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Samsung Small Signage meets the reliability and durability demands of your business environment. With performance guaranteed for 16 hours a day, 7 days a week, and supported by a two-year warranty*, you can confidently operate the small-sized display at the pace of your business.

Samsung Small Signage also promotes the connectivity your businesses needs with fast and convenient content management. The DBE-PoE (Power-over-Ethernet) display features an integrated network and power connection for clutter-free installation. Additionally, the DBE-PoE offers embedded ports for HDMI and SD cards to accommodate a range of user device and content upload needs. Through the reliability and convenience of the Samsung Small Signage with PoE solution, your business no longer has to rely on consumer-oriented tablet alternatives that can malfunction after extended use or require complex, multi-cable installation to generate power and signal input.

Equipped with a variety of integrated technologies, Samsung Small Signage enables you to deliver interactive and informative content with fewer external resources required. For space-conscious businesses, the DBE-PoE display offers a minimalistic connection format conducive to multiple device usage. Instead of requiring two separate cables for power and network connectivity, the PoE-enabled display just needs one cable to deliver a high-speed network connection while supplying 30W of power at the same time. The elimination of cables and adapters ensures tidy installation, especially when multiple displays are installed in one location. In this way, the DBE-PoE minimizes visual distraction and enhances the visual appeal of your business environment and digital signage for customers.

Deliver myriad rich content with DBE Series built-in media player and simplified management through 3rd Generation Samsung SMART Signage Platform (SSSP). An internal memory upgrade from 4 GB to 8 GB enhances the displays’ usability. The embedded, all-in-one 3rd Generation SSSP eliminates the need for a separate PC or media player to streamline digital signage operation and improve total cost of ownership (TCO).

Heighten efficiency and productivity with a newly designed Home Menu UI that displays frequently used functions in a new, large-button matrix design. Simplify usage with a selection of customizable menu configurations that allow ready access to repeatedly used menus. Generate content more easily and conveniently than ever with the Home Menu’s newly designed templates for various vertical markets including grocery stores, QSRs, terminals and lobbies. Leverage these sharp, professional template layouts to produce and design content in either portrait or landscape orientation. And, turn the Home Menu into a touch-activated user experience by adding an optional Touch Overlay.

While small- and mid-sized businesses (SMBs) and small office/home office (SOHO) business owners may not need to connect several displays with real-time or frequently-changing data as larger retail and corporate content managers require, they still value the convenience and efficiency of effective content management. As an alternative to MagicInfo DataLink, Samsung’s Data Module solution is specifically designed with SMB and SOHO users in mind. Instead of requiring a MagicInfo server and DataLink license fee, the embedded Data Module connects with a business owners’ existing local data storage*. Information is then shared automatically from the data storage and transmitted to the MagicInfo Author tool. Using Data Module-capable Samsung Small Signage, SMBs and SOHO business owners can thus share timely and informative content more effectively with a reduced total cost of ownership (TCO).

For retail, corporate and transportation environments where multiple displays are installed and need to be remotely managed, such as QSRs, grocery stores, conference rooms and airport terminals, the time and effort required to update frequently-changing data in real-time can strain business operations and staff effectiveness. As a server-based content management solution, Samsung Small Signage’s MagicInfo DataLink content management program* is ideally suited to address these demanding usage scenarios.

The MagicInfo DataLink solution allows content managers to easily and instantly update information across displays based on frequently changing data, such as exchange rates and customer waiting lists, as the DataLink server and MagicInfo Author tool automatically share information from a user-designated administrative server. As a result, you can retrieve, update and transmit content and improve customer awareness and satisfaction with greater convenience and less effort required.

Thank you for submitting for an online estimate with us. Your project confidentiality is safe with us as we will consider this information as an implied Non-Disclosure Agreement. Also, please note, these are preliminary estimates to help you get a sense of the scale of PoE Automation. If you"d like a personalized quote, we"re happy to get you in contact with a PoE estimating expert.

The design of power supply sections for all powered devices can be greatly simplified with the PM880x family, integrating a PoE interface and a current-mode PWM controller. The PoE interface incorporates all the functions required by the communication standard, including detection, classification, undervoltage lockout (UVLO) and in-rush current limitation.

Power over Ethernet (PoE) solutions enable Ethernet cables to transmit DC power while simultaneously transmitting data in parallel to IP terminal devices — all without changing the existing wire connections set by the Ethernet standard. Transmitting power and data in one cable simplifies installation, enhances reliability, and reduces cost by eliminating the need for a power and Ethernet line, which makes PoE devices a popular choice for equipment rooms and offices, as well as older buildings where it may be inconvenient to install new power lines.

