ZyXEL Communications XGS1930-28HP, Руководство пользователя

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Chapter 8 Basic Setting
XGS1930 Series User’s Guide
94
The following table describes the labels in this screen.
Table 31 Basic Setting > PoE Status
LABEL DESCRIPTION
PoE Mode This field displays the power management mode used by the Switch, whether it is in
Classification or Consumption mode.
Total Power (W) This field displays the total power the Switch can provide to the connected PoE-enabled
devices on the PoE ports.
PoE Usage (%) This field displays the amount of power currently being supplied to connected PoE devices (PDs)
as a percentage of the total PoE power the Switch can supply.
When PoE usage reaches 100%, the Switch will shut down PDs one-by-one according to the PD
priority which you configured in
Basic Setting > PoE Setup .
PoE Usage
Threshold (%) This field displays the percentage of PoE usage. The Switch will generate a trap and/or a log
when the usage exceeds the specified threshold.
Consuming
Power (W) This field displays the amount of power the Switch is currently supplying to the connected PoE-
enabled devices.
Allocated Power
(W) This field displays the total amount of power the Switch (in classification mode) has reserved for
PoE after negotiating with the connected PoE devices. It shows
NA when the Switch is in
consumption mode.
Consuming Power (W) can be less than or equal but not more than the Allocated Power (W) .
Remaining
Power (W) This field displays the amount of power the Switch can still provide for PoE.
Note: The Switch must have at least 16 W of remaining power in order to supply
power to a PoE device, even if the PoE device needs less than 16 W.
Port This is the port index number.
State This field shows which ports can receive power from the Switch.
• Disable – The PD connected to this port cannot get power supply.
• Enable – The PD connected to this port can receive power.
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 Basic Setting >
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 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.