1800W, Universal Input, Rack mount Front EndsThese front end power supplies have a wide input voltage range and use an IC2 managemnt interface for fan speed control, output voltage adjustment, output current limit setting and remote monitoring of power supply alarms and status indication. A highly efficient thermal design with internal-fan cooling permits use over wide termperature ranges and provides high reliability. The small dimensions of this power supply allow configuration of up to 3 units in a 1 U rack (up to 4500 W). These power supplies have AC and DC connections at the rear, provide for true hot-swap and can be used for redundant system applications. Mounting and interconnection of these power supplies is made easy through the use of FXR-3 racks (see stock numbers 713-3706 (for FXP1500-32G) and 713-3693 (for FXP1800-48G)Wide input voltage range 85-264 Vac Active current/load sharing Power factor corrected (PFC) IC2 interface for status monitoring, power supply enable, fan