PoE switches are clever devices that can improve the efficiency, flexibility and scalability of a network. Understanding the functionality of PoE switches allows you to harness their capabilities effectively when setting up your network. In this comprehensive 4Cabling guide, we aim to provide a definite answer to the question ‘what is a PoE ethernet switch’ by covering the different types of PoE switches, their functionalities and the benefits of using them in your network. 

A PoE switch is an advanced network switch that incorporates Power over Ethernet (PoE) technology. This type of technology revolutionised network connections, as it allows the switch to deliver both power and data to a device simultaneously. As a PoE switch requires only one Ethernet cable to connect to a network device, it is a popular choice for those looking to simplify their network setup.

PoE switches can power a number of devices in a network, including IP and security cameras, VoIP phone systems and wireless access points. Combining the transmission of power and data into a single switch eliminates the need for separate electrical wiring running to each of these devices, reducing both the complexity and the cost of setting up and operating your network.

PoE switches include several components and functions to help them operate with your devices, such as:

• Power sourcing equipment: This is incorporated into the interior of the switch to help manage the delivery of data through the Ethernet cable
• Transmission of data and power: PoE switches use standard ethernet cables, such as the Cat5e style, to transmit power and data
• Power management: Some PoE switches are able to monitor the level of power going to each device in the network and manage its allocation accordingly, to ensure optimal power distribution and safety.

PoE switches have a number of potential uses across a variety of different industries, including in:

• Office networks: PoE switches can power VoIP phone systems, security cameras and wireless access points
• Industrial settings: Use PoE switches to connect security devices, or to run equipment that requires power and data concurrently
• Retail and hospitality: PoE switches can support point of sale systems, digital signage and WiFi hotspots and connections.
• Education and healthcare: A PoE switch can help power learning tools medical devices and security connections

There are three main types of PoE switches available. The ideal variant for your business will depend on the functionality you require, in addition to the management constraints of your organisation.

Managed PoE switches provide comprehensive control over the network and include unique management features. They are ideal for complex networks, where an appointed network administrator continually oversees the process. Admins control who has access to the various components of the network and are able to monitor its performance to identify issues and resolve them proactively.

Managed PoE switches support VLAN creation and feature advanced security measures and traffic prioritisation. Some also come with remote monitoring and control, allowing administrators to adjust network components on the fly. Managed PoE switches are ideal for network environments where the traffic can be closely and continuously monitored

Unmanaged PoE switches offer simplicity and user-friendly network operation. They are plug and play devices that require no configuration or management to run. Unmanaged PoE switches are usually used in smaller networks, or in scenarios where network management is not necessary. They offer the same reliability and performance benefits as a managed PoE switch, and can still transmit power and data at the same time. Unmanaged PoE switches are simple and cost effective solutions for straightforward network applications.

Stackable PoE switches are designed to enable easy management of scalable networks. The switches can be interconnected to function as a single unit, allowing for simple management of the network. Stackable PoE switches can also include redundancy, where the rest of the network can still function in the event that one switch fails. Stackable PoE switches simplify network administration and provide room for future growth in the network. They are ideal for businesses with expanding network needs. 

PoE switches differ from regular network switches in that they are able to deliver power to your network devices. Standard network switches are only able to handle data transmission, limiting the placement of your network devices and requiring extra cabling to supply power. PoE switches combine data and power delivery to add to the versatility of your network. PoE switches are a valuable addition to your network setup, particularly in scenarios where access to power outlets is limited. 

There are several benefits to PoE switches, including:

• Cost effective installation: By combining data and power transmission, PoE switches reduce the need for electrical wiring
• Increased flexibility: The versatility of PoE switches allows you to position your network devices in optimal locations, without needing to worry about access to power outlets.
• Enhanced safety: PoE switches deliver power at low voltages to minimise the risk of electric shock during installation and operation.
• Improved reliability: PoE switches offer centralised power management to help troubleshoot issues and make maintenance easier.
• Scalability: A stackable PoE switch makes it easy to respond to growing network demands by adding new devices to your network.

Contact us for more information on PoE switches and to view 4Cabling’s wide range of other network products. 

Do I need a PoE switch with an NVR?
In a network that includes IP security cameras and a Network Video Recorder (NVR), a PoE switch can help streamline the setup and improve its reliability. The ability of PoE switches to provide both power and data concurrently simplifies the network operation and enhances its efficiency.

Can a PoE switch be used as a regular switch?
Yes, PoE switches can transition to functioning as a regular network switch. They are able to transmit data to any connected network device, regardless of its requirement for power.

Can I connect two PoE switches together?
Stackable PoE switches can be interconnected to extend a network’s reach, or to increase the number of devices in the network. You can also connect PoE switches to enhance the reliability of a network, allowing it to still run in the event of one switch failing. Connected PoE switches allow for greater flexibility in your network setup and provide scalability for future projects.