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What Are the Differences Between a PoE Power Supply Unit and a Common Power Supply Unit on a S2700/S3700/S5700 Switch?

Latest reply: May 23, 2017 00:48:45 949 1 0 0
What Are the Differences Between a PoE Power Supply Unit and a Common Power Supply Unit on a S2700/S3700/S5700 Switch?
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ms.america
Created May 23, 2017 00:48:45 Helpful(0) Helpful(0)

On a S2700/S3700/S5700 switch, a PoE power supply unit and a common power supply unit differ in their appearance and functions.
  • Figure 1, Figure 2, and Figure 3 show their appearance. A PoE power supply unit has a fan, but a common power supply unit does not.
    Figure 1 Common power supply unit
    fig_dc_s_faq_00030201_x7.png
    Figure 2 250 W PoE power supply unit
    fig_dc_s_faq_00030202_x7.png
    Figure 3 500 W PoE power supply unit
    fig_dc_s_faq_00030203_x7.png
  • A PoE power supply unit can provide power for both the entire device and the PDs, whereas a common power supply unit can provide power for only the entire device.
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