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FAQ

There is voltage reduction due to line impedance in 250 meter cable for PoE. What should I do?

Answer:

Make sure your POE switch is connected to a 57V power supply so the powered device can get the full 25W after the 250M voltage reduction.
PoE output power table:

Input VoltageOutput PowerAfter 250m VoltagePower
57V34.2W42.93V25.758W
55V33W40.93V24.558W
53V31.8W38.93V23.358W
51V30.6W36.93V22.158W

(Base on CAT-5e cable)

It is suggested to pre-test the function before deployment. The maximum available transmission distance of PoE depends on the negotiation result of PD and PSE. Some PDs using EtherWAN PoE/PSE switches may only support a standard distance of 100 meters. Contact EtherWAN if assistanee is needed.