Web-based Configuration Guide
Port Management
70
4.8.1
PoE Global Settings
Choose
Local Device
>
Ports
>
PoE
>
PoE Settings
.
PoE Transmit Power Mode refers to the way that a device allocates power to a connected PD (Powered Device).
It supports Auto mode and Energy-saving mode.
In Auto mode, the system allocates power based on the classes of PDs detected on ports. The device allocates
power to PD devices of Class 0~4 based on a fixed value: Class 0 is 15.4W, Class 1 is 4W, Class 2 is 7W, Class
3 is 15.4W, Class 4 Type 1 is 15.4W, and Class 4 Type 2 is 30W. In this mode, if the port is connected to a
device of Class 3, even if the actual power consumption is only 11W, the PoE power supply device will allocate
power to the port based on the power of 15.4W.
In energy-saving mode, the PoE device dynamically adjusts allocated power based on actual consumption of
PDs. In this mode, in order to prevent the power supply of the port from fluctuating due to the fluctuation of the
actual power consumption of the PD when the power is fully loaded, you can set the Reserved Transmit Power,
and the reserved power will not be used for power supply, so as to ensure that the total power consumed by the
current system does not exceed the limit of the PoE device. The size of the reserved power is expressed as a
percentage of the total PoE power. The value ranges from 0 to 50.
