Will the PoE function of S2700/S3700/S5700 PoE switches be affected when a 110 V power source is used

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When using Huawei power supply units, Huawei fixed switches supports 110 V AC input power. The power consumption of most powered devices (PDs) is 4 W to 5 W; therefore, 250 W and 500 W power supply units can provide sufficient PoE power for PDs.
NOTE:
All fixed PoE switches except the S2700-9TP-PWR-EI, S2750-20TP-PWR-EI-AC, S2750-28TP-PWR-EI-AC, S2751-28TP-PWR-EI-AC, S5700-10P-PWR-LI-AC, S5700-28P-PWR-LI-AC, S5700-28TP-PWR-LI-AC, S5700S-28P-PWR-LI-AC, S5701-28TP-PWR-LI-AC, S5700-52P-PWR-LI-AC, S5700-28X-PWR-LI-AC, and S5700-52X-PWR-LI-AC support double PoE power supply units.

Other related questions:
How much voltage does a PoE power module on an S series switch provide
The PoE voltage on an S series switch is the range 44 V to 57 V, and the typical value is 48 V. A PoE switch does not support 24 V.

Distance at which PoE power is provided to an S series switch
A PoE S series switch can provide power to PDs over a distance of up to 100 m.

Whether S series switch port mirroring function affects PoE power supply
For an S-series switch which has PoE model, it will not affect PoE function after configured the mirroring function .

How to enable the PoE function on a switch
The PoE function is enabled by default on a PoE switch. A switch configured with PoE modules can provide power to PDs after it is powered on.

What should be noted when using PoE power supplies
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.

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