Which IEEE standard is used for Ethernet over power lines
|
Skip to content
Home|IEEE 1901-2020 – IEEE Standard for Broadband over Power Line Networks: Medium Access Control and Physical Layer Specifications Show
Related Posts Contact Power Plus Communications AG Phone: +49(0)621/40165-100 Use our form to get in touch with the responsible person. Your request will be answered as soon as possible. Contact requestIn our newsletter we inform you about our innovations, projects, events as well as news in the field of intelligent measuring systems, smart meter gateways and communication technology. Newsletter Subscription
What Is PoE in Networking?Power over Ethernet delivers electrical power to PoE-enabled devices using your CATx network cables. Because you don’t need to run electrical wiring, PoE saves money in materials and installation time. It’s also flexible, especially for remote applications, since it doesn’t require a nearby electrical outlet. These and other benefits have led to a sharp increase in PoE’s popularity in recent years. However, the limiting factor has always been power. How Does PoE Work?The way it works is simple. Ethernet cable that meets CATx standards consists of four twisted pairs of cable, and PoE sends power over these pairs to PoE-enabled devices. First PoE standards use two twisted pairs to transmit data, while the remaining two pairs are used for power transmission. With the new PoE standards, power and data are both sent over all four twisted pairs. When the same pairs are used for both power and data, the power and data transmissions don’t interfere with each other. That’s because electricity and data are transported at opposite ends of the frequency spectrum. Electricity has a low frequency of 60 Hz or less, and data transmissions have frequencies that can range from 10 million to 100 million Hz. What Is the 802.3at PoE Standard?The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power on each port. The updated IEEE 802.3at-2009 PoE standard, also known as PoE+ or PoE plus, allows for up to 30 W of power to Type 2 devices. That’s sufficient power for devices such as VoIP phones, wireless access points, and security cameras. But it’s not enough for technology like flat screen displays, LED lighting, or retail POS terminals. Introducing the 802.3bt PoE StandardTo meet the demand for higher power, the IEEE released a new PoE standard at the end of 2018, to significantly increase capacity. IEEE 802.3bt allows for up to 60 W to 100 W of power at the source by providing power over four pairs of wires (compared to the previous technology’s ability to power over just two pairs). This increase in power allows you to use PoE for a greater range devices and applications. As an added benefit, the new standard will boost energy efficiency by minimizing power loss in the cable, potentially cutting power loss in half. The new standard will include support for 2.5GBASE-T, 5GBASE-T and 10GBASE-T, while existing standards have a maximum speed of 1-Gbps. This new support will create intermediate data speeds between existing standards. Previous PoE technology included PoE Type 1, also called IEEE 802.3af, and PoE Type 2, better known as 802.3at or PoE+. Both utilise 2-pair Power over Ethernet, Type 1 with a maximum of 15.4 W per port and Type 2 with a maximum of 30 W per port. With the new 802.3bt standard come two new options: Type 3 and Type 4. Type 3 is also called 4-pair PoE, 4PPoE, PoE++, or UPoE. It provides 60 W of power per port and is ideal for video conferencing equipment, multi-radio wireless access points, PTZ cameras, and building management devices. Type 4 (another designation is high-power PoE) offers the highest power capabilities, potentially up to 100 W of DC power (71.3 W to each device), and can support flat screens and laptops. For more detailed specifications on PoE Type 4 and other types, you can refer to the following table.
PoE Applications and Benefits
Black Box offers a wide range of PoE products that allow you to take advantage of higher-power capabilities of PoE such as the following: PoE Ethernet SwitchesPoE Ethernet Switches can act as a power source equipment besides their usual functions. They inject power into the Ethernet cable to power the attached PoE-enabled devices such as wireless access points and security cameras. Find out more about PoE Ethernet Switches. PoE SplittersPoE Splitters receive a PoE signal with data and power. They separate data and power onto two different lines to support non-PoE devices. Find out more about PoE Splitters. PoE Repeaters/ PoE ExtendersEnable extension of PoE connections beyond the 100-meter limit to access far away PoE devices such as access points, cameras, and VoIP phones. Find out more about PoE Repeaters / Extenders. PoE Media ConvertersPoE Media Converters are the ideal way to extend your network over fibre or copper and also provide power to remote PoE devices to long-distance data links. They act as a copper to fibre converter and power source equipment all in one device. Find out more about PoE Media Converters. PoE InjectorsPoE injectors carry data and power simultaneously over a single Ethernet cable. These type of Injectors power various VoIP phones, security system cameras, wireless network access points, Bluetooth® access points, and other 802.3af-compatible equipment. With it, you avoid the cost and hassle of installing AC power at remote cameras, access point, or thin client. Move equipment from room to room without costly, time-consuming rewiring. Find out more about PoE Injectors. Related ProductsWhich IEEE standard is used for Ethernet over powerlines?IEEE 802 wireless standards. IEEE 802 is a collection of networking standards that cover the physical and data-link layer specifications for technologies such as Ethernet and wireless.
What is IEEE 802.3 also known as?IEEE 802.3 is also known as the Ethernet standard and defines the physical and media access control (MAC) of the data link layer for wired Ethernet networks.
What is IEEE standards Ethernet?Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s by IEEE 802.3 standard. IEEE 802.3 defines the physical layer and the medium access control (MAC) sub-layer of the data link layer for wired Ethernet networks.
Is IEEE 802.3 still used?Ethernet, IEEE 802.3, is one of the most widely used standards for computer networking and general data communications. It is widely used in all forms of data networking from connecting to a variety of devices in the home including Wi-Fi routers to business data networks and telecommunications networking.
|