This article will provide an overview of PoE PD design, discuss challenges faced by designers implementing these systems, and describe how to optimize a PoE PD design using the MP8017 — an integrated PoE PD and flyback power converter — to verify the recommendations.

In 1999, the IEEE and Ethernet Alliance endeavored to standardize PoE, with the goal of ensuring interoperability across a broader range of connected powered devices (PDs) and power sourcing equipment (PSE). The first of these standards, IEEE 802.3af, was ratified in 2003. This standard specified that the power must be able to be carried by either spare pairs or data pairs within a single cable. Today’s PoE standard is the IEEE802.3bt (90W), which covers additional applications such as 5G small cells, display units, and AP routers. Figure 1 shows a timeline of the IEEE PoE standards, beginning with the ≤10W standard in 1999.

PoE devices are assigned a class (Class 0 through 8, for a total of nine classes) based on the power they require. The 802.3af standard covered Class 0 to Class 3, with voltages ranging between 37V and 57V, and output power up to 15.4. These devices are recommended for sensors and simple cameras.

The 802.3at standard (also known as PoE+) introduced Class 4, which raises the output power to 30W across the same voltage range, though these devices are only compatible with PoE+ PSE. These devices can be used in complex cameras, LCD displays, and tablets.

Lastly, the 802.3bt standard (also called PoE++) introduced Class 5 through Class 8, with output power between 45W and 90W. These devices can support laptops, TVs, and electrical systems in buildings. Figure 2 summarizes these power classes and their related input voltages, input powers, and output voltages.

PD check: The PSE sends a test voltage (<10.1V) to the PD resistor (24.9kΩ). If the impedance values match, this indicates the presence of a standard PoE device.

PoE devices face a few challenges, the first being efficiency. Although PoE devices incorporate both power and data transfer, they can have lower efficiency if they are not designed correctly. In particular, designers must optimize the power circuit to reduce components’ impedances and select an optimal transformer to improve efficiency.

In addition, the high amount of power transfer creates audible noise, which can affect a device’s ability to meet modern EMI standards. When unregulated, EMI can degrade devices in the surrounding area and reduce a system’s lifetime. PoE devices that supply more power are physically larger, which can take vital room in space-constrained applications.

Figure 5 shows a typical 15W PoE PD power circuit. Due to the number of required components, this circuit is complex and bulky. The optocoupler and TL431 voltage regulator alone comprise their own circuit system with numerous components.

Full integration: For PoE devices, a completely integrated solution is an excellent way to keep a solution compact. Common questions for PoE solutions include “Can this system include a PD and a DC/DC converter?” and “Can the solution include a hot-swap MOSFET and power MOSFET?”

The MP8017 PoE PD solution uses a new feedback method, called Gen 2 PSR feedback. This system does not require auxiliary winding or an optocoupler (see Figure 7). Instead, the device samples the output voltage (VOUT) from the SW pin. Benefits of this method include:Simplified design circuit since the transformer does not require auxiliary winding

Output capacitance: A conventional PoE device has a typical frequency of about 250kHz, and requires electrolytic capacitors to reduce the output ripple. If fSW increases, the number of output capacitors can be reduced. For example, when fSW is 650kHz, a 12W application only needs two ceramic capacitors with a 0805 size. In addition, by utilizing continuous conduction mode (CCM) control, the transformer’s secondary side peak current is smaller. A smaller peak current further reduces the output ripple caused by the output capacitor’s ESR and the layout board’s resistance. Figure 9 compares the secondary current in both CCM and discontinuous conduction mode (DCM).

PoE is an innovative concept that continuously rises to meet the growing power demands of modern technology. Despite its general reliability, it can be difficult for designers to maintain a high efficiency with these solutions, though implementing a few optimization methods can help mitigate these issues. The MP8017 confirmed that selecting optimal transformers, snubbers, and output capacitors — as well as implementing frequency dithering and integrating components onto a single die — are effective methods to guarantee efficient without hindering performance.

Network switches form the backbone of any Local Area Network, or "LAN" (pronounced "lan") for short. On this page you will learn what differentiates a PoE enabled switch from a regular LAN switch, when you should use a PoE switch versus a PoE injector and, what exactly is PoE (Power over Ethernet) technology.

Power over Ethernet (PoE) is technology that passes electric power and data over twisted-pair Ethernet cable to wireless access points, IP cameras, and VoIP phones. It enables one RJ45 patch cable to provide both a data connection and electric power to connected edge devices instead of having a separate cable for each. Read more about Power over Ethernet (PoE) here.

