HPE Aruba Networking Central AP PoE Requirements

AP PoE requirements vary by model but generally require 802.3af (PoE) or 802.3at (PoE+) to operate without restrictions. Lower-end models may function with 802.3af but with features disabled, while higher-performance or feature-rich APs need 802.3at or even 802.3bt (PoE++) for full functionality.

Note:

Always consult the specific AP's datasheet to determine the correct PoE standard for your desired performance and enabled features, especially if USB ports are being used.

Understanding PoE Standards

Following are the available PoE standards:

  • 802.3af (PoE)—Provides up to 15.4W of power.

  • 802.3at (PoE+)—Provides up to 30W of power.

  • 802.3bt (PoE++)—Provides 60W (Class 6) or up to 100W (Class 8) of power.

General PoE Requirements by Feature and Performance

Following are the general PoE Requirements based on feature and performance:

  • Full unrestricted operation—Requires a higher PoE class, such as 802.3at or 802.3bt, depending on the AP model.

  • Restricted mode with 802.3af—Many APs operate in power-save mode on 802.3af, disabling certain features like the USB port or reducing radio performance to conserve power.

  • IPM (Intelligent Power Management)—If your switch supports IPM, you can program the power-saving restrictions that are applied when a lower power source is used.

How to Determine Your AP's Specific Requirements

To determine the specific requirements of your AP, complete the following steps:

  1. Identify Your AP Model—Find the specific model number of your AP (for example, AP-515, AP-635).

  2. Consult the Datasheet—Visit Hewlett Packard Enterprise or the Airheads Community and search for your model to find its datasheet or product specifications page.

  3. Locate the Electrical Specifications—On the datasheet, find the section detailing power consumption and PoE requirements. This will list the minimum required PoE class for full functionality.

For example, AP-725 requires 802.3at (PoE+) for unrestricted operation and can operate with 802.3af (PoE) . However, the AP will be in restricted mode, disabling the USB port and potentially other features.

Key Considerations

  • USB Power—Connecting a USB device to the AP increases its power draw. If you plan to use a USB device, ensure your PoE source provides sufficient power.

  • LLDP (Link Layer Discovery Protocol)—Your PoE switch needs LLDP enabled for the AP to negotiate power properly.