Management PoE Switch VS. Unmanned PoE switch

In our daily life (at home or in the office), PoE switches play an important role in connecting our data and information. In addition, PoE switches can not only transmit data signals, but also transmit power to external devices. Both power and signal can be sent at the same time. There are two types of PoE switches: managed and unmanaged. Managed and unmanaged switches are widely used in businesses, modern cities, and traffic management. How does it work? What’s the difference between them?

Unmanaged switches

Where a managed switch needs management that works exactly the way you want it in return for your network, an unmanaged switch works without any input from you. There are no configuration interfaces or options for repair and support. These network devices work in their simplest form. You do not need to enter an additional code. The unmanaged switch gives consumers the peace of mind that they have everything connected and started automatically. For private companies and small businesses, this would be a preferred choice.

Managed switches

If you have a company or an international hotel, you have to work with 1000+ colleagues. How do I connect all computers that work together? A managed switch is a device that can be configured and properly managed to provide a more personalized experience for those using the box. Monitoring the network is not the only function of managed switches. Control over data is another skill that makes managed switches more intellectual. This point can be shown by its characteristics. Managed switches generally provide Simple Network Management Protocol (SNMP) that allows users to monitor the status of the switch and individual switch ports and provide statistics such as traffic throughput, network errors, and port status. In summary, managed switches are designed for heavy workloads, high traffic, and deployments requiring custom configurations.

What are the differences between Managed and Unmanaged Switches?

Network switches are like the “brain” of a home network or a business network. Selecting suitable and highly efficient switches is an important task for network administrators. But how do we know which type of switch is right for us? This is a problem that has long puzzled people. We analyze the image of different switches. There are five main factors to focus on.

1. Performance

2. Features

3. Costs

4. Security

5. Places of application


A major difference between managed and unmanaged switches is performance. Control switch is configurable Control of access and LAN traffic – Priority SNMP. It allows remote troubleshooting of the network. Managed switches also require one or more administrators who understand the concepts of network configuration and monitoring and how these concepts apply to a switch configuration. Unmanaged switches tend to have a plug and play installation process. Unmanaged switches plug and play with limited configuration such as the default QoS settings.


Managed switch features may vary by manufacturer and model, but often include:

• STP (Spanning Tree Protocol) support for switch and link redundancy without creating loops. There are several STP iterations that are commonly configured, including traditional STP, STP per VLAN, fast STP, and multiple STP.

• the ability to implement quality of service;

• VLAN support;

• Bandwidth speed limitation; and

• Gate mirroring.

A unique feature of unmanaged switches is the MAC address table mentioned above. Maintaining a MAC address table will reduce the total number of broadcasts broadcast and limit the number of possible collisions within the domain. This is also an important distinction between an unmanaged switch and an Ethernet hub.

cost In terms of cost, unmanaged switches are significantly cheaper compared to their managed counterparts. However, few unmanaged switch options are considered enterprise options. Instead, organizations interested in unmanaged switches can purchase them directly from the manufacturer online or through big box stores.


We can say that the managed switch is doing very well from a security point of view. Security features can be configured for managed switches that unmanaged switches cannot use. Managed switches provide protection for the data plane, control plane, and management plane. An unmanaged switch is not very good. No security other than accessories such as lockable terminal covers.

Application locations

The managed switch could make an incredible contribution to the data center of large corporate networks. Unmanaged switches are better suited for small business networks, homes, labs, conference rooms, etc.

How to choose between a managed and an unmanaged network switch

In many cases, consumers must select the most appropriate network switches to ensure that the entire network system is working properly. Then managed switches versus unmanaged switches: how do you choose the right switch for your practical network needs? What kinds of switches are there for business networks?

