Planet IGS-5225 Series User Manual page 387

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 8 in accordance with the maximum power draw as specified by
Class Usage
0 Default
1
Optional
2 Optional
3 Optional
Valid for Type 2 (802.3at)
4 devices,
not allowed for 802.3af devices
5
Valid for Type 3 (802.3bt)
devices
6
7
Valid for Type 4 (802.3bt)
devices
8
Range of maximum power used by the PD
0.44 to 12.95 watts
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 25.5 watts
40 watts
51 watts (4-pair)
62 watts (4-pair)
71.3 watts (4-pair)
Table 4-6-1-1 Device Class.
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User's Manual of IGS-5225 series
Table 4-6-1-1.
Class Description
Classification unimplement
Very low power
Low power
Mid power
High power