A PoE switch is a regular Fast Ethernet or Gigabit network switch that has Power over Ethernet functionality integrated. A Power over Ethernet switch both enables communication among network clients and provides power using the same RJ45 network cable to PoE-enabled edge devices, such as VoIP phones, network surveillance cameras or wireless access points. A PoE switch allows compatible devices to work in places where power outlets or network connections don"t exist. This primary function of PoE can save businesses lots of money on the costs of installing electrical and network wiring (more on that below) while still having edge devices work where they are needed. PoE switches exist in many different variations.

Most common Power over Ethernet switches provide Gigabit speeds (1000 Mbps) to connected devices. However, Fast-Ethernet (100 Mbps) is still around, and for many PoE edge devices, that is plenty of speed.

To meet more complex network requirements, a managed PoE switch can do much more than just direct traffic where it must go and give power to devices. Among its many functions and benefits, a managed PoE switch can segment network traffic into groups and give much greater insight into the status of the network, the connected clients, and its power status.

Some unmanaged PoE switches have an LCD display on the front panel. These LCD status screens provide network admins with real-time power information, such as how much power each connected PoE device consumes, the combined used-power total of all connected devices and the total power available. It also very useful in giving alerts about potential problems and warnings for overload, high temperature, short-circuit protection and others.

It costs a lot of money to bring standard power to locations where there is not any. For example, say you want to add cameras to the part of a warehouse that does not have power outlets. Without PoE, you would need to consult a certified electrician since a network administrator would very likely be unable to complete the electrical installation. However, with the low-voltage application of Power over Ethernet, anyone can run network cables (or PoE network cables) from the cameras to a PoE switch. Using PoE means you also avoid the need of installing power outlets, electrical wiring and breaker boxes, which saves even more money.

PoE edge devices can be easily deployed in locations without power outlets. Since they no longer face the limit of needing a standard outlet to work, those previously hard to reach places can now be accessed with more ease. Installing a PoE network camera high up on the wall or the roof isn’t as daunting a task anymore since you only need one network cable to get power and network connections.

A very helpful feature of managed PoE switches is that you can access them over the Internet or local network. This access includes being able to remotely power-cycle edge devices that may have failed. The network camera that crashed or the VoIP phone that needs a reboot no longer needs physical intervention from a person on location. All that is needed for the required restart on either device is to initiate one via the switch management interface.

Some Managed Power over Ethernet Switches can monitor all connected PoE devices and automatically initiate the restart of a device that has failed to communicate for a defined period. Such a feature can be especially useful, for example, in case a security camera stops working in the middle of the night.

Deciding whether to use a PoE switch or a PoE injector comes down to how many PoE devices you need to connect. Individual PoE devices, such as the odd network IP camera at the building site or the single wireless Access Point, can be connected via PoE injectors without an issue. As soon as you need to connect more PoE devices, a PoE switch is the better choice. If a new network is installed, a sure way of future-proofing the installation is to use managed PoE switches, which can power all VoIP phones and isolate and prioritize voice traffic.

A Power over Ethernet (PoE) pass-through switch is a special type of PoE switch that gets its power from an upstream PoE switch or injector and passes power to other PoE devices, such as VoIP phones and cameras. In short, the PoE passthrough switch operates as both a PD (powered device) and PSE (power sourcing equipment) at the same time.

Here is an example of how it operates: The PoE-powered Passthrough switch receives 30 watts from a high-power PoE injector or PoE switch. The pass-through switch takes around 5 watts for itself to power its internal circuitry so it can function as a network switch. It then passes the other 25 watts on to power other connected PoE devices, which lets it function as a PoE switch.

Getting a basic idea of the amount of power per port you need so your PoE devices can work is good way to know what type of switch you should buy. You do not want to get a switch that does not have enough power per port for the mix of devices you want to connect. How much power per port is available on average for PoE devices depends on the following factors:

Example:Consider a managed 24-port Gigabit PoE switch that has a 430-watt PoE budget. Checking the spec sheet of the switch, you find the maximum power consumption to be 500 watts. Based on those numbers, you would get:

While some devices you connect to a PoE+ switch may use up to 30 watts per port, some may also not use that much. However, all the PoE devices you connect will deplete the available power budget. So, if you connect 10 PoE+ devices that draw 30 watts each to the switch above, your average power port for the remaining 14 devices will only be around 9.28 watts instead of the original 17.9 watts. If the rest of the devices you want to connect will work on that amount of power, that"s great. If they will not, you should consider getting another switch to accommodate the rest of the devices that need more power per port.

