Power Supplies for PoE Injectors & PoE switches

Knowing what power supply you would need to power your Power Over Ethernet, or PoE injector can be a little tricky with the different types of PoE protocols. We’ve put together this short article to help guide your buying decision when bringing power to your PoE injector. 

PoE IEEE 802.3af (Standard PoE)

Standard Power over Ethernet protocols allow each port to power connected devices up to 15.4W.

This system can often be found in internet protocol phones (IP Phones), basic IP Cameras and Internet Access Points, such as WIFI relays. Operating power ranges are typically between 44v – 57v, making 48v power supplies more than ideal solution to support these.  

Often times PoE injectors can be found at intervals to boost the voltage signal to combat against voltage drops over long distances of cabling.

Suggested Power Supply: MEAN WELL GST Desktop Charger Range, voltage outputs ranging from 5v, 12v, 24v, 48v.

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PoE+ IEEE 802.3at

Power over Ethernet Plus, or PoE+, allows each port to power connected devices up to 30W.

This system can often be found supplying power to more data-heavy applications, including IP Video Phones, PTZ HD Cameras, WIFI 5 Access Points and small audio system speakers.

PoE+ systems are often designed for rack mounting and can accommodate space internally for an onboard DC-to-DC converter and onboard power supply, simply only needing to be connected to a power source.  

Given that this system will often be running mission-critical infrastructure, the recommendation is to integrate a power redundancy management plan with an ADELSystem Uninterrupted Power Supply, or DC-UPS.  

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PoE++ IEEE 802.3bt

Power over Ethernet Plus Plus, or PoE++, allows each port to power connected devices up to 60/90W.

PoE++ systems are often found supplying power to high-data applications, including 4K PTZ HD Cameras, WiFi 6 Access Points, Displays, Point of Sale systems, Desktops, and laptops.  

Similar to the PoE+ systems, PoE++ hubs often have inbuilt power supplies and DC-to-DC converters, really only requiring integration with a power redundancy management plan, which we highly suggest the ADELSystem Uninterrupted Power Supplies.  

Do you have a unique PoE application?

Often times running network communication has miles and miles of cabling to support mission-critical infrastructure, often requiring multiple combinations of PoE++ hubs and PoE injectors to reduce the impacts of voltage drop.  

If you have any questions, our Power Supplies Australia team are here to help! 

Send your inquiry to the Power Supplies Australian Team at our Contact Page here or call  1800 632 693.