PoE+ Switches

Power over Ethernet (PoE) and Power over Ethernet Plus (PoE+) are technologies that enable the transmission of both data and electrical power through a single Ethernet cable. These technologies have become essential in modern networking, particularly for powering devices such as IP cameras, VoIP phones, and wireless access points. However, there are key differences between PoE and PoE+ switches that impact their applications, performance, and compatibility.     1. Power Delivery The most significant difference between PoE and PoE+ switches lies in their power delivery capabilities. PoE, defined under the IEEE 802.3af standard, can deliver up to 15.4 watts of power per port. This is sufficient for many low-power devices, such as standard IP cameras and VoIP phones. However, as the demand for more power-hungry devices has grown, the need for higher power delivery led to the development of PoE+. PoE+, defined under the IEEE 802.3at standard, can deliver up to 30 watts of power per port, nearly double the capacity of PoE. This increased power is necessary for devices like pan-tilt-zoom (PTZ) cameras, which require more energy for their motors, or for wireless access points that need to cover larger areas or support more users. The ability to deliver more power makes PoE+ a more versatile choice for environments with diverse device requirements.   2. Cable Requirements Both PoE and PoE+ switches use standard Ethernet cables, but there are differences in the type of cable required to maximize performance. PoE switches typically work well with Cat5e cables, which are sufficient to carry the 15.4 watts of power without significant loss. However, PoE+ switches, due to their higher power output, perform better with Cat6 cables or higher. These cables have lower resistance, which helps in minimizing power loss over longer distances, making them a better choice for PoE+ applications.   3. Device Compatibility Compatibility is another crucial factor to consider when choosing between PoE and PoE+ switches. PoE+ switches are backward compatible with PoE devices, meaning you can connect a PoE device to a PoE+ switch, and it will function properly, receiving the appropriate amount of power. However, the reverse is not true: PoE switches cannot provide sufficient power for PoE+ devices, which could result in devices not functioning correctly or at all.   4. Cost Considerations Cost is always a significant factor in any technology decision. Generally, PoE+ switches are more expensive than PoE switches due to their enhanced capabilities. The additional cost comes from the increased power output and the need for better thermal management and power regulation within the switch. However, the higher cost of PoE+ switches may be justified in environments where future-proofing is important, or where high-power devices are in use.   5. Application Scenarios PoE switches are ideal for environments with standard networking devices that have low to moderate power requirements, such as small offices or homes with basic IP phones, cameras, and access points. On the other hand, PoE+ switches are better suited for more demanding environments, such as large offices, campuses, or industrial settings where devices like PTZ cameras, advanced access points, and other high-power devices are deployed.   The choice between PoE and PoE+ switches depends on your specific needs. If your network consists of devices with lower power requirements, a PoE switch may suffice. if you’re planning to power devices with higher power requirements or anticipate future expansion of your network, choosing a higher POE standard (such as POE+ or POE++) might be beneficial. However, always make sure to verify compatibility, assess the capabilities of your existing infrastructure, and consider your specific needs before making a decision.make an informed choice that ensures your network's efficiency and longevity.    

Power over Ethernet (PoE) technology has revolutionized the way network devices are powered, allowing both power and data to be delivered over a single Ethernet cable. This has simplified installation and reduced costs across many industries. PoE standards have evolved over time to meet the growing demand for power-hungry devices, with PoE+ and PoE++ being two of the most important. Here, Benchu ​​Group walks you through the differences between PoE+ and PoE++, their applications, and considerations for choosing the right technology for your network.   1. Overview of PoE, PoE+, and PoE++ PoE (IEEE 802.3af): The original PoE standard, introduced in 2003, provided up to 15.4 watts of power per port, which was sufficient for devices like IP cameras, VoIP phones, and basic wireless access points (WAPs). PoE+ (IEEE 802.3at): Introduced in 2009, PoE+ increased the power output to 30 watts per port. This was a significant improvement, enabling support for more demanding devices such as pan-tilt-zoom (PTZ) cameras and dual-band WAPs. PoE++ (IEEE 802.3bt): The latest PoE standard, PoE++, was introduced to meet the power demands of even more advanced devices. PoE++ comes in two types: Type 3: Provides up to 60 watts per port. Type 4: Delivers up to 90 watts per port. This enhanced power capacity makes PoE++ suitable for powering devices such as high-definition PTZ cameras, large digital displays, and even some small networked appliances.   2. Key Differences Between PoE+ and PoE++ Power Output： The most significant difference between PoE+ and PoE++ is the amount of power each can deliver. PoE+ offers up to 30 watts per port, which is adequate for most standard network devices. However, as the demand for more powerful devices grew, PoE++ was developed to provide up to 60 watts (Type 3) or 90 watts (Type 4) per port. This makes PoE++ the better choice for environments with high-power needs. Pair Usage： PoE+ uses two pairs of wires within an Ethernet cable to deliver power, while PoE++ utilizes all four pairs. This difference allows PoE++ to transmit more power efficiently and support devices with higher power demands. Compatibility： Both PoE+ and PoE++ are designed to be backward compatible. PoE+ switches can power both PoE and PoE+ devices, while PoE++ switches can power PoE, PoE+, and PoE++ devices. However, the power provided will be limited to the maximum capacity of the device itself. This backward compatibility ensures a smooth transition when upgrading network infrastructure. 3. Applications of PoE+ and PoE++ PoE+ Applications PoE+ is widely used for devices that require moderate power levels. Some common applications include: Wireless Access Points (WAPs): PoE+ supports dual-band and tri-band WAPs that offer enhanced data transmission speeds. IP Cameras: High-definition cameras, particularly PTZ models, benefit from the additional power provided by PoE+. VoIP Phones: Advanced VoIP phones with color screens and video capabilities often require the extra power that PoE+ can provide. PoE++ Applications： PoE++ is essential for environments where devices have higher power requirements. Key applications include: LED Lighting Systems: PoE++ is increasingly used in smart building installations to power and control LED lighting systems. Digital Signage: Large, power-hungry digital displays, especially those used outdoors, require the high power output of PoE++. High-Power Wireless Access Points: As wireless networks evolve, the need for WAPs with multiple radios and higher data rates grows, making PoE++ a necessity. Building Automation Systems: PoE++ powers advanced building automation systems, including HVAC controls, security systems, and other IoT devices. 4. Choosing Between PoE+ and PoE++ Power Requirements The first factor to consider is the power requirement of your network devices. If your devices need more than 30 watts of power, PoE++ is the right choice. For most standard devices, PoE+ will be sufficient. Cable Infrastructure PoE++ requires all four pairs of wires in an Ethernet cable, meaning that your existing cabling infrastructure must support this. In many cases, upgrading to Cat6a or higher cabling may be necessary to fully leverage PoE++ capabilities. Cost Considerations PoE++ switches and infrastructure generally cost more than PoE+. Therefore, it's important to evaluate whether your network's power needs justify the additional expense. Future-Proofing If you anticipate the need for higher power devices in the future, investing in PoE++ can provide a degree of future-proofing. This ensures that your network infrastructure can handle new technologies without requiring a complete overhaul.   PoE+ and PoE++ represent significant advancements in Power over Ethernet technology, each addressing different network needs. PoE+ is ideal for powering standard network devices, while PoE++ provides the flexibility and power needed for more advanced applications. Understanding the differences between these standards will enable you to select the right PoE solution for your network's current and future power needs, ensuring optimal performance and scalability as your infrastructure evolves.