User's Manual

Table Of Contents
Users Manual of GS-5220 PoE Series Managed Switch
373
The wire gauge for the terminal block should be in the range of 12 ~ 22 AWG@25 degrees C.
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 Table 4-7-1-1.
Class
Usage
Range of maximum power used by the PD
Class Description
0
Default
0.44 to 12.95 watts
Classification unimplement
1 Optional 0.44 to 3.84 watts Very low power
2 Optional 3.84 to 6.49 watts Low power
3
Optional 6.49 to 12.95 watts (or to 15.4 watts) Mid power
4
Optional 12.95 to 60 watts (or to 72 watts) High power
Table 4-7-1-1 Device Class.