The typical Power over Ethernet switch costs a lot more than its non-PoE-enabled sibling. Take care when planning the network. How many PoE ports do you need now? How many PoE ports will you need in the future? Will a few PoE injectors in strategic locations satisfy the requirements?

If the PoE switch fails, the consequences are dramatic. Your entire phone system could be down, or your security cameras could be offline. Even non-PoE devices would be affected. As a precaution, backup power via a UPS is considered mandatory, and having an action plan in place for the scenario where a mission-critical component like a PoE switch fails is good practice. In fairness, this drawback is hardly exclusive to Power over Ethernet switches and applies in equal measure to regular Ethernet switches.

The Intellinet Network Solutions 24-Port Gigabit Ethernet PoE+ Switch with 2 SFP Ports (561242) passes both data and electrical power to a number of PoE-compatible devices via standard Cat5e or Cat6 network cables. Equipped with 24 Gigabit Ethernet ports, this switch can power wireless LAN access points and bridges, VoIP phones, IP video cameras and more while delivering network speeds of up to 1,000 Mbps.

This high-powered switch supports the IEEE 802.3at protocol and can inject up to 30 watts of power per port*. IEEE802.3af- or IEEE802.3at-compliant devices attached to the switch require no additional power, thus eliminating the time and expense of electrical rewiring and minimizing the unsightly clutter caused by power supplies and adapters in awkward places such as ceilings and walls. Any mix of PoE and non-PoE devices is supported, and thanks to its short-circuit, overload and high-voltage protection function, your equipment is well-protected. For devices that are not 802.3at/af compliant (legacy wireless access points or network cameras), we suggest the use of an Intellinet Network Solutions PoE/PoE+ Splitter.

The Intellinet Network Solutions 24-Port Gigabit Ethernet PoE+ Switch with 2 SFP Ports is equipped with an LCD status screen on the front that provides real-time power information. This includes how much power each connected PoE device consumes, the combined used-power total of all connected devices and the total power available. Additionally, the LCD screen informs users of potential warnings for overload, high temperature, short-circuit protection and others. Thanks to this feature, you are always informed about the status of your PoE switch with a glance at the screen.

Cisco developed and first delivered a proprietary version of PoE in 2000, to enable scalable and manageable power delivery to Cisco IP-telephony handsets.

Emulating how traditional PSTN (public switched telephone network) landline phones operate--delivering 48V DC power over the same copper cabling used for communications--PoE initially took advantage of unused pairs of the four twisted pairs of copper wires found in typical Category 5 (Cat 5) cable.

In 1999, both the IEEE and the Ethernet Alliance started working to standardize PoE to ensure interoperability across a broader range of connected powered devices and power sourcing equipment. The first of these standards, IEEE 802.3af, was ratified in 2003 and specified that the power must be able to be carried by either spare pairs (pins 4 and 5 or pins 7 and 8) or data pairs (pins 1 and 2 or pins 3 and 6).

The standard also includes a mechanism to protect devices that do not support PoE: A 25-kW resistor is added between the power pairs on the powered device, and the power source provides power only if something close to that resistive value is detected.

The value of PoE was quickly realized. Transporting both power and data across a single cable not only reduced cabling needs but improved safety and simplified installation, thus saving time and reducing cost. The value of PoE in turn amplified the need for more power to support a wider variety of end devices, resulting in several additions and improvements to the 802.3af standard.

IEEE 802.3at, known as PoE+ or Type 2, was ratified in 2009 and increased power to 30W. In 2011, Cisco pioneered 60W Cisco Universal Power Over Ethernet (UPOE), leveraging all four twisted pairs and leading to the IEEE 802.3bt standard defining 4PPoE Type 3. In 2018, the 802.3bt standard was amended to increase the maximum power to 90W from the power source known as 4PPoE Type 4.

With each power increase, cabling requirements also increased, with Cat 5 cabling being the minimum requirement for Type 3 (60W) and Type 4 (90W) PoE.

While PoE has been a staple in offices worldwide, 90W PoE opens the door to a new world of options, powering devices ranging from LED lighting, kiosks, occupancy sensors, alarm systems, and cameras to monitors, window shades, USB-C-capable laptops, and even air conditioners and refrigerators.

It"s almost certain that 90W PoE will also herald major changes for smart-building and industrial applications. The combination of data and power in one Ethernet cable will accelerate the already rapid transition to Ethernet-based industrial control systems as well as the consolidation of traditionally separate operational technology (OT) (such as HVAC, lighting, and security/alarming) with IT-managed devices (IP phones, printers, computers, etc.).

