettable circuit breakers - Enables a quick recovery from overload events.Adjustable voltage-transfer points - Maximizes useful battery life by widening the input voltage window or tightening the output voltage regulation.Adjustable voltage sensitivity - Provides the ability to adapt the UPS for optimal performance in specific power environments or generator applications.Field-replaceable power distribution panel - Ensures compatibility with equipment that has different plug types.Safety-agency approved - Ensures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment. UL, FCC, CE, C-Tick approvals.