Planet IXT-900-1X1UP User Manual page 169

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 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
Since the IXT-900 PoE model's PoE port supports 48~54V DC PoE power output, please check and
assure the Powered Device's (PD) acceptable DC power range is 54V DC; otherwise, it will damage
the Powered Device (PD).
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 4-7-1 Device Class.
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User's Manual of IXT-900 PoE series
Table 4-7-1.
Class Description
Classification
unimplemented
Very low power
Low power
Mid power
High power
High power
High power
High power
High power