What PoE standard supports full functionality of dual-band Mist APs with USB devices?

The IEEE 802.3at (PoE+) standard is required for full functionality of most modern Mist APs, especially when using power-drawing peripherals. This standard delivers up to 30 watts of power at the source. This ensures the AP can operate its dual-band Wi-Fi radios, processing engine, and the USB port simultaneously. Using the lower-power IEEE 802.3af standard would cause the AP to disable certain features, such as the USB port, to conserve power.

A. IEEE 802.3af (PoE) provides a maximum of 15.4W, which is insufficient for a high-performance AP running all features including a USB device.

B. IEEE 802.1X is a port-based network access control (PNAC) standard for authentication, not a power delivery standard.

D. IEEE 802.3bz is a standard for 2.5 Gbps and 5 Gbps Ethernet speeds over copper cabling, not for power delivery.

1. Juniper Networks, "AP43 Access Point Datasheet". Under "Power Options", it states: "Full functionality with 802.3at PoE. 802.3af power will disable the USB port..."

2. Juniper Networks, "AP45 Access Point Datasheet". The "Power" section specifies "802.3at" for full operation.