Yes, access points need power to operate.
While access points always require power, the way they receive it can vary. Modern access points commonly utilize Power over Ethernet (PoE), which conveniently delivers both data and power through a single Ethernet cable, eliminating the need for a separate power adapter. However, some access points, especially older models or those not supporting PoE, require a dedicated AC/DC adapter to function.
Here's a breakdown of the power options:
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Power over Ethernet (PoE): This is a popular method where the access point receives power directly through the Ethernet cable. This simplifies installation, especially in locations where power outlets are not readily available. A PoE switch or PoE injector is needed to supply power through the Ethernet cable.
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AC/DC Adapter: Some access points use a traditional AC/DC adapter that plugs into a standard power outlet. This adapter converts the AC power from the outlet into the DC power required by the access point. This method is often used when PoE is not available or supported.
Summary:
Access points require power to function. Power can be supplied through Power over Ethernet (PoE) or through a dedicated AC/DC power adapter. The choice depends on the access point's capabilities and the available infrastructure.