Long Distance Network and Power Extension with PoE System

As we know, set up IP camera system to improve security safety, a good network is the premise. Many applications require the installation of IP Cameras that are beyond 100 meters away from the closest monitoring center (e.g. networked Ethernet switch). In this case, network signal and supplying power would become too weak for remote IP devices working well 24/7,because Ethernet cable has a transmission limitation of 100 meters. The solution to deal with this issue is to extend network and power. Power over Ethernet (PoE) is the most common solution.

The starting point of Power over Ethernet technology is that small network devices such as VoIP phones, wireless access points, and IP cameras which can obtain power and data directly from the Ethernet cable, and there is no need to separately lay power lines, simplifing system wiring and reducing the construction cost of network infrastructure.

There are some advantages to choose PoE solution for network and power extension. PoE technology simplifies cabling and saves labor costs. Ethernet cable simultaneously transmits data and power. PoE eliminates the need for expensive power and its installation time, saving money and time. Users can safely and conveniently integrate the existing PoE of non-PoE devices on the network, which can coexist with existing Ethernet cables. The PoE power system is running under DC48V which is perfectly safe for human being.

Depending on your environment and application, there are two methods to extend your Ethernet network beyond the nearest monitor center.

1.Extension over copper cabling with PoE extender

When you’re connecting your IP cameras to workstations in a building, PoE extender is handy devices.

PoE extender is a kind of device which is used to extend the distance of cable in order to repeat data and power to powered devices. In this way, the distance of powering the IP camera is in a maximum of 500 meters by utilizing daisy chain set-up, that is you can use up to 4 units of extender to deal with long distance power supply issue. It is flexible to meet the demands of different distance.

Before using extenders, you should know your IP devices with how much power consumption. As the extenders comply with different standards, their output power will be different. Figuring out this point is important to choose a suitable PoE extender. What’s more, number of required interfaces, and rate (10/100/1000M) also should be considered.



Here we take two most common types of PoE extender as example.

  • IEEE802.3af PoE extender

IEEE802.3af does not exceed 15.4W at maximum. Due to the loss of transmission wires, it can supply power to devices with a maximum power consumption of less than 12.95W. It is sufficient for general IP cameras, but for high-power front-end equipment such as PTZ camera, the output power is not up to standard.

A PoE extender that complies with the IEEE802.3at standard can supply power to devices with a maximum power consumption of less than 25.5W. The PoE extender is ideal for applications include parking systems, video surveillance, tank monitoring and connecting power sub meters.

If you want to install more than one IP camera, you can add a PoE powered switch in the system to expand network conveniently. However, when multiple ports of the POE passthrough switch are powered at the same time, it is necessary to calculate whether the power enough to supports the front-end IP devices. If not, the backup power supply needs to be added to increase the power supply of the switch. Therefore, choosing the passthroug switch, you should make clear how many devices can be powered up. Total power budge is an important indicator of a PoE switch.

The network monitoring project is different from ordinary network integrated wiring. It is a large volume of data transmission with high power, which requires 24/7 uninterrupted work. The use of qualified PoE devices and cables is the guarantee of the stability of the whole system.

2. Extension over fiber optic cable with media converters

When connecting to a distant department, a building across campus or across town where too far for common PoE extender to satisfy. Fiber optich cable is an effective long distance network extension solution. Besides, fiber optic is a rather secure option. It is generally used with a pair of media converter. As we know, fiber optical cable does not deliver power, and media converter can transport fiber optic to eletronic signal, and vice versa. Usually, there are two terminal ports with a converter——RJ45 and SFP fiber port. Like convenient Ethernet ports, RJ45 is linked to security IP camera or main network. The fiber cable distance between the camera and the main network can be up to 80km.


There are also other new products that integrate media converter in their interface. Fiber PoE extender is one can also link fiber cable. And the fiber PoE extender can be installed in the front-end with a PSU that can be placed far away from the IP cameras. Therefore, it’s no need to worry about the power issue. The maximum distance between the power supply and the camera is up to 2.5km.

Besides, outdoor environment could be harsh, especially in hot summer day. So all the media converters, SFP modules and the extenders need to bear the wide temperature range. The industrial hardened grade products will be used for this outdoor application.

If there are several security IP cameras gather around in the area that you need to moniter, fiber PoE switch is a convenient good choice. The fiber PoE switch has mulitple PoE ports which can take in more than one security IP cameras, supplying both data and power over Ethernet cable. Instead of wiring each fiber optical cable to each security IP cameras, one fiber link is enough between the media converter and the fiber PoE switch. The connectivity between the fiber PoE switch and the camera stays with convenient Ethernet cable. In addition, this fiber PoE switch is well suit for industail environment, because it features industail grade design.

The information above shows the ways for IP camera long distance network and power extension. Hope can help you to deal with the issue in a suitable way.


Extend network between two building – both copper and fiber optical

Long distance network transmission always confuses us. As we know, network signal transmission is limited by copper material. If using cropper cable to transmit network over 100 meters, the signal would become too weak to support devices working.

