Thanks to the Ethernet standard, we can count on networks as they are today. It is one of the fundamental standards that allowed millions of devices to communicate with each other.
Its standardizations also contributed to its truly massive adoption.
So, in this guide, you will learn about the PoE (Power over Ethernet) standard, which makes it possible to supply electrical energy to a large number of devices connected to the network, through the same Ethernet network cable through which we pass the data.
Refers to the transmission of electrical power to compatible devices. This is possible through the same network cable that allows connection to local area networks.
This standard has been around since 2003 and was an important change.
It is designed in such a way that it does not impede optimal connectivity and does not reduce performance. This allows users to be able to safely use devices that are compatible with the PoE standard.
As we can see, the network cable has two main functions: data transmission and power supply. Thus we avoid having to use two different ones.
Not all types of PoE are the same. We are going to see which are the main standards that we can use and what general specifications each one has.
The uses, as we will see, also vary from one to another. However, the basis of operation will be the same and will allow the use of a network cable as well so that it can pass power.
Consequently, PoE++ was born, which is subdivided into two types: Type 3 and Type 4.
They are referred to as Type 3 and Type 4 since the earlier PoE and PoE+ standards are also known as Type 1 and Type 2, respectively.
One of the direct objectives of this standard is to eliminate the need to install equipment for power supply.
Consequently, there is a significant saving in the costs of implementing a network.
Likewise, people who are not exactly involved in networks can perceive the advantages of using PoE.
It will be much easier for anyone to know that through a single cable, they are already managing to provide electricity to a device (IoT equipment, for example) and, in turn, connectivity.
In the long run, you will not have to think at all about which cable to disconnect from the current, which is from the network, and which one you should not disconnect.
This is why we’ve enlisted Power over Ethernet (PoE) advantages:
But not everything is perfect. So, we’ve also enlisted Power over Ethernet (PoE) disadvantages:
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