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How to build a PoE network system for high powered devices?

Power hungry applications have been used in office and home widely, therefore the demands of new high power PoE are increasing, which means advanced PoE technology and standard are urgenly needed for providing steadier power and network to these power hungry IP devices. Thankfully, you’re not completely out of luck, you can find cost-saving and safe solutions in Fastcabling, meanwhile, the solutions we provide is also suitable for your existing non-PoE system.

What is high power PoE?

As the explosion of IoT that requires powerful network capacity, more and more IP devices are invented in this modern society, and because of the limitation of wireless technology, Power over Ethernet is an accessible solution to deal with power and data issue with single Ethernet cable for remote IP devices.

Power over Ethernet (PoE) has become powering strategy for wider array of higher-wattage devices and IoT applications. In this way, there is no need to run the power and network cable separately, simplifying installation and saving cost, while adding new intelligent device control capabilities. Athough there are pros and cons of PoE technology, we can not deny its convenience,flexibility and safety.

PoE systems typically include only two items – powered devices (PDs) and power sourcing equipment (PSE). As their names imply, PD’s use the electrical energy delivered through the cable while the PSE supplies it. High-Power PoE defines a method of safely powering a PD over a cable by a PSE, and then switching off power if a PD is disconnected from the cable.


Actually, some of IoT devices are high power input devices,such as emerging applications including:

• Building infrastructure such as LED lighting

• Retail POS systems and digital signage

• High Performance Wireless Access Points that support IEEE 802.11ax and 802.11ac Wave 2

• High definition pan-tilt-zoom(PTZ) security cameras with heaters for harsh environments

Driven by the need to connect emerging power hungry IoT devices, The industry has steadily increased the amount of power that PoE can deliver over Ethernet cabling so that a broader range of devices can be supported.Industry PoE standards are advancing to meet the needs. In 2018,PoE technology has progressed with the introduction of the IEEE 802.3bt standard, which is new technology uses all 4 pairs in an Ethernet cable and includes support for 10GBASE-T, 5GBASE-T, and 2.5GBASE-T over CAT5e or higher.This enables the PSE to support 45W-90W power budge. While the first Standard was IEEE 802.3af, which only supported 15.4W for device. Then came IEEE 802.3at, which supported up to 30W. With the advent of high-power IEEE 802.3bt standards, it is more important than ever to deliver power as efficiently as possible.In addition, the 802.3bt standard will also be able to reduce power dissipation.

After knowing these basic knowledge, let’s get to the solutions.

There are three High Power PoE Solutions:

1.90W PoE injector

Our Fastcabling’s 5720-74 90W PoE injector is a cost-effective device that meets IEEE 802.3bt standard with 90W high power budge to supply power and data for your various powered devices which needs high power input. By connecting this injector to your existing switch,you can integrate your existing non-PoE switch with PoE without extra power and network cabling and the injector will transmit power in a maximum of 72W and data for your high powered devices.


What’s more,the most energy-efficient way to deploy high-power PoE is using midspans that are installed between the existing switch and the network’s PD. 5720-74 90W PoE injector is a kind of mispan, which is a stand-alone plug-and-play device, residing between an ordinary Ethernet switch and the terminals. Midspans are ideal when there is no need to upgrade the network switch, and they can be specified in a wide range of port densities.

More importantly, from an efficiency perspective, midspans use distributed power architectures so that they solve the problem of quiescent power losses with PoE-enabled switches. They also offer remote-management and energy-saving capabilities that are not available with PoE-enabled switches.

  2.90W PoE injector+ 90W PoE splitter

If in the places where are hard to find AC outlets, and the power devices you want to deploy is non-PoE devices that require high power input, this issue can be solved by using the 5720-74 90W PoE injector and the 5721-23 90W PoE splitter together.Because the 5721-23 90W PoE splitter also adpopts IEEE 802.3bt standard, so this two devices generally work as a pair. By connecting these two devices to the main switch, the whole system can provide up to 72W power for your powered devices, which is perfect for many power hungry applications.


  • How this system works?How this system works?

The 90W PoE injector gets power and data from the back-end switch, and it is as a mispan to transmit to the 90W PoE splitter, and the splitter will separate power and data so that the non-PoE devices can receive data only and the power can ues to supply devices without network.

3. 90W PoE injector and PoE powered switch

What if you want to deploy more than one powered device at the same area where also hard to find AC outlet,there is solution in Fastcaling.Buying a common 24 ports switch is expensive and usually many ports will be spare.In this case, PoE power switch is a suitable choice. Our Fastcabling’s 5541-25 PoE powered switch is a device that integrates PSE and PDs in one to receive power and data and passthrough to powered devices.

There are 8 ports in the switch, one is for “PoE in” and the other 7 are for “PoE out”. Each port can output up to 30W with gigabit network, which is perfect for cleanly adding Ethernet ports to where are needed and expanding Ethernet ports in a rational way. Using this switch can help you to accomplish point to point or point to multi-point deployment with single Ethernet cable without power and network cabling, which saves time and provides great installation flexibility and cost saving. Every time you need to install a new powered device, you just need to connect an Ethernet cable to the new device.


Working with 5720-74 90W PoE injector, the whole system can supply up to 71W. Therefore, you can be deal with the supplying issue for high powered devices quickly and conveniently.


Hope these three solutions can help you build a cost-effective and safe PoE system for high powered device. If you have any question or want to get more information, Fastcabling are waiting for your consultation.

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