With convenient network, we are able to set up IP camera system to improve security safety. In the case of building A to building B, backyard to garage, warehouse to home, firstly it should have network connectivity there. In some situation, we may have to consider the power as well. Electronic equipments such as IP cameras, access point VoIP, not only need data but also power. In order to guarantee the devices working well 24/7, reliable and convenient network with power system are very essential.

The article would show 3 ways to extend network from one place to another. If you want to extend network between 100-500 meters, the first solution is right choice to go. If longer distance is required, like home to farms, the last 2 ways has provided some useful ideas.

  • Long distance up to 500 meters.

In this way, we can use PoE products to extend network up to 500 meters. It allows us to extend network distance like home to backyard warehouse.

 Equipment needed:

1. PoE switch

2. PoE extenders

3. Cat5e cables

You may confuse what is PoE and how it helps to extend network? PoE, power over Ethernet, is a technology that transports data and power over single Ethernet cable. That’s mean we do not need to prepare extra power adaptor which will reduce cables and simplify installation.

How it works? PoE switch transports data and power to front-end IP devices. It always has power source equipment such as PoE switch or PoE injector at back-end. These PoE switch or injector will send the power and data to the extender, the PoE extender catch it and boost up for next 100 meters. 4 units PoE extenders link together with daisy chain setup can provide totally 500 meters PoE network.

Firstly, we need one PoE switch port to connect to PoE extender. Now the PoE extender gets data and power which will transport both of them to IP device or next PoE extender with Cat5e/cat6 cables.

If we need to expand RJ45 ports at the front end, we can use pass through PoE switch. Similar as PoE extender, pass through PoE switch is powered by a PoE injector at back-end, and create multiple PoE ports for remote ip devices. As the latest IEEE802.3bt standard is employed, the pass through PoE switchsupply total power budget up to 71W.

  • Long distance up to 80KM (Power from front-end)

Equipment needed:

1. PoE switch

2. Fiber cable

3. Media converter

4 .Ethernet cables

If the power source is available at the front end, what we need is the media converter to set up the fiber link network. The advantage of fiber optical cable is fast speed, low latency and long distance. It is basically the light transmission in the fiber cable. The fiber optical signal will be converted back to electronic signal and go through Ethernet cable after media converter.

Firstly, install SFP modules on PoE switch and media converter. If PoE switch has SFP slot, it saves one media converter. Otherwise, two media converters are needed at two building. The network system needs a converter to transfer optic signal into electronic signal.

Now use fiber line to link SFP and another media converter.

Finally we can connect the two building with fiber optical cable.

In addition, if we want to use media converter to back up multiple IP devices, we can connect the media converter to network switch. The switch would get data from converter and support data to multiple IP devices.

  • Long distance up to 2.5km(Power from back-end)

This connection way is to solve the issue while the power source is difficult to acquire at front end. As we know, fiber optical cable does not deliver power and electronic devices need power to supply it work. In this way, building A would like to offer power as well as data.

Equipment needed:

1. Media converter

2. Fiber PoE extender.

3. Siamese fiber cable

Similar as above solution, it needs to set put fiber optical link between two buildings. The fiber optical can’t transport the power, however we can add one pair copper or Siamese fiber optical cable which has integrated copper cable to send the power in parallel. The voltage drop is the first issue for long distance power transmission. DC55-DC57V is properly voltage as it is safety to human being. After fiber PoE extender receives the power, it will boost up the voltage and regulate to DC48V output for front end PoE devices. Both non-PoE and PoE equipment can’t be connected to the fiber PoE extender at the other end. Constructed to voltage drop, the maximum meaningful PoE distance is 2500-3000 meters, the voltage will become too low to supply the PoE ip device, most of the power will be loss on the cable. The fiber PoE extender is convenient tool for long distance PoE network, where the network go, the power follow.

General speaking, if extends network from 2 building within 500 meter, user can choose PoE extender to repeater network. It is good choice for user to pick fiber solutions while extends network far from 2.5km. Click here and show Practical tips to improve your WiFi signal

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How to Power Long Distance Security IP Cameras

IP camera(Internet Protocol camera)is differ from analog CCTV camera. It is a type of digital video camera that receives data and send video stream via the Internet. The IP cameras are generally applied in the areas where security is needed, mainly used for surveillance purpose. There are various types of IP cameras including WiFi IP camera, wired IP camera, and webcams.

Today, we will talk about how to power long distance wired IP cameras. If the distance between the monitoring center (e.g. switch) and the deployment location is beyond 100 meter, supplying power could be an issue in such long distance. The power will sharp down as the distance increases to a certain extent, which results in the insufficient power voltage to supply the front end IP cameras.

There are several practical ways to deal with long distance power for security IP camera. If the AC power is presented closed to cameras, the power adaptor can provide the power to the camera. In this case, only the data transmission needs to be concerned. While the power is difficult to acquire, you will need to send the power from monitoring center or somewhere far from the cameras. Several ways can be employed to get the job done. The most common solution is the Power over Ethernet (PoE)

Firstly let’s understand what is PoE. PoE(Power over Ethernet) is a new technology that transmit data and power simultaneously along with a twisted ethernet cable for up to 100 meters. The power source equipment such as PoE switch or PoE injector will add the power to Ethernet cable and send to the remote IP camera. We have mentioned above, IP camera differ from analog CCTV camera, One of the advantages of IP camera is that it can be powered through the ethernet cable and operate without a dedicated power adapter. The PoE was developed according to TCP/IP network, the maximum distance is still 100 meters. In order to transmit the power and data beyond 100 meters, extra devices will be needed.

