We supply outdoor PoE, we all understand the operation of the switch failure is inevitable, but after the failure to be handled quickly, as soon as possible to detect faults, troubleshooting, to ensure the normal work.
Because the external power supply is not stable, the power supply circuit aging or lightning strike and other reasons cause the power supply is damaged or the fan stops, so that it can not work properly. In view of this kind of breakdown, first should do well the external power supply work, generally through the introduction of independent power lines to provide independent power supply, and add the voltage regulator to avoid the phenomenon of transient pressure or low voltage. And do a good job of lightning.
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