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Title: What are the features of and differences between PoE and PoE+? [Print this page]
Author: GTAC-Daisy    Time: 2019-6-28 17:56
Title: What are the features of and differences between PoE and PoE+?
  
Parameter
  
802.3af
802.3at
PD  available power
12.95  W
25.50  W
PSE  maximum power
15.4  W
30  W
PSE  voltage range
44.0–57.0  V
50.0–57.0  V
PD  voltage range
37.0–57.0  V
42.5–57.0  V
Maximum network cable impedance
20  Ω
12.5  Ω
Power  management method
The power levels are classified  during line initialization.
The power is divided into four  levels or is dynamically adjusted by 0.1 W during line initialization.
Supported  cables
CAT3 or  CAT5 twisted-pair cables
CAT5 twisted-pair  cables





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