ZyXEL Communications GS1900 Series User Manual page 80

Powered Device (PD).
In the figure below, the IP camera and IP phone get their power directly from the Switch. Aside from
minimizing the need for cables and wires, PoE removes the hassle of trying to find a nearby electric
outlet to power up devices.
Figure 88 Powered Device Examples
You can also set priorities so that the Switch is able to reserve and allocate power to certain PDs.
Note: The PoE devices that supply or receive power and their connected Ethernet cables
must all be completely indoors.
To view the current amount of power that PDs are receiving from the Switch, click Monitor > Port > PoE.
Figure 89 Monitor > Port > PoE
Each field is described in the following table.
Table 29 Monitor > Port > PoE
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. The total power of GS1900-10HP is 77 W and GS1900-8HP is 70 W.
Consuming This field displays the total amount of power the Switch is currently supplying to the
Power(W) 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.
Chapter 8 Monitor: Port
GS1900 Series User's Guide
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