PoE, or power over Ethernet, uses Ethernet ports to deliver the power and data connection to PoE devices. We can not simply answer the question about the number of pairs a PoE device requires. Instead, we must determine its PoE compatibility and standard of power over Ethernet being used at such places. For example, if you are using PoE 802.3af, it is compatible with older versions of Ethernet ports like the two pairs.
However, at each step, we can divide our research, understand the technical aspects of each PoE standard, and determine compatibility for each standard. In this guide, I will briefly highlight PoE technology and make you cognize various facts related to data and power.
What is Power over Ethernet technology?
Power over Ethernet PoE is a networking technology that works on the Institute of Electrical and Electronics Engineering principles.
It is popular due to data and power transmission over a single Ethernet port. Moreover, it offers customers higher data speeds and a safe browsing experience. That’s why people prefer Ethernet technology over wireless access points like Wi-Fi.
Suggested Reading: What is PoE?
How does power over Ethernet technology work?
Here is our main question — how does Power over Ethernet work? The simple and concise answer is— you have to use a PoE switch compatible with the PoE standard.
That switch will deliver the power and data to the PoE devices. If your devices are not PoE compatible, you might not get the power and data supply from the PoE switch. So, to achieve high network performance and get the PoE power, you must employ:
- Network switch
- PoE devices
However, if your device is not PoE compatible, you have other options, like the PoE injectors.
3 Essential Steps to Making a PoE Network
Do you want to build a PoE network? If yes, there are some requirements to fulfill the PoE network. For example, you need PoE devices. Apart from that, I have listed the following components to build a PoE network.
PoE device is a specific device that works with IEEE standards. If you are using IEEE 802.3af, it will support the network and work on it efficiently. So, a PoE device can be an IP camera or computer you want to connect. Nowadays, most devices have built-in compatibility with the power over Ethernet.
Ethernet ports are not simple cables. Therefore, you can’t install the Ethernet cabling system everywhere. Instead, they have specialized jacks or connectors that link them with the PoE switch and device for power and data transmission.
There are two types of Ethernet ports:
- Copper ports have a range of around 100 meters.
- Optical fibers run for miles and are better for transmission over long distances.
In the copper ports, you find the Ethernet ports’ categories, like the CAT1 to CAT8 ports. All these have different compatibility with IEEE standards.
The PoE switch acts as a bridge that builds the link with the PoE device. However, you can consider it a power source that dual supplies the power and data.
Do you need the minimum number of bottlenecks? Great! Higher network performances always help get the best for your business. It is where we consider the routers.
Routers are devices that reduce the potential number of bottlenecks in the network and optimize its security. These analyze the coming data packets and offer them routes.
After getting all the components, you can move ahead with making the network. Here are the different steps to creating a PoE Network.
Step 1: Set Up All tools at the required place
Before setting up the network, ensure all power-sourcing equipment and devices are working fine. You can place them in the right place. For example, if you are looking for a Surveillance system, you can install your IP camera outside your home or office. Similarly, you can use a separate room for the monitoring structure.
Step 2: Build a connection with the PoE-powered devices
Once you have all your powered devices in the right place, it is time to build the connection with the powered device. For this purpose, you can take up your Ethernet port and plug it into the RJ45 connector jack to complete the process perfectly.
Step 3: Connect the PoE switch with the PoE device
Do you have power-sourcing equipment to build your (power over Ethernet) PoE network? If yes, it is time to plug the Ethernet cable into it. It will link the power-sourcing equipment and the powered devices, fulfilling the system. Now, your IP camera can receive power and data from the PoE switch.
Additional Step: Link your Router
Do you have a router to optimize the network performance? You can connect it with your switch. It will analyze the data packets and provide them with a route.
3 Fundamental Types of Power over Ethernet Ports
In Ethernet technology, we come across multiple types of category Ethernet ports. They have different pins, connectors, and shieldings. Depending on all those factors, you have to rely on the given IEEE standard and get high-power PoE from your PoE switches.
Here are three fundamental types of power over Ethernet ports.
Mode A PoE cable has different features compatible with varying standards of IEEE.
It has features like:
- It contains the data pairs and is utilized for data purposes.
- It has pins 1,2,3 and 6 for the connection.
- Pins 1 and 2 carry the positive DC power, while pins 3 and 6 take the negative power.
Mode A Ethernet ports are famous for power over Ethernet networks and are compatible with all the IEEE standards for PoE.
Mode B is like the Mode A Ethernet cable that has different features such as:
- It has spare pairs.
- Its pins are labeled as 4,5,7 and 8.
- Pins 4 and 5 carry the positive DC power, while pins 7 and 8 carry the negative DC power.
Mode B Ethernet ports are also compatible with all PoE standards.
In 4PPoE, you get some advanced features solely operated by the PoE BT standard. Here are some features:
- It uses all four pairs of Ethernet ports. Hence, the pins are from 1 to 8.
- Pins 1,2,4 and 5 are used to carry the positive DC power, while 3,6,7, and 8 are for the negative DC power.
You can use this Ethernet cable for Power over Ethernet if your IEEE standard supports it.
3 PoE standards and compatibility for PoE ports
Institute of Electrical and Electronics Engineering has defined standards upon which power over Ethernet works.
We will explain the PoE standards and highlight their cable compatibility.
IEEE 802.3af was launched in 2003 and is still working in some networks.
It is compatible with Mode A and Mode B ports but not 4PPoE.
IEEE 802.3at was introduced in 2009, and some networks still have this system installed.
Like the previous IEEE standard, it can work with Mode A and B ports, not the 4PPoE.
This PoE standard is the latest version of PoE, offering feasibility and other features at the high end.
It supports all the cables, including Mode A, B, and 4PPoE.
You must check the pricing and quality whenever you purchase an Ethernet port for the PoE. However, we have the best quality PoE ports. Howevision Professional is a China supplier that facilitates its customers with quality PoE tools.