Green modePatent-pending operating mode that bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection.Battery failure notificationProvides early-warning fault analysis on batteries enabling timely preventive maintenancePower-saving outletsAutomatically cuts power to idle equipment to conserve electricity.Resettable circuit breakerEasy recovery from overloads; no need to replace a fuse.Battery-protected and surge-only outletsReserves power capacity and run time for connected equipment that require battery back-up while providing surge only protection for less critical equipmentCold-start capableProvides temporary battery power when the utility power is out.Serial ConnectivityUse 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.Hot-swappable batteriesEnsures clean, uninterrupted power to protected equipment while batteries are being replacedDisconnected battery notificationWarns when a battery is not available to provide backup power.Dataline Surge ProtectionProvides protection of connected equipment from power surges on the data lines.Automatic self-testPeriodic battery self-test ensures early detection of a battery that needs to be replaced.Adjustable voltage-transfer pointsMaximizes useful battery life by widening the input voltage window or tightening the output voltage regulation.Adjustable voltage sensitivityProvides the ability to adapt the UPS for optimal performance in specific power environments or generator applications.Audible alarmsProvides notification of changing utility power and UPS conditions.User-replaceable batteriesIncreases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR)USB connectivityProvides management of the UPS via a USB port (not available on all models).Serial ConnectivityProvides management of the UPS via a serial port.Transformer-block spaced outletsProtect equipment with input transformer blocks without blocking access to other receptacles.Boost and Trim Automatic Voltage Regulation (AVR)Gives higher application availability by correcting low and high voltage conditions without using the battery.Intelligent battery managementMaximizes battery performance, life, and reliability through intelligent, precision charging.Safety-agency approvedEnsures the product has been tested and approved to work safely with the connected service provider equipment and within the specified environment.Building Wiring Fault IndicatorThis LED informs users of potentially dangerous wiring problems in the wall circuit.Adjustable voltage sensitivityProvides the ability to adapt the Power Conditioner for optimal performance in specific power environments or generator applications.Battery replacement without toolsAllows quick, easy battery replacement.LCD graphics displayText and mimic diagrams that display modes of operation, system parameters and alarms.