Powerdsine IEEE802.3 Manual de usuario descargar pdf (Pagina 17)

PowerDsine Presentation October 2005 Page 17

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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

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Powerdsine IEEE802.3 Manual de usuario Pagina 17