There is a little example that can tell the truth. An adult needs two eggs a day to replenish enough protein. Should a child also eat two eggs a day? The extra value can be wasted because it cannot be absorbed. As mentioned earlier, managed switches are more expensive than unmanaged switches because they require software patches, updates, and often an experienced person to be deployed. However, complex networks consisting of servers, wireless access points, PCs and IoT devices often require the configuration options for managed switches.

Small businesses with dozens of connected devices can probably get away with implementing an unmanaged switch. The functions of managed switches are unlikely to be used because a single flat network can easily handle the traffic generated by a small network. Therefore, the additional cost of a managed switch is unlikely to add any value to the business.

An organization may need a managed switch as the business is approaching hundreds of devices. In this case, the ability to use VLANs to divide the LAN into multiple broadcast domains can ensure optimal network performance. In addition, larger organizations likely have an IT network professional who can configure advanced performance, security, and monitoring features.

What is a PoE Injector?

Installing and maintaining hard-to-reach devices such as surveillance cameras or access points can be challenging, especially when they need to be maintained with both power and data cables. Power over Ethernet (PoE) technology that simultaneously supplies power and data through twisted pair Ethernet cables. The most popular device type in our PoE accessory line is the PoE injector. However, there are many questions that can be asked about this topic. This article explains the basics of the PoE injector.

Power over Ethernet (PoE) is a technology that, in addition to the data normally carried by the cable, routes power through a twisted pair Ethernet cable to active devices (PD), such as wireless access points, IP cameras, and VoIP phones. PSE devices send power and data to a connected PD via the Ethernet cable. PSE devices are classified as “Midspan” or “Endspan”. A common type of PoE midspan is a PoE injector.

What is a PoE injector and what can it do?

A PoE injector, also referred to as a PoE adapter, can be implemented to make a non-PoE compatible switch work with PoE devices by powering compatible devices through a single Ethernet cable. Typical use of a PoE injector requires 3 devices. The PoE injector itself, a connection to the network, usually a router or switch, and the device that requires the PoE injector.

If a non-PoE compatible network switch (which you do not want to upgrade) is used with a PoE device, a power source is required to power the connection. A PoE injector is a device that supplies power to an Ethernet cable for PoE devices. In particular, a PoE injector can be used to connect a wireless access point, IP phone, network camera, or any IEEE 802.3af / at-powered (PD) device to a network switch.

The PoE injector is a PoE compatible device. This is why it uses PoE technology, which means that delivering data and power over a standard Ethernet cable eliminates the need for AC / DC power supplies and outlets to power PD devices that need to be installed in a location where an outlet is not available. PoE installation is fast and inexpensive, especially when compared to older, outdated methods that require two separate cables, one for power and one for data. Plus, PoE installation doesn’t usually require a professional or bankrupt.

In addition, PoE injectors will not damage devices, even if the devices are not designed for PoE applications. Before the PSE sends power to a connected PD, the PSE initiates a handshake process that determines how much power the connected device requires.

Passive PoE Injector and Active PoE Injector

A PoE injector follows the PoE standard IEEE802.3af, IEEE802.3at or IEEE802.3bt, which is believed to use active PoE. The injector will only deliver power if it considers it sufficient and complies with the standards / requirements of the connected device. Otherwise, the device will not turn on.

While a passive PoE injector is usually a PoE injector that uses PoE technology that is not compliant with 802.3af, 802.3at or 802.3bt standard. There is no handshake with the device to determine the power requirement. Hence, it can sometimes be dangerous to use it when connected to an incompatible device.

How much power can the PoE injector provide?

There are three standards for PoE injectors: IEEE802.3 af standard (PoE), IEEE802.3 at standard (PoE +) and IEEE802.3 bt standard (PoE ++). The main difference between these types is the amount of power sent through the line. IEEE compliant PoE injectors can deliver an output from 12 watts to over 70 watts. The PoE can deliver 15.4 watts through Cat5 cable, while PoE + can deliver 30 watts through Cat5 cable.

How does the PoE injector work?

