ZyXEL GS2200-8 User Guide - Page 79

Chapter 8 Basic Setting Table 14 Basic Setting > PoE Status (continued) LABEL Class DESCRIPTION This shows the IEEE 802.3af power classification of the PD. This is a number from 0 to 4, where each value represents a range of power (W) and power current (mA) that the PD requires to function. The ranges are as follows. PD Priority • Class 0 - Default, 0.44 to 12.94 • Class 1 - Optional, 0.44 to 3.84 • Class 2 - Optional , 3.84 to 6.49 • Class 3 - Optional, 6.49 to 12.95 • Class 4 - Reserved (PSEs classify as Class 0) in a Switch that supports IEEE 802.3af only. Optional, 12.95 to 25.50 in a Switch that supports IEEE 802.3at. When the total power requested by the PDs exceeds the total PoE power budget on the Switch, you can set the PD priority to allow the Switch to provide power to ports with higher priority first. Consuming Power (mW) Max Power (mW) Max Current (mA) • Critical has the highest priority. • High has the Switch assign power to the port after all critical priority ports are served. • Low has the Switch assign power to the port after all critical and high priority ports are served. This field displays the current amount of power consumed by the PD from the Switch on this port. This field displays the maximum amount of power the PD could use from the Switch on this port. This field displays the maximum amount of current drawn by the PD from the Switch on this port. 8.8.1 PoE Setup Use this screen to set the priority levels for the Switch in distributing power to PDs. GS2200-8/24 User's Guide 79