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Power over Ethernet (PoE) is a standard that allows Ethernet cables to transmit data and power simultaneously using a single network cable. This allows system integration and network installers to deploy powered devices in locations that lack electrical circuitry. In addition, PoE eliminates the expense of installing additional electrical wiring, requiring professional electrical installers to ensure that strict conduit regulations are followed.

PoE technology sends 10/100/1000 Mbps of data and 15W, 30W, 60W, and up to 90W of power budget to devices over Cat5e, Cat6, Cat6a. Cat7 and Cat8 Ethernet cables for a maximum distance of 100m.

PoE technology relies on the IEEE 802.3af, 802.3at, and 802.3bt standards set by the Institute of Electrical and Electronics Engineers and governs how networking equipment should operate to promote interoperability between devices.

PoE-capable devices can be power sourcing equipment (PSE), powered devices (PDs), or sometimes both. The device that transmits power is the PSE, while the device that is powered is a PD. Most PSEs are either network switches or PoE injectors intended for use with non-PoE switches.

Midspan PSEs are characterized as “intermediary” devices deployed between a non-PoE-capable PSE with a PoE-capable PD. Examples of midspan PSEs include power injectors or power hubs. On the other hand, endspan devices refer to the main PSE in a network, such as a switch.

PoE-compatible devices do not adhere to IEEE standards; however, they may be reliable alternatives that require installers to ensure the correct modes are used for their networks. For example, PoE-compatible PDs will most likely support only Mode B. However, this varies from manufacturer to manufacturer, and there is no guarantee that they will support both power modes.

Similarly, PoE-compatible PSEs, such as injectors, can support either mode, but there will be no guarantee that they will support both modes. Therefore, when using PoE-compatible devices, it is vital that network installers and system integrators check specification data sheets to verify that their prospective units meet the power modes their network uses.

The Institute of Electrical and Electronics Engineers (IEEE) is responsible for creating PoE standards. Click here to learn more about IEEE’s standardization process. There are currently three PoE standards available. The 802.3af standard supports 15.4W of power. But even though 802.3at power sourcing equipment (PSE) can transmit 15.4W of power, powered devices (PDs) can only reliably receive 12.95W of power due to power dissipation.

In 2009, the IEEE introduced the 802.3at standard (also known as PoE+). This standard supports 30W of power, but similarly to the 802.3af standard, power dissipation causes PDs to receive slightly lower amounts of power, specifically 25.5W of power.

802.3bt (also known asPoE++) was ratified in 2018 and has two types (Type 3 and Type 4) offering higher power. The 802.3bt (Type 3) standard supports 60W of power, with PDs receiving 51W. The 802.3bt (Type 4) standard supports 100W which dissipates on the receiving end to 71.3W. This new standard essentially combines Mode A and Mode B to achieve the higher voltage and support 10 Gbps connections.

The higher power budget is particularly crucial for PoE lighting systems and platforms and for the other smart technologies currently being adopted. As businesses move further into smart technologies, automation is also inching its way into the picture. For example, smart PDs are automated—and automation needs more power. The smart device customer is becoming aware of what is possible with Ethernet power delivery and the IEEE 802.3bt standard and is taking steps to upgrade their supporting infrastructure accordingly.

To prevent over-powering a PD, which can shorten the lifespan of the unit, IEEE-compliant PDs that rely on PoE are classified into different classes. PoE classes ensure efficient power distribution by specifying the amount of power that a PD will require. PDs that need less power than the closest PoE standard receive a low-ranking power classification and allows the PSE to allocate the surplus amount of power to other connected devices. In addition, low-power PDs require smaller cooling switches as the lower wattage output will not generate much heat. On the other hand, passive PoE adapters always relay the same amount of power at all times and are usually described as “non-standard.” Different PoE class types effectively help negotiate power between a PSE and PD. For example, the following chart indicates the amount of power allocated to different class types for the 802.3at, 802.3af, and 802.3bt standards.

PoE installation costs are far less than installing traditional wiring, and the operating costs are far more efficient. One twisted-pair cable delivers both data and power to devices. Existing copper from legacy phone systems can also be repurposed. In addition,PoE injectors and splitters save money by allowing IT pros to combine legacy devices with newer, more efficient PoE networking components. They also enable organizations to add remote devices without having to install electrical infrastructure. Injectors and splitters are designed to provide power to and from non-PoE compliant equipment. These inexpensive units will add years to a legacy system and save thousands of dollars by bypassing the installation of electrical outlets in remote locations.

PoE devices adapt to changing environments. They can be easily moved and reconnected at the switch level and easily integrate into changing network configurations. PoE is plug-and-play. An entire network does not need to be brought down to add or subtract devices.

