Next Generation PoE - What You Need to Know

August 23, 2018 at 8:00 AM

 
What’s better than Power over Ethernet? More Power over Ethernet (PoE), of course – and that is exactly what PoE++ is delivering. PoE++ expands upon the traditional PoE benefits of delivering data and power over a single Ethernet cable, it increases power capabilities and extends PoE’s reach into new industries and applications. Here, we’ll tell you exactly what gives PoE++ those two extras plus signs.
 
First, let’s look at a numbers comparison. The first ratified PoE standard 802.3af supports 15.44 watts of power, but power dissipation usually lowers that number to a reliable 12.95 watts. Then PoE+ was introduced and bolstered power to 30.8 watts with the 802.3at standard, though power dissipation usually takes its toll and lowers power to 25.5 watts. PoE++ (the 802.3bt standard) will be capable of supplying more than 3 times the power of PoE+ with up to 100 watts (Type 4) of DC power and the ability to support 10 Gbps connections.
 
Traditionally, PoE has been used in networking applications. With PoE++, the technology’s reach is extended to include healthcare, point of sale, financial and surveillance industry applications. PoE++ utilizes all four twisted pairs of an Ethernet cable for optimal power transmission. It consists of Mode A and Mode B, and combines them to reach higher voltage levels. Mode A is also referred to as Type A, Type 3 or 4-pair PoE. It is specified for 60W, 50W reliable, and is able to support technology such as access controls, point of sale readers, IP cameras and nurse call devices. Mode B is also known as Type B, Type 4 or higher-power PoE. It is designed for 100 watts of power, 80 watts after power dissipation, and increases the capabilities to also include support of videoconferencing systems, laptops, desktops and televisions.
 
PoE++ is slated to bring more power, more conveniently to more devices than ever before. With all of the speed, convenience and capabilities that this new technology offers, it’s no wonder that PoE++ earned those extra plus marks.

Case Study: Lineage Logistics

May 10, 2018 at 8:00 AM

 

As the second largest cold storage thrid-party provider in the US, Lineage Logistics provides cold storage solutions for leading grocery, food and retail  companies.

 

During a wireless network roll-out in their warehouses, Lineage Logistics needed to add multiple access points inside refrigeration units with temperatures as low as -40 degrees. The company’s engineers had designed a wireless access point that fulfilled the needs of the project, but wasn’t able to function unprotected in the cold temperatures.

 

Lineage Logistics began searching for an enclosure that would protect their access point, offer Power over Ethernet (PoE) over a single cable and meet cost requirements.

 

After rejecting a competitor’s offering, as it didn’t fully meet the requirements, Lineage Logistics came to L-com for help. Our team was able to develop a comprehensive solution that met all their needs. We created a custom NEMA enclosure that could house the access point and provide plently of room if adjustments were needed. We were also able to save Lineage Logistics time and money on installation by mounting the access points in the enclosures and providing all required cabling and antennas.

  

L-com was able to not only meet, but surpass this client’s expectations with the perfect solution to their problem.

 

To read the full case study, click here.

 

Read All About It: PoE White Paper

August 3, 2017 at 8:00 AM

 

Power over Ethernet (PoE) is a revolutionary technique that provides both power and data in one Ethernet cable. PoE equipment eliminates the need to run power to remote network devices, which allows for greater flexibility and is ideal for remote locations where traditional power sources are not available. PoE can save time and money and is becoming more frequently used in wired and wireless connectivity applications with network devices such as wireless access points, switches and IP cameras.

 

Our white paper takes a deeper look at PoE, its history and how it is used in today’s telecommunications networks. Topics covered include:

 

History of PoE

  • -          How the IEEE was called upon to create the 802.3af standard to help the growth of the PoE market with a unified standard              to rely on
  • -          Power Sourcing Equipment (PSE)
  • -          Powered Devices (PD)

 

PoE Details and Variations

  • -          Mode A vs. Mode B
  • -          Mode A: Combining power via Phantom Powering
  • -          Mode B: Power over Ethernet spare pairs

 

Click here to read our PoE white paper.

 

All of our free white papers are available from our website by clicking here.

 

Cat6a - Taking Copper to the Next Level

July 28, 2016 at 8:00 AM

 

Copper cable has many advantages including flexibility, cost savings, and Power over Ethernet support– and now it can add lightning fast speeds to its list of attributes. Until recently, fiber cabling was the only way to achieve 10 Gigabit Ethernet data rates, but now Cat6a is taking copper to the next level with super-speed 10Gbps transmissions.

 

Cat6a cables can reach 10 Gigabit Ethernet speeds at frequencies of up to 500 MHz over low-cost copper cable. That makes Cat6a ten times faster than Cat6 and cheaper than fiber cabling. Cat6a is a high performance, cost-effective solution for moving large volumes of voice, video and data traffic over a network.  Its accelerated performance is perfect for use in data centers and storage area networks (SAN) that sometimes need to move terabits of data.

 

In addition to being fast, Cat6a supports longer distances than Cat6 with capabilities of up to 100 meters for 10GBASE-T. Cat6a cables are also backward-compatible with existing network infrastructure products, making for an easier migration path. Additionally, Cat6a cables are shielded which enhances overall performance and makes them more resistant to noise, interference and alien crosstalk.

 

With off the chart performance characteristics, Cat6a cables, couplers and other infrastructure products can take your network to the next level.

 

802.3bt PoE: Providing the Power of Possibility

July 30, 2015 at 10:00 AM

 

The realm of possibilities is expanding for Power over Ethernet (PoE) with the development of 802.3bt PoE.

 

The primary advantage of PoE is that it provides power to communication devices where no AC power source is available.  With no power lines to run, PoE saves on installation costs and makes configuration easier because the power source is within the data cables. More than one million devices are powered by PoE using the same cables that transmit Ethernet data.

 

However, the current version of PoE, 802.3at, peaks at 25.5 Watts, a modest power level that has limited use because many applications require more wattage.

 

The development of the 802.3bt standard will lift those power limitations with capabilities up to 49 Watts! 802.3bt PoE utilizes all four twisted pairs in Cat 5 and Cat 6 Ethernet cables providing more power. 802.3bt will be standardized with support for 10GBASE-T (10 Gbps Ethernet) and will be backward compatible with previous 802.3 versions.


PoE has evolved into a key technology for providing power and data simultaneously.  With 802.3bt PoE offering double, and possibly triple the power, new applications could extend to include 100 million devices worldwide and countless other possibilities.

 

As this new technology emerges, L-com will be developing innovative 802.3bt products and solutions to support your connectivity needs. In the meantime, we continue to support 802.3af and 802.3at applications with a wide range of products that help you save time and money with your wired and wireless networking installations.

 

 Click here to view our 802.3af and 802.3at products.

 

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