WBE660S WIFI7 [Access Point] - Power Supply special features and device behavior in case of power supply problems

In this article, we will examine the power supply features and behavior of the new WBE660 (SBE22000) WiFi 7 Triple-Radio Nebula Flex Pro Access Point. If you're experiencing issues with powering on the access point, encountering a red indicator without access, or finding that the access point isn't turning on at all, the information in this article can assist you

Disclaimer!
This article offers a general overview of the series and may not apply uniformly to every model. Prior to purchasing or using the device, please consult the model-specific documentation or reach out to technical support for accurate information.

Physical Interfaces

USB-C Power Delivery

In USB-C Power Delivery, upon cable connection, the power source initially delivers a basic current at 5 volts. Should the power recipient require a higher electric current, it must engage in an additional negotiation process to obtain an increased current supply.

After the initial current delivery, the power source will communicate its available current specifications. The recipient will then reference the profile and respond with the required current.

Verify the Power Capability of the adapter

To confirm the adapter's power capability, it is essential to guarantee that each port can provide a minimum of 45 watts of power. To satisfy the requirements specified by an AP the power supply must provide at least 45 watts of power, even if multiple devices are connected to this power supply

Power Supply and Behavior

• Antenna behavior in USB-C Power Supply
  Sufficient Power Supply – 4T4R
  Insufficient Power Supply – Power off (with red power LED)

Note: When powered via USB-C, if the power supply is insufficient, the access point (AP) won't turn on. Instead, a small LED light next to the power socket will illuminate in red, indicating insufficient power

• Antenna behavior in PoE Power Supply
  802.3bt – 4T4R
  802.3at – 2T4R*
  802.3af – WiFi Disable

Note: USB-C is prior to PoE as the power supply. As a power source, the AP will prioritize USB-C over PoE if both are connected. Therefore, if the AP is connected to a USB-C adapter with insufficient power and is also connected to a PoE switch that provides 802.3bt power. The access point will remain in the powered-off state.