PoE Type 3 voltages are typically less than 60V, and Type 4 is less than 90V. Conduits and metal cladding are not required. Fewer steps and hazards and the straightforward use of one Ethernet cable remove the need for a licensed electrician.

PoE technology is perfect for data collection. For example, analytics software can help facilities groups to determine when an area is occupied and when LED lighting and HVAC components may be turned off. As a result, operational costs can be much lower based on actual usage.

PoE can transmit 100 meters from the switch or hub to the Network interface controller (NIC), regardless of where the power is injected. The limitation is not the power; the Ethernet cabling standards limit the total length of cabling to 100m, the furthest distance a PoE switch can transmit simple data over Ethernet. A PoE Ethernet extender, however, can lengthen that span up to 4,000 feet. Extenders allow centralized control across a wide area for networks spanning enterprises, campuses, and large retail operations like shopping malls.

Legacy devices (those that are not PoE compliant) require either an injector or a splitter. PoE delivers power AND data over one cable and, therefore, one input. Legacy devices receive data and power separately.

PoE splitter: Also supplies power, but it does so by splitting the power from the data and feeding it to a separate input that a non-PoE compliant device can use

PoE devices supply power according to the device IEEE 802.3 standard generation. The life-cycle generation is indicated by the extension: “af”, “at” (PoE+),or “bt” (PoE++ or UPoE). The following chart provides a side-by-side comparison of the maximum power each PoE Type delivers at the port level.

PSEs (such as switches and hubs) come with a predetermined Total PoE Budget. On the other hand, PDs (such as VoIP and IP cameras) come with various wattage demands, and the total must be less than the PSEs’ Total Point Budget.

For example, an 8-Port PoE Desktop Gigabit switch has a Total PoE Power Budget of 130W and is 802.3af-compliant. Therefore, if used at total capacity, the maximum yield per port would be 130W divided by eight ports, which is 16.25W per port, rounded down to the nearest standard (in this case, the 802.3af standard). Because 802.3af PDs only draw 15.4W of power, the remaining power will stay unused, so the PDs are not overpowered. Even though the device has eight ports, network administrators must not make the mistake of assuming that the switch can be filled at a total capacity with 802.3at devices. To calculate how many 802.3at devices a unit supports, simply divide the Total PoE Budget by the Maximum PoE Output. With our example switch shown above, we divide 130W (Total POE Budget) by 30W (Maximum PoE Output) to get 4.33 (which we round down to 4). So, our example switch can service four 802.3at devices. Calculating the max amount of 802.af devices is just as simple: Divide Total PoE Budget by 15.4 watts.

Each PD gains access to the network data through an Ethernet cable. Before PoE technology came on the scene, in addition to an Ethernet cable, each device also required a separate power cord. As the number of devices began adding up, managing all these cables was time-consuming and messy. The solution to cable mess came by combining data and power delivery over a single Cat5 Ethernet cable. Today, Ethernet cables are divided into Cat5 (nearly obsolete), Cat5e, Cat6, Cat6a, Cat7, and Cat8, each providing a higher noise and signal interference protection rate, respectively. The PSEs supporting these PDs have not changed, though. They are either PoE switchesorPoE injectors. Knowing the best one for your implementation is the key to saving time and money. And, you will see that knowing which is not difficult once you understand the unique features of either.

There is a range of PoE equipment available for a variety of networking environments.Industrial PoE, for example, is made to withstand the extreme temperature demands characteristic of harsh industrial environments. Outdoor PoE gear often comes enclosed in a protective encasement to protect against the elements. Also, network installers need to ensure that their PSEs allot a sufficient PoE power budget to support the desired amount of PDs.

A PoE switch is a network switch that can provide Power over Ethernet from each interface while still being able to forward frames. Both managed and unmanaged PoE switches are available. A PoE switch requires one Uplink to an existing network to further expand and increase ports.

An IT network switch is a multiport network hardware device that connects computers and smart devices and allows them to send and receive data. The PSE supports the transfer of data between MAC addresses over the data link layer. As the PoE switch (or injector, for that matter) connects to a device, it automatically determines whether that device is PoE compatible and whether it needs power. By making sure any new switches are PoE switches, you can ensure any PoE devices you need can easily connect to your network in the future. You are also ensuring that you can connect non-PoE devices, as they will support both without the risk of damage. An automatic step-down feature allows each device to detect a PD’s presence and determine whether it receives data or data and power. The IEEE PoE protocol also enables a PoE to switch (or injector) to detect the power level it needs to deliver. The delivery standard and amount of power each device needs is automated; however, you can determine the requirements by looking at the IEEE 802.3 extension. For example, a Type 1 device (IEEE 802.3af) can safely receive up to 15.4W of DC power. A Type device (IEEE 802.3at) accepts up to 30W.

