An Introduction To Industrial Power Over Ethernet Switches

Introduction to Power over Ethernet

Power over Ethernet (PoE) is a technology for wired Ethernet connections that allows devices to be powered by the data cable. PoE eliminates the need for a separate power supply or power cord for devices such as IP phones, wireless access points, and security cameras.

PoE switches are specialized Ethernet switches that can provide power to devices through data cables. They are commonly used in industrial settings where there is a need to connect and power devices in hard-to-reach places.

PoE switches come in a variety of form factors, including desktop, rack-mount, and DIN-rail mountable. They also come in different port configurations, from 8-port to 48-port models. Choose a PoE switch that meets your industrial application needs.

How Power over Ethernet Works

Power over Ethernet, or PoE, is a technology that allows networked devices to receive power through the same Ethernet cable that carries data. This can be useful in industrial applications where devices are located in difficult-to-reach or dangerous locations, or when AC power is not available.

PoE works by using two of the four pairs of wires in an Ethernet cable to carry both data and power. The power is sent on the unused pairs of wires, while the data pairs are used for communication as usual. Power over Ethernet is standardized in IEEE 802.3af and 802.3at, which define the maximum amount of power that can be safely delivered to a device.

In an industrial application, Power over Ethernet switches can be used to deliver power to devices such as IP cameras, access control readers, and wireless access points. These switches are designed to withstand harsh environments and support high-power devices. When choosing a Power over Ethernet switch for your application, it is important to consider the number of ports you need, the type of devices you will be powering, and the maximum amount of power required.

Benefits of Power over Ethernet

Industrial Power over Ethernet (PoE) switches offer many benefits over traditional non-PoE industrial Ethernet switches. They can provide both power and data over a single Ethernet cable, which simplifies wiring and installation. Additionally, PoE switches are typically more rugged and durable than their non-PoE counterparts, making them ideal for harsh industrial environments.

Another advantage of PoE switches is that they can be powered by either an AC or DC power source. This flexibility makes them well-suited for a variety of applications, including those in which backup power is not available. Additionally, PoE switches often come with built-in security features, such as 802.1x authentication and access control lists (ACLs), that can help to protect critical networks and assets.

Types of Industrial Power over Ethernet Switches

Industrial Power over Ethernet switches is designed to provide both power and data connectivity to devices in harsh, industrial environments. There are a variety of these types of switches available on the market, each with its own set of features and benefits. Here is a look at some of the different types of industrial Power over Ethernet switches:

1. Managed Industrial PoE Switch: These switches offer advanced features such as Quality of Service (QoS), VLAN support, and network security. They are ideal for use in complex industrial networks.

2. Unmanaged Industrial PoE Switch: These switches are a great choice for simple industrial networks. They are easy to install and require no configuration.

3. Hybrid Industrial Power over Ethernet Switches: These switches offer the best of both worlds, with advanced features like QoS and VLAN support, along with the convenience of an unmanaged switch.

4. PoE+ Industrial Power over Ethernet Switches: These switches offer increased power output for devices that require more power than standard PoE devices. They are ideal for use in high-power applications such as video surveillance and Wi-Fi access points.


Industrial Power over Ethernet switches offers many advantages for those who need to connect devices in difficult or dangerous environments. By using PoE technology, these switches can provide power and data connectivity in a single cable, which simplifies installation and reduces the risk of electrical hazards. In addition, industrial PoE switches are designed to withstand harsh conditions, making them ideal for use in industrial settings.

If you’re looking for an efficient and safe way to connect devices in an industrial setting, an industrial PoE switch may be the perfect solution.