PoE 知識小測驗二：下面哪一項不是PSE的功能

chip123

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？

Jasonc1205

以下是PSE-QD及PSE-HQD的幾個主要重要特色：
� IEEE802.3af compliant.
� Per Port maximum output – PSE-QD, 450mA; PSE-HQD, 650mA.
" X6 H; B4 B% e: K5 d� PSE-HQD supports high power mode and backward compatible to normal power mode.
� Support DC disconnection.
$ X! d' m! u) z+ v7 j% I$ c2 L' j� Maximum total power protection.
� Support PD power classification from class 0 to class 4.
� Per port over/under voltage protection.
� Per port short circuit protection.
� Per port over current protection.
' T) L4 H! j0 J� Thermal cut off.
6 O* s- O2 L. {0 }8 d8 k9 U& Y� Equip common mode choke (per port) to reduce EMI.
2 R+ |& y" ~8 ]2 Q� Enhance current surge protection.
� Per port PSE status indication.