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Power over Ethernet (PoE) transmits power and data simultaneously over the same cabling, making the installation of certain hardware and infrastructure easier.

What is a PoE?

Power over Ethernet (PoE) is one of the key enabling technologies for a lot of business infrastructure. PoE allows data and electricity to be transmitted along the same cable, which makes it cheaper and easier to install needed equipment, including security cameras.

The Institute of Electrical and Electronics Engineers (IEEE) defines several wattage standards, including newer Type 2 and 3 standards that allow for higher wattage and more devices to be powered by the same cable. PoE has a maximum range of approximately 325 ft/100 m.

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Why is PoE important?

Many types of security cameras use PoE. Internet Protocol (IP) cameras transmit their data digitally, either wirelessly or over a PoE cable. In most cases, businesses opt for wired security cameras when possible because they are easier to manage and more reliable.

With PoE, camera installers would need to run two cables, one to the router for data and another to a power source. This would dramatically increase the cost to install security cameras, and it may even make installation impractical in certain locations.

By allowing the installation of more security cameras, and more diverse locations, PoE is a key enabling factor for modern cloud-based surveillance systems.

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