Catalogue Korenix PoE White Paper
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Detection Period
Classification Period
Start-Up Period
Operation Period
Disconnection Period
Vdc
44.57
15.5-20.5
>10 >2.8
t
< 50ms 50-75ms > 15us
Figure 4. PoE Power on Process
360-400ms
After the "Power On" process, PSE raises the power level to fit the need of PD and moves into the ON state.
Note!
Signature detection and classification processes are carried out by small voltages. This procedure is sensitive to environmental disturbances. To prevent faults during detecting and classifing, make sure your PoE device is well connected to ground.
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