The Versa switches that are PoE capable may be found on our PoE switch page. There are informational acronyms marked on the external chassis of each switch. Following are the acronyms and their meanings:

When it comes to maintaining a network, businesses need to assess their network demand to determine whether they need to choose between unmanaged PoE switches or managed PoE switches. Unmanaged PoE switches are relatively inexpensive, and their fixed configuration makes it easy to install the plug-and-play device. However, that is not to say that unmanaged PoE switches do not come with other hardware features. For example, unmanaged PoE switches can offer a redundant power input, extended operating temperatures, a nearly noise-free operation, among other hardware features. Many network administrators with heftier network demands opt for managed PoE switches. Many of these devices feature port-mirroring and, with the help of a protocol analyzer, can monitor the activity of incoming traffic, thus facilitating troubleshooting. Managed PoE switches also allow network administrators to monitor and prioritize traffic, set up VLANs, and program them through interfaces, such as Telnet, SNMP, or console. If you seek to update your network, visit our website for a more comprehensive collection of PoE switches, gigabit switches, managed Ethernet switches, and certified Industrial switches.

PoE injectors are midspan devices commonly deployed between a non-PoE-capable switch and a PoE-capable PD (such as an IP camera). PoE injectors add (or inject) power to a network cable to ensure that a connected PD can receive power and operate without a connected DC power supply. In short, a PoE injector makes a non-PoE PSE compatible with a PoE-capable PD. Thus, when spending the money for a switch is not practical, PoE injectors provide a versatile solution when fewer PoE ports are required.

The VX-Pi100 is an 802.3af-compatible PoE injector that can power connected devices like WAPs, VoIP phones, IP cameras, and HDMI extenders. Similarly, the VS-Pi1000GB-30PoE injector provides the same function as the VX-Pi100 but can support gigabit speeds. For larger-scale deployments, multi-port PoE injector hubs (also known as PoE hubs) perform the function of multiple PoE injectors.

The IT network is the lifeblood of any business, and PoE technology saves companies a bundle while adding a single-cable solution for powering smart devices cross-platform. PoE adapts easily and scales to fit your implementation now while also adjusting to fit new configurations as your needs morph down the road. Deploying an additional IP phone, camera, or wireless access point does not have to break the bank. Depending on the power requirements of the PDs you are supporting, you may opt for a solution other than a new switch. That is because constructing or adding to an existing switch, even a loaded one, is more straightforward and less expensive than you might think. Getting the connectivity you need may be as simple as adding a PoE injector.

When needing many 90W ports, look for an ultra PoE 802.3bt-ready switch like the VX-GPU2626 L2s + 24-port managed GbE UPOE Switch (2200W) to support higher-powered PDs.

A PoE hub can be viewed as a stack of PoE injectors. For example, a four-port PoE hub will have four data-in interfaces and four PoE interfaces. Each PoE interface requires a data connection with the corresponding data inside. A four-port PoE hub will require four data ports from the network switch. Data ports on the PoE hub will not forward frames within the hub. In other words, frames received on part one cannot be sent to parts two through four.

A PoE splitter supplies power to non-PoE-compatible devices by splitting power from data and feeding it to a separate input. Splitters are used on legacy and low-power devices like IP cameras to split PoE power from data signal and convert to lower-voltage requirements for the camera. In addition, a splitter allows a non-compliant device to upgrade to PoE.

A PoE extender is used to lengthen a network beyond the basic 100-meter distance limit for a twisted-pair Ethernet cable. Extenders unite networks that span large distances in hotels, shopping malls, business and academic campuses, and sporting venues.

Industrial PoE equipment comes with stringent standards to ensure operation in extreme industrial conditions. PoE industrial equipment must have the capacity to protect against electrical decoupling, especially in electrically demanding environments, such as electrical substations. PoE industrial equipment, often described as “hardened,” supports extreme operating temperatures and additional optional protection measures, including dustproof and waterproof features.

The H70-044-60 managed industrial PoE switch has two RJ 45 and two SFP interfaces, a power budget of 240W, and can be operated in temperatures between -40°C and 75°C.

