LevelOne IES-0852 Manual - Page 15

High Power PoE Operation This Industrial Web-Smart PoE & High Power PoE Ethernet switch is compliant with the 802.3af and 802.3at High Power standard, providing 30W of pure power to power demanding devices such as pan-tilt-zoom (PTZ) network cameras, wireless access bridge/routers and large-screen network video phones et cetera. This 802.3af High Power switch s PoE operation with 802.3at based PD is highly versatile and adaptable. Normally, when an 802.3at PD is connected to an 802.3af High Power compliant switch, the switch will detect that the PD s power requirement is based on class 4 classification outlined in the IEEE802.3at standard, and only attempt to provide 15.4W of power, which is insufficient to power a 30W 802.3at PD. This is due to the reason that the 30W of power in 802.3af High Power is classified as class 0. However, this 802.3af High Power switch can support 30W 802.3at PD by setting the switch explicitly to provide a fixed rate of 30W power to 30W 802.3at PD. Power limit by classification: Uncheck Power limit by classification to disable Port 1 ~ Port 4 to provide power to 30W 802.3at PD according to classification of maximum power range used by PD. Fixed power limit(W): C Fixed power limit(W) and type a new fixed power limit 30W for Port 1 ~ Port 4 to provide power to 30W 802.3at PD. OK: OK button to update your settings. IES-0852 User Manual Page 15