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How Power-over-Ethernet Technology Is Evolving To Accommodate Higher-Power IoT Solutions

Power-over-Ethernet (PoE) technology has been around for some time, but in recent years it has seen a resurgence as more and more industries move towards the Internet of Things (IoT). PoE is a key element of IoT solutions, providing power and data over existing infrastructure. The technology is evolving to accommodate higher-power requirements, allowing for faster deployment of IoT systems with greater efficiency and flexibility. In this blog post, we’ll take a look at how power-over-Ethernet technology is changing to meet the demands of the IoT market.

What is Power-over-Ethernet?

Power-over-Ethernet (PoE) is a technology that allows electrical power to be transmitted over Ethernet cabling. This enables devices that require power, such as VoIP phones, wireless access points, and security cameras, to be powered without the need for a dedicated power line or outlet. PoE has been around for many years and has undergone several iterations to accommodate the ever-increasing power needs of devices. The latest version of PoE, 802.3bt, can provide up to 100 watts of power per port, which is enough to power even the most power-hungry IoT devices.

The Different Types of Power-over-Ethernet

As the Internet of Things (IoT) continues to grow, so does the demand for higher-power devices. This has led to the development of new types of Power-over-Ethernet (PoE) technology that can provide more power than the traditional 15.4W PoE standard. Here are some of the different types of PoE technology that are available:

Type 1: This type of PoE provides up to 25.5W of power and is typically used for high-power devices such as video cameras and access points.

Type 2: This type of PoE provides up to 51W of power and is typically used for devices that require more power, such as VoIP phones and IP cameras.

Type 3: This type of PoE provides up to 100W of power and is typically used for industrial IoT applications or other high-power devices.

In addition to these three main types of PoE, there are also a few other emerging technologies that are worth mentioning. These include:

Multi-Port Power over Ethernet (MPPoE): This technology allows multiple devices to be powered by a single Ethernet cable. It is often used in situations where space is limited, such as in data center racks.

Power over Wireless (PoW): This technology uses wireless signals to transmit power, instead of using Ethernet cables. It is still in the early stages of development but has the potential to be used in a variety

Pros and Cons of Power-over-Ethernet

There are a few different types of Power-over-Ethernet (PoE) and each has its own advantages and disadvantages.

Traditional PoE uses what’s called the “spare pairs” in an Ethernet cable to carry both data and power. The advantage of this is that it doesn’t require any special cabling, which makes it ideal for retrofitting existing buildings with PoE devices. However, because it only uses two of the four available pairs in an Ethernet cable, traditional PoE has relatively low power capacity.

PoE+ (or “Power over Ethernet Plus”) is an enhanced version of traditional PoE that can carry more power. It does this by using all four pairs in an Ethernet cable, which increases the amount of power that can be carried while still allowing data to be transmitted simultaneously. The downside of PoE+ is that it requires specialized cabling, which can be more expensive than traditional Ethernet cabling.

The latest innovation in PoE technology is IEEE 802.3bt, also known as “Type 3 PoE” or “PoH” (Power over HDBaseT). This new standard can carry up to 100 watts of power, making it ideal for powering high-power IoT devices such as security cameras, digital signage, and industrial sensors. Unlike traditional PoE and PoE+, 802.3bt uses all four pairs in an Ethernet cable

What Devices Can Use Power-over-Ethernet?

Power-over-Ethernet (PoE) is a technology for supplying electrical power to devices over an Ethernet cable. It eliminates the need for separate power cables and outlets, simplifying installation and reducing clutter. PoE is available in two standards: 802.3af and 802.3at.

802.3af was the first PoE standard, released in 2003. It can provide up to 15W of power per port. This is enough to power most small devices, such as IP phones, WiFi access points, and security cameras.

802.3at was released in 2009 and increased the maximum power output to 30W per port. This is enough to power larger devices, such as pan/tilt cameras, video teleconferencing systems, and digital signage displays.

PoE+ (802.3at Type 2) is an enhanced version of 802.3at that supports up to 60W of power per port. PoE+ is required for certain high-power devices, such as PTZ cameras, WiFi access points with external antennas, and multi-port switches

Conclusion

Power-over-Ethernet technology is a revolutionary way to provide power and data through cable networks. This technology has presented multiple advantages to those running IoT solutions, such as reducing the number of cables and deployments costs. As this technology continues to evolve in order to accommodate higher-power consumption from today’s IoT devices, we can expect even bigger improvements down the line. Power-over-Ethernet will continue to be an important factor for businesses looking for cost efficient solutions that can support their growing IoT needs.

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