Industrial PoE applications help developers stay competitive. For example, sensors and IP cameras allow managers to observe manufacturing floors to monitor automated equipment and employee behaviors. This watchdog capability is essential to obtaining lean manufacturing development. PoE also facilitates large data transfer and power distribution to key areas. Following is a list of several Industrial PoE applications:

One PoE application that is quickly gaining popularity is POE lighting. PoE lighting is a low-power, high-performance LED lighting network technology comprised of fixtures and sensors and is managed remotely using intelligent software. The control module communicates data signal and power over a twisted-pair cable. Network administrators use PoE to provide power to energy-efficient LED bulbs, using standard network cabling like Cat5e or Cat6 wiring. LED lights have an average lifespan of about 50,000 hours and use only six to eight watts of power per bulb. Therefore, with a PSE with a sufficient PoE budget, network administrators can deploy PoE lighting with a low amount of investment. In addition, standard networking cables are also a cost-effective alternative to the traditional electrical conduit used for wiring. PoE lighting gives users access to smart lighting using a simple internet connection. Furthermore, it provides users the ability to remotely control their lighting systems via a mobile client device or a web browser. LED light installations will not require a professional electrical installer. IT personnel are positioned as the new electricians of the future. PoE lighting allows office users to customize their work environments with flexible lighting endlessly.

PoE lighting systems consist of PoE switches, lighting controls, sensors, and LEDs connected to LANs over twisted-pair cables. Lighting controls allow end-users to mirror the features of daylight to promote health, productivity, and collaboration using a broad spectrum of optical frequencies. With a PoE lighting system, data can be collected from motion sensors, allowing organizations to monitor better and control energy consumption. Individuals and organizations are leveraging these benefits in homes, work environments, academic settings, hospitality venues, and medical treatment facilities.

PoE is on its way to becoming THE source of electrical power in the workplace. PoE’s versatility is instrumental in co-working spaces that are commonly found in the startup sphere. These co-working spaces are often occupied by freelancers and independent contractors where office arrangements are never permanent. As PoE adopts more applications beyond computer networking, it can potentially act as a shifting power source that new users can easily modify without the help of professional installers.

PoE allows for flexible network designs that are simple to deploy. In addition, the practicality of PoE wiring leaves future application possibilities for PoE open for exploration. In the wake of the Internet of Things (IoT) revolution, PoE is positioned to gain traction. As an increasing amount of objects and sensors connect to the internet, PoE has the potential of becoming as integral to infrastructure as electrical circuitry. This prospect seems more viable, especially with ratifying the 802.3bt standard that has given us high-power PoE.

PoE allows you to add a device in awkward or remote locations. It is excellent for WAPs, CCTV camera placements, and digital signage on the tops or sides of skyscrapers. It is suitable for IT network installations as well. Cables for IP devices and small, out-of-the-way networks can be boosted for distances beyond 100m for a single device through the use of PoE injectors. PoE can be used over existing copper telecom infrastructure.

PoE costs less than fiber and is delivering higher and higher data speeds. Thanks to the widespread adoption of IEEE 802.3bz technology, manufacturers are spending more on product development. Data delivery rates are now at 1 Gbps (10/100/1000 Mbps) over Cat5e and Cat6. The new IEEE 802.bz standard can deliver speeds of 2.5 to 5 Gbps over 100m leverage with an immediate view toward 10 Gbps. High-definition streaming only requires 400 Mbps. A network could easily stream a training video while others work and check email. PoE has more than enough data speed to support devices in a small LAN.

PoE does not require an additional power supply. The previously developed standard—IEEE 802.3at—provides 30W of power. The most recently developed standard—IEEE 802.3bt—provide 60W (Type 3) and 100W (Type 4)

PoE can support a huge range of devices, and that list is expanding. In fact, manufacturers are developing network devices with the convenience of PoE in mind. PoE technology works indoors and outdoors. In places where there are extreme temperatures, installers keep cables and devices in protected areas like under the eaves or in the shade. Even the latest standard, IEEE 802.3bt supports legacy devices. These are devices not manufactured to PoE standards. These devices may be added to a PoE network inexpensively through the use of a PoE splitter. Poe 802.3at devices include things like video phones, speed dome cameras, and WiMax wireless access points. PoE 802.3bt devices include things like thin clients, point-of-sale systems, laptops, and digital signage.

PoE costs less to install than fiber cabling. Cat5e/Cat6 Ethernet cable, which appears in many existing infrastructures, as well as, the more recent Cat6a cable are considerably less expensive than fiber over the scope of an installation. Since both the PoE networking equipment and compatible devices are also becoming plug-and-play, PoE is making network upgrades feasible from both a budgetary and IT resource perspective. And because power delivery is through the cable, there is no need to hire a contractor to install an electrical outlet for a remote device. And finally, from a technological standpoint, PoE is as “green” as you get.