標題: PoE 知識小測驗二：下面哪一項不是PSE的功能 [打印本頁] 作者: chip123 時間: 2008-8-7 08:21 AM 標題: PoE 知識小測驗二：下面哪一項不是PSE的功能 乙太網供電系統包括供電設備（PSE）和用電設備（PD），下面哪一項不是PSE的功能？作者: Jasonc1205 時間: 2009-4-15 10:02 AM
以下是PSE-QD及PSE-HQD的幾個主要重要特色： - G$ P; O9 N# A6 x: Z: x% C* g� IEEE802.3af compliant. 5 [' P M( D: T0 L/ U2 ]� Per Port maximum output – PSE-QD, 450mA; PSE-HQD, 650mA. 1 }+ {5 {1 G' r1 ~� PSE-HQD supports high power mode and backward compatible to normal power mode. ' j7 y" d8 ^9 {& s! K6 o
� Support DC disconnection. ! {6 x; @' f g% S& C5 {� Maximum total power protection.8 e, w% ^7 [9 }' \
� Support PD power classification from class 0 to class 4. 2 Q2 E# P' M2 B1 ]� Per port over/under voltage protection. ( b' q$ ^5 d- B( N, k$ l' m8 w( y� Per port short circuit protection. Y {& _( b# e! M# `" `� Per port over current protection. " D% H$ Q. `! ~4 [6 ^* K* T� Thermal cut off.! K* m* ^% E/ W: m V
� Equip common mode choke (per port) to reduce EMI. # C6 W4 }+ Z# f+ c" Z� Enhance current surge protection. % y. u! G+ H( h2 I H� Per port PSE status indication.