ZyXEL Communications GS2220-10, Руководство пользователя, Страница: 467 / 556

Chapter 60 Port
GS2220 Series User’s Guide
467
60.3 PoE Setup
Use this screen to set the PoE power management mode, priority levels, power-up mode and the
maximum amount of power for the connected PDs.
Click Port > PoE Setup > PoE Setup , the following screen opens.
Figure 354 Port > PoE Setup > PoE Setup
Class This shows the power classification of the PD. Each PD has a specified maximum power that fall
under one of the classes.
The Class is a number from 0 to 4, where each value represents the range of power that the
Switch provides to the PD.
Each class corresponds to a default maximum power that can be extended in Port > PoE Setup
> PoE Setup to the following values.
• Class 0 – default: 0.44 W to 15.4 W, can be extended to 17.8 W.
• Class 1 – default: 0.44 W to 4 W, can be extended to 5.8 W.
• Class 2 – default: 0.44 W to 7 W, can be extended to 9 W.
• Class 3 – default: 0.44 W to 15.4 W, can be extended to 17.8 W.
• Class 4 – default: 0.44 W to 30 W, can be extended to 32.8 W.
Priority 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.
• 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.
Power-Up This field displays the PoE standard the Switch uses to provide power on this port.
Consuming
Power (W) This field displays the current amount of power consumed by the PD from the Switch on this port.
Max Power (W) This field displays the maximum amount of power the PD could use from the Switch on this port.
Table 244 Port > PoE Setup > PoE Status (continued)
LABEL DESCRIPTION