What is Power over Ethernet(PoE)

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Power over Ethernet is a technology that lets network cables carry electrical power. It allows a network cable to provide both data and power for the PoE enabled devices

Devices that use Power over Ethernet(PoE)

Benefits of PoE Switches

  • Reduced Cost

With PoE switches you eliminate the need to run additional power cables to your devices. It saves you cost on power cables, power outlets and infrastructure equipment required for electrical installation.

  • Maximize power resources

PoE switches can automatically detect consumption by PoE powered devices and supply on the required amount of power. This ability to allocate power helps minimize power waste which in turn helps you save money.

  • Flexibility

Since there is no connection to an electrical outlet, it is easy to position your devices wherever you want them. And it is also easy to reposition them.

  • Safety

PoE is designed to protect network equipment from overload, under powering or incorrect installation. You don not have to worry about accidentally destroying an expensive component or any of your devices because you overloaded the cable or worry that the system is not working because it is under powered.

  • Best Performance

PoE switches incorporate more advanced hardware and software to adapt to the environment and maintain network security. Most PoE switches can automatically sense whether an added component is fully compatible , reducing the need for configuration.

Limitation

  • The furthest distance a PoE switch can transmit data is 100 meters. This is problematic for large networks spanning enterprises, campuses, hotels, or retail operations. A PoE Ethernet extender, however, can increase the transmission distance to 4000 feet.
  • Non-compliant devices require additional equipment.
  • If devices have significant power demands, they may exceed the PoE budget for power.

Conclusion

Depending on what you are looking for and what you need, there is a variety of products for you. PoE switches are the way to go but you can also upgrade non PoE to PoE by using Midspans or PoE injectors to make a Non PoE to work with PoE system.You can also upgrade powered devices such as IP cameras to PoE using a PoE splitter.

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