Planet Networking & Communication SGS-5220 User Manual page 321

• Power Supply Budget
[W]
• Temperature
Threshold
• PoE Usage Threshold
Buttons
: Click to apply changes
: Click to undo any changes made locally and revert to previously saved values.
PD Classifications
A PD may be classified by the PSE based on the classification information provided by the PD. The intent of PD classification is
to provide information about the maximum power required by the PD during operation. However, to improve power management
at the PSE, the PD provides a signature about Class level.
The PD is classified based on power. The classification of the PD is the maximum power that the PD will draw across all input
voltages and operational modes.
A PD will return to Class 0 to 4 in accordance with the maximum power draw as specified by
Class Usage
0 Default
1 Optional
2 Optional
3 Optional
4 Optional

Class-Reserved-Power mode: System reserves PoE power to PD
according to PoE class level.

Allocation-Consumption mode: System offers PoE power according to PD
real power consumption.

Allocation-Reserved-Power mode: Users are allowed to assign how much
PoE power for each port and system will reserve PoE power to PD.

LLDP-Consumption mode: System offers PoE power according to PD real
power consumption.

LLDP-Reserved-Power mode: System reserves PoE power to PD
according to LLDP configuration.
Set limit value of the total PoE port providing power to the PDs.
SGS-5220-24P2X available maximum value is 440watts.
Allows setting over temperature protection threshold value. If Its system
temperature is over the threshold then system will lower total PoE power
budget automatically.
Allows setting how much PoE power budget could be limited.
Range of maximum power used by the PD
12.95 watts (or to 15.4 watts for AF mode)
25.5 watts (or to 30.8 watts for AT mode)
0.44 to 3.84 watts
3.84 to 6.49 watts
6.49 to 12.95 watts (or to 15.4 watts)
12.95 to 25.50 watts (or to 30.8 watts)
Table 4-16-1 Device Class
321
User's Manual of SGS-5220 Series
Table 4-16-1.
Class Description
Mid power or high power
Very low power
Low power
Mid power
High power