The PET2000-12-074xD is a 2000 Watt DC to DC power supply that converts -40 to -72 VDC voltage into an isolated main output of +12 VDC for powering intermediate bus architectures (IBA) in high performance and reliability servers, routers, and network switches. The PET2000-12-074xD utilizes full digital control architecture for greater efficiency, control, and functionality. This power supply meets international safety standards. Best-in-class, Platinum equivalent efficiency Wide input voltage range: -40 to -72 VDC Always-On 12 V / 3 A / 36 W standby output Hot-plug capable Parallel operation with active current sharing Full digital controls for improved performance 3 High density design: 42.1 W/in Small form factor: 265 x 73.5 x 40.0 mm (10.43 x 2.89 x 1.57 in) Power Management Bus communication protocol for control, programming and monitoring Status LED with fault signaling Networking Switches Servers & Routers Telecommunications 2 PET2000-12-074xD 1. PET 2000 - 12 - 074 x D x Product Family Power Level Dash V1 Output Dash Width Airflow Input DC Inlet - - - Black, 6 AWG (C10-747100) * 1 N: Normal PET Front-Ends 2000 W 12 V 74 mm D: DC K - Black, 4 AWG (C10-747442) 2 R: Reverse Y - Grey, 6 AWG (C10-638974) 1 N Normal Airflow (NAF) from Output connector to Input DC Inlet. 2 R Reverse Airflow (RAF) from Input DC Inlet to Output connector. * Default option no suffix needed. Input plug with wire: Amphenol CR-302001-257 2. The PET2000-12-074xD DC-DC power supply is a fully DSP controlled, highly efficient front-end power supply. It incorporates state- of-the art technology and uses an interleaved forward converter topology with active clamp and synchronous rectification to reduce component stresses, thus providing increased system reliability and very high efficiency. With a wide input DC voltage range the PET2000-12-074xD maximizes power availability in demanding server, network, and other high availability applications. The supply is fan cooled and ideally suited for integration with a matching airflow path. An active OR-ing device on the output ensures no reverse load current and renders the supply ideally suited for operation in redundant power systems. The always-on standby output provides power to external power distribution and management controllers. It is protected with an active OR-ing device for maximum reliability. Status information is provided with a front-panel LED. In addition, the power supply can be controlled and the fan speed set via the 2 2 I C bus. The I C bus allows full monitoring of the supply, including input and output voltage, current, power, and inside temperatures. Cooling is managed by a fan controlled by the DSP controller. The fan speed is adjusted automatically depending on the actual 2 power demand and supply temperature and can be overridden through the I C bus. Figure 1. Block Diagram tech.support psbel.com