UniFi - Supported PoE Protocols


Overview


This article provides tables with information on what PoE output each UniFi Switch provides and what input is needed by the UniFi access points, Cloud Keys, cameras and voice over IP phones. Please use these tables to cross-reference and find the correct switch to power your UniFi devices.

NOTES & REQUIREMENTS:
The most updated information will always be included in each product's Datasheet, available in the Downloads page under each specific product's Documentation subsection. There is also a helpful UniFi AP and Video Camera Compatibility table at the end of the UniFi PoE Switch Datasheet. Find more information on PoE Protocols in the Related Articles below.

Table of Contents


  1. Introduction
  2. UniFi Switches: PoE Output Methods Supported
  3. UniFi Access Points: Power Methods
  4. UniFi Cloud Key, Cameras and VoIP: Power Methods
  5. Related Articles

Introduction


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One of the challenges with large PoE deployments is figuring out how to provide power to your UniFi access points. When you have many access points it becomes less viable to power devices using AC PoE injectors. With non-PoE capable switches, you can add a Midspan device which acts as a collection of individual PoE injectors by receiving ethernet from the switch with only data being transmitted and adding power out over ethernet through the connection. Such a piece of equipment takes up additional space on your rack, while also costing you a lot of money.

To help with such deployments, UniFi Switches come in a few different models with varying numbers of ports from 8, 16, 24 and 48. These switches are endspan devices as they act as both the switch and provide PoE to devices. UniFi switches give you greater functionality when used with UniFi Access Points (UAPs) or UniFi Security Gateways (USGs) and cost well under the amount of the midspan device alone.


UniFi Switches: PoE Output Methods Supported


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UniFi Switches integrate switch functionality with Ubiquiti device/network management via the UniFi Network Controller while also providing PoE output to power access points, Cloud Keys, cameras, among others. Different switches provide different output methods, so it's important to learn what power method the UniFi switches support and compare it with the power method needed to power the different devices: UAPs, UCKs, UVCs, and UVPs.

It's important to note that each switch has a maximum power consumption which should be considered when powering multiple UniFi devices via PoE. For example, a US-16-150W has a 150W maximum power consumption, even though it has 16 ports—the same as the US-8-150W with only 8 ports. The UAP-HD has a maximum power consumption of 17W. Therefore, if you were to power 16 UAP-HD on a US-16-150W, there is a possibility that the wattage could exceed what the switch is capable of supplying in certain conditions.

Find each device's power consumption in their Datasheets, found in the Downloads page, within each product's Documentation section.

NOTE: US-16-XG, US-24, US-48 were designed to be used in applications where PoE output is not required, therefore do not offer any PoE out capabilities.

Model

Passive 24V

802.3af

802.3at

802.3bt

US-8*  

(48v passive)

   
US-8-60W*  

(4 ports)

   
US-8-150W  
US-16-150W  
US-24-250W  
US-24-500W  
US-48-500W  
US-48-750W  
US-XG-6POE  

*

US-8 has one PoE passthrough port, so it can power one device. The US-8-60W has four PoE ports. Both US-8 and US-8-60W only support 12W max output (802.3af) per port, while the rest will support 25W output (802.3at) per port.

UniFi Access Points: Power Methods


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Model

Passive 24V

802.3af

802.3at

802.3bt

UAP-AC-PRO      
UAP-AC-LR † (mode A)    
UAP-AC-LITE † (mode A)    
UAP-AC-IW   * *  
UAP-AC-IW-PRO   * *  
UAP-AC-EDU      
UAP-AC-M (Mode A only)    
UAP-AC-M-PRO      
UAP-nanoHD      
UAP-IW-HD   * *  
UAP-HD     **  
UAP-SHD     **  
UAP-XG      
UWB-XG      

*

**

The IW models only support PoE Pass-Through when powered by 802.3at.
The UAP-HD/SHD require 802.3at, therefore cannot be powered by a US-8 or US-8-60W.
The UAP-AC-LR/LITE was revised after date code 1638/board revision 17 and subsequent units support 802.3af in addition to 24V passive. Board Revision information can be found in the UniFi Network Controller within the properties panel of each UAP in the Details > Overview section.

Legacy Devices - Power Methods

Model

Passive 24V

802.3af

802.3at

802.3bt

UAP      
UAP-LR      
UAP-PRO      
UAP-AC      
UAP-AC-Outdoor      
UAP-Outdoor      
UAP-Outdoor+      
UAP-Outdoor5      
UAP-IW   * *  

*

UAP-IW only supports PoE Pass-Through when powered by 802.3at.

UniFi Cloud Key, Cameras and VoIP: Power Methods


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Model

Passive 24V

802.3af

802.3at

802.3bt

UC‑CK      
UCK-G2-PLUS      
UCK-G2      

UniFi Video and Protect

UVC-G3      
UVC-G3-AF    
UVC-G3-DOME    
UVC-G3-MICRO   *    
UVC‑G3‑PRO      
UVC-G3-Flex      
UVC-G4-PRO      

UniFi VoIP

UVP      
UVP‑PRO      
UVP‑Executive      

*

Using the included adapter. The adapter is for power only. The G3 Micro must be connected to the adapter, the adapter to an Ethernet cable, and the Ethernet cable to a UniFi Switch. See more in the UVC-G3-Micro Quick Start Guide.

Related Articles


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Intro to Networking - Power Over Ethernet (PoE)

UniFi - Secondary Ethernet Ports on UAPs


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