Poe System Settings - D-Link xStack Reference Manual

xStack® DGS-3120 Series Layer 2 Stackable Managed Switch Web UI Reference Guide
•
Auto-discovery recognizes the connection of a PD (Powered Device) and automatically sends power to
it.
•
The Auto-disable feature occurs under two conditions: firstly, if the total power consumption exceeds
the system power limit; and secondly, if the per port power consumption exceeds the per port power
limit.
•
Active circuit protection automatically disables the port if there is a short. Other ports will remain active.
Based on 802.3af/at PDs receive power according to the following classification:
Class Maximum power available to PD
0 15.4W
1 4.0W
2 7.0W
3 15.4W
4 15.4W
To configure the PoE features on the Switch, click System Configuration > PoE. The PoE System Settings window
is used to assign a power limit and power disconnect method for the whole PoE system. To configure the Power Limit
for the PoE system, enter a value between 1W and 370W for the Switch in the Power Limit field. When the total
consumed power exceeds the power limit, the PoE controller (located in the PSE) disconnects the power to prevent
overloading the power supply.

PoE System Settings

To view the following window, click System Configuration > PoE > PoE System Settings, as show below:
PSE provides power according to the following classification:
Class
0
1
2
3
User define 31.2W
11
Max power used by PSE
16.2W
4.2W
7.4W
16.2W