Apc sc450rm1u smart-ups sc 450va 120v – 1u rackmount/tower apcsmart-ups, 280 watts / 450 va,input120v / output120v, interface port db-9 rs-232, rack height 1u. Includes: cd with software, rack mounting brackets, smart ups signalling rs-232 cable, user manual. rack/tower convertible – protects the initial investment in the ups when migrating from tower to rack-mount environment. multiple mounting methods – allows for standardization on one product for use in different environments. front-access servicing – simplifies installation and maintenance while minimizing space requirements. 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 con