What should be noted when using PoE power supplies

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In the versions earlier than V100R005, all PoE power supplies are 250 W non-constant current power supplies. When two power supplies are used, they are used for power redundancy, but do not offer power.
In V100R005 and later versions, PoE power supplies include 250 W and 500 W constant current power supplies. When two 250 W or 500 W constant current power supplies are used, the power supplies can be used for power redundancy and offer power at the same time.
In V200R002 and later versions, PoE power supplies include 250 W, 500 W, 580 W, and 1150 W constant current power supplies. When two 580 W or 1150 W constant current power supplies are used, the power supplies can be used for power redundancy and offer power at the same time.

Other related questions:
How can I activate a suspended AP when the AP uses the PoE power supply
APs provide a self-recovery mechanism. When software or hardware on an AP is suspended, the AP automatically recovers.

Does IAD208 support POE power supply
IAD208 does not support POE power supply

PoE power supply distance of a WLAN device
According to IEEE 802.3af/at standards, Category 5 cables provide a maximum of 100 m power supply distance.

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