PowerDsine IEEE802.3 manual 802.3af modular installed base considerations

802.3af modular installed base considerations

„802.3af minimum PSE voltage: 44V

„Modular switches

–44V power supply is deployed with chassis

–Customer expectation: 802.3at-blades added to 802.3af-chassis

–51V minimum at PSE Æ Boost converter MUST be placed on blade

„More power dissipation at blade

„More components added to crowded blade

www.PowerDsine.com PowerDsine Presentation October 2005 Page 17