A PoE injector almost always has two RJ45 Ethernet ports, one of which is labeled Information In and the other is labeled PoE / Data Out. The injector plugs into a power outlet and data source and does the rest by electrifying the Ethernet cable and powering connected devices.

Before you buy a PoE injector, make sure it is right for you. While they are practical, they are not always the best solution. You may need to consider the number of devices, PoE standard, and voltage.

Where can I buy the PoE injector? Fastcabling offers different types of PoE injectors to meet your needs. Here are some recommendations:

30W PoE Injector, corresponds to IEEE802.3at, which comes with maximum 30W. Output power for connecting IP devices. Integration into an existing network system is secure and the compact size allows for flexible installation.

The 95W PoE Injector is an advanced PoE injector that supports 90W inputs and is suitable for power-hungry IP devices. The whole system works with a 95 W PoE splitter and offers a maximum power of 72 W for PoE and non-PoE devices. In addition, the displays provide an intuitive and easy way to monitor the operational status of the connected devices.

The 60W Outdoor PoE Injector is a standard 802.3bt device and delivers up to 60W for the Edge devices. That’s twice the power of the 802.3at, which is up to 30 W. Thanks to the sturdy metal housing and waterproof IP67 design, it can also be used outdoors.

What is PoE Extender?

IP devices such as IP surveillance cameras that are controlled via a PoE (Power over Ethernet) network are limited by a distance of 100 meters between the ports. Sometimes you need to use a cable longer than 300 feet. In this case, the connection distance can be increased using what is aptly known as a PoE extender or PoE repeater. What is PoE Extender? This article is designed to walk you through the basics

Power over Ethernet (PoE) is a technology that, in addition to the data normally carried by the cable, routes power through a twisted pair Ethernet cable to active devices (PD), such as wireless access points, IP cameras, and VoIP phones. The limitations of PoE are that simple PoE only transmits signals from 100 m. That is why it is a challenge to connect a private LAN between buildings or more distant locations. Power Over Ethernet products (PoE Ethernet Extender or PoE Extender) provide an easy to connect, transparent power and Ethernet network bridge between existing AC outlets with Ethernet LAN data through your cabling to external PoE devices.

What is PoE Extender?

PoE extenders are the easiest and most effective way to extend CAT5 / 6 PoE transmission beyond the 100m limit of conventional PoE switches and injectors using standard twisted pair cables. The PoE extender is a connection device on the physical layer of the network. It is suitable for hotels, campuses, factory dormitories and small and medium businesses to create a low-cost network.

A Power-over-Ethernet extender (PoE extender) takes PoE technology to the next level by breaking two important limits as it can extend the distance limit of 100 meters and use existing copper twisted pair cables to run through the same stream network connection as an ethernet data stream.

Why use PoE extenders?

With the PoE extender you can easily improve the range and placement of your wireless and surveillance networks and thus the strength of your networks.

PoE extenders are not difficult to use. In general, it is just plug and go technology. The extenders usually work so seamlessly that the user may never know they are there.

The PoE extender reduces overall costs by eliminating the need for additional outlets and associated AC cabling to power the monitoring equipment. In other words, PDs can be deployed in the most convenient location for their use, not the location closest to an electrical outlet. This saves you time, money and concerns about adaptability, scalability and flexibility.

There are network or Ethernet switches that are not PoE compatible. If a PD is plugged into an electrical outlet and the power goes out, the device will lose power. In the absence of a UPS, all PDs lose power. However, this problem can be ignored by using the centralized PoE power supply. However, all devices are supported using a centralized power architecture and backed up.

PoE extenders use PoE power, which means that they use relatively low voltages, which means there is little chance of an electrical hazard.

How do you use PoE extenders?

