Uninterruptable Power Supply, Approximately 2200VA/1600W, Rack Mount with extendable Run Time. Unit must incorporate hot user swappable batteries and must have an overload indicator, replace battery indicator, audible alarm, automatic voltage regulation and include Smart Slot card and software. It must use RS232 DB-9 interface for communication. NEMA L5-30P power connector, and (8) NEMA 5-15R outlets.