A PoE extender receives power and data from the PSE it is connected to. It uses some of this energy for operation and forwards the remaining energy to the next PoE device. A POE extender helps installers overcome transmission limitations for Ethernet cables. A POE extender is also a POE injector. In theory, you would need one or two pairs of extenders per 100M. Your extender has a PoE in port and a PoE out port. It can simultaneously transmit data to back-end network cameras, wireless APs, VoIP phones, video door entry systems and other PoE endpoints.

Take the system configuration of the IP camera NVR as an example. When you connect your PoE extender to your IP surveillance camera, you only need to connect it inline. The PoE extender can run directly from the PoE port of an NVR or PoE switch to a camera and can easily reach 90 meters in length. Simply connect the PoE Extender Max in series to the Cat5 or Cat6 network cable for any additional length of 100 meters. No configuration or power is required. Because the work of the PoE extender is obtained through the PoE switch and no additional power supply.

If your IP camera is more than 100 m but less than 200 m away, you probably only need an extender. If you have to be 300 to 400 m tall, you probably need at least two or three extensions. If you connect an external camera from about 1 km away, the extenders will not help you. You need a fiber optic PoE solution.

Build POE IP Security Cameras System with POE Switch

Many people may require a POE IP camera system in their houses for property protection and safety, deploying IP cameras may be the best choice. Cameras linked with POE switches are convenient for users to install and eliminate unnecessary cables. With the development of IP camera systems, more intelligent IP cameras will be used in home IP security systems.

Undoubtedly, security is imperative for any business in modern society. IP camera security system offers an optimal solution to protect most businesses. Both a middle-sized company and a large-scale company need more than one IP camera for their IP camera security system. In this condition, the port number of POE switches is a good solution. a 24-port POE switch may be suitable for middle-sized networks, 48-port POE managed switches can meet requirements of large businesses like international hotels or enterprises.

How to Install A POE Camera?

If you are using a POE switch, regardless if it is a managed POE switch or an unmanaged POE switch, the easiest way to set up the POE camera is to simply connect it to the POE switch which will then provide the camera with data and power.

Why Use PoE Switch for IP Camera Systems?

When it comes to adopting PoE technology, some users may think it’s unnecessary to buy a PoE switch with a relatively high price. Compared with traditional solutions, adopting POE switches in IP camera systems have countless advantages.

  • Longer Runs

Connected with a POE switch, IP cameras can be installed anywhere, even to reach remote locations. With a single Cat5e cable, the distance of running POE IP camera can be up to 100m. If longer runs are required, POE repeaters may be needed.

  • More Connected Devices

A POE injector can also power IP cameras and save more space. However, what if there are many devices, say ten IP cameras, needing to be connected together? Under this condition, a POE switch that has more ports will provide the optimal choice.

  • Higher Power Output

POE switches can power devices in camera surveillance systems. Furthermore, the advanced POE+ switch that delivers more power can transmit up to 30W over Cat5 cables, compared with the average 15.4W offered by standard POE switches. As a result, the POE series switches can meet the demands for some power-hungry IP camera systems.

  • Easier to Manage With Troubleshooting Availability

Advanced POE switches allow each camera to be controlled remotely from any point in the IP camera systems. A managed POE switch can use a GUI interface to provide a topology view of the network and the devices connected to it, which functions in troubleshooting when a system goes down. Specifically speaking, each port on the POE switch can be programmed to send an automatic alert to the authorized users when a camera breaks down. After logging in, the user will identify which camera is broken and reboot it with the aid of the topology view. If the reboot doesn’t work, the user can send a technician to repair it immediately. POE switches can help to speed up the troubleshooting and repair process and minimize the overall downtime.

  • Lower Expense & Less Time

Since administrators can monitor and manage the switches remotely, in most of the cases, they can reboot any non-responding POE IP camera without going to the camera’s location, which saves both cost and effort.

How to use POE switch to build IP camera system

Step 1: Get a POE Switch

Step 2: Connect your IP Cameras to the POE Switch

Step 3: Plug Your POE Switch into the Router

Step 4: Power on the POE Switch

Step 5: Add the Cameras to Your NVR

How to Select, Choose or Buy a POE Switch for IP cameras?

To choose a suitable, reliable and best POE switch for your IP security cameras, there are few factors you need to consider: POE standard, POE IP cameras’ power consumption, POE switch maximal power supply, POE switch port number, cable length and etc.

  • Factor 1. POE IP Camera Power Consumption

A POE switch not only carries network connection but also supply power to Power over Ethernet (POE) IP cameras. However, IP cameras power consumption varies; some could draw up to 20 Watt such as PTZ IP cameras RLC-423 while others could consume as little as 3 or 4 Watt.

Therefore, a POE switch should be able to provide enough power for different types of IP camera via Cat 5 or Cat 6 cables.

There are mainly two types of power over Ethernet (POE) standards, theoretically, the POE standard (IEEE802.3af) could provide up to 15.4W of DC power on each port. In practice, only 12.95 W will be supplied to the IP cameras or other POE devices given the power loss that dissipates in the network cables.

Similarly, the POE+ standard (IEEE802.3at) can pump out up to 30 W per port while only 25.5W could transmit to Network-enabled devices in real time.

Choose a POE Switch that suits your surveillance needs and makes sure to double check your POE IP camera power consumption ether in the user manual or technical specification spreadsheet.

  • Factor 2. POE Switch Maximal Power Supply

Meanwhile, the maximal power supplies of your POE switch matters as well. If the maximal power supply of the all your cameras exceeds your POE switch power cap, then the POE switch won’t provide enough power for all your POE IP cameras, pan-tilt-zoom (PTZ) IP cameras in particular.

Insufficient power supply to the IP cameras are the common culprits for video loss and IP camera poor performance.

That being said, when buying a POE switch for IP cameras, it’s important to go for a POE switch with more power juice or reducing the number of PTZ IP cameras plugged into the POE switch as PTZ cameras draw more power than other IP cameras.

  • Factor 3. POE Switch Power Supply Voltage

Many security cameras run either 12V or 24V power, if not supplied with the proper power voltage, the IP camera either won’t work or even be overloaded.

For example, 12V IP security camera is powered by a 24V power source or vice versa, the IP cameras would likely to be burnt out or fried. To provide the proper amount of power for the POE IP cameras, one of an important feature to look for in a POE switch for IP cameras is its abilities to automatically adjust voltage accordingly.

For example, a POE switch with 802.3af compatibility is able to accommodate the power input of your IP security cameras, for example, GS308P POE Switch comes with IEEE 802.3af compliant.

  • Factor4. POE Switch Port Number

If you are looking for POE switch for more than 4 cameras, it’s important to check the port number, such as a POE switch with 8 ports, POE switch with 16 ports, POE switch with 24 ports, or POE switch with 48 ports.

While the port number largely depends on your actual need as well as the overall power consumption of your IP cameras.

For example, a 24-port POE switch with 370W power supply could power 24 IP cameras with IEEE802.3af standard (15.4W per port) while it could only power 12 IP cameras with IEEE802.3at standard (30W per port).

  • Factor 5. Gigabit POE Switch or Not

As mentioned before, a POE switch not only supply power to the IP cameras but also carries network connection.

A gigabit switch is getting an upper hand in comparison with a 10/100 Mbps switch because you do not want the switch to become the data bottleneck when you are powering 4 POE IP cameras in addition to other devices on the switch. (Learn whether IP security cameras slow down your home network)

  • Factor 6. Unmanaged or Managed POE Switch

The main differences between an unmanaged and managed POE switch lie in functionality, configurability, and of course, the price tag.

Unmanaged POE switch (cheaper) is a plug-and-play with no setup required while managed POE switch allows you to configure networking protocols, as features such as VLANs, IGMP Snooping or more.

For most homeowners, an unmanaged POE switch fits the budget and works to meet the needs for powering POE IP cameras.