Majority of IP cameras require a central network video recorder (NVR) to handle the recording, video and alarm management. IP cameras encode and process the video data, then stream it to the NVR recorder which is used for storage and remote viewing. PoE NVR can be considered as a video recorder integrated with PoE switch, it can transmit data and power through one ethernet cable for 100 meters, plus the distance between PoE NVR and back-end switch, the total distance increase to 200 meters. What to do is to move the PoE NVR closed to the camera in order to obtain the extra distance. The downside of this solution is monitoring may need to move along with the NVR.

  • PoE extender

If moving the NVR is not possible, PoE extender is a handy tool. PoE extender is a kind of device which is used to extend the distance of cable in order to repeat data and power to powered devices. In this way, the distance of powering the IP camera is in a maximum of 500 meters by utilizing daisy chain set-up, that is you can use up to 4 units of extender to deal with long distance power supply issue. It is flexible to meet the demand of different distance. If the IP camera deploys at outdoor, some protective tools are better to be prepared. The cable needs tube to protect in the harsh environments and although there are waterproof extender, using a closure is a good protection for future maintaining, especially when it is buried under the ground in case of moisture. Cat5e and Cat6 cable are two types of Ethernet cable for common use. You are supposed to choose one with pure copper cable to avoid voltage drop problem.

  • Fiber PoE extender

If the distance is longer than 500 meters, or fast speed and low latency are required for your security IP cameras. The fiber optical is the right way to choose. Fiber optic cabling is an effective method to overcome the distance and bandwidth limitations of ethernet cable. What you need is one fiber PoE extender and two media converters deployed at two sides separately. These two devices allow you to set up the fiber link network. As the fiber optical simply employs the light to transport data, there is no way to add the power to fiber optical cable. The practical solution is that add a pair of copper conductors or use siamese fiber cable which has integrated copper cable to transmit the power in parallel. Now the power supply units can move to the back-end or far away from your camera. While choosing the right copper cable, the maximum power distance can reach 2.5km. As we mentioned, the voltage is always the number one issue for long distance power transmission. The power will convert to heat and lose inline. The well-designed fiber PoE extender can boost up the voltage to meet standard PoE requirement

While there are multiple IP cameras closed to an area, using fiber PoE extender may involve in higher cost, as each camera needs independent fiber link and fiber PoE extender. The hardened fiber PoE switch is capable of providing multiple PoE ports for the IP cameras. As the power consumption is larger for mulitple IP camera, the power supply units has to be closer to the hardened fiber PoE switch, because of voltage drop limitations. Unlike the single fiber PoE extender which can move PSU 2.5km behind, the PSU only can stay 800-500 meters far. As the Hardened fiber PoE switch supply standard IEEE802.3af/at PoE, there are still 100 meters extra copper distance between the switch to the cameras which means all the cameras around 100 meters can be gathered together to the hardened fiber PoE switch.

From the above information, you must have a well understanding of long distance power methods for IP camera. If you want to know more detail about IP camera power method, click here please.

4 common Ways to Extend Ethernet – short and long distance

With the development of the Internet, people rely on the network for their works and keep communicating with each other. This requires good network connection in office and home. In this article, we will introduce 4 common ways to extend Ethernet to avoid network blind spot.

  • Power line

The first way is using power line. It is new fashion devices to extend network signal within limited space. Power-line adaptors convert the network signal and add to the AC power line in home or office. The power line solution takes advantage of existed power cable to transmit the data simultaneously as the AC electric power. This solution has one constrains. It only works within the same power meter. If there are different power meters for each floor in the building, the power line solution couldn’t cross pass between two floors.

The power line adaptors usually work in pair, including transmitter and receiver. Plug the receiver into AC outlet closed to main network. Then more than one transmitter can be added in different rooms to pick up the network signal. Some of the power line transmitters support WiFi which can generate WiFi signal in those areas.

  • WiFi booster

The WiFi booster is the most common way to extend WiFi signal. WiFi booster, also name WiFi extender, repeats the WiFi signal from your router. In most of the case, the WiFi signal is being weakly by the walls. The WiFi booster can be installed on the right spots to pick up the signal and forward to destination. Usually, it is the L sharp path to avoid blocking from the multiple walls. The WiFi booster is installed in the turning point of L.

The WiFi signal not only can be weaken by the walls, but also can be jam by each others while there are too many access points picking up from the neighbors’. One of the possible solutions is switching the WiFi channel to avoid the signal crush. Usually the WiFi router supports manual pick the communicating channel.

  • Network Extender for up to 500 meters

According to IEEE802 standard, the network distance is limited to 100meters far. While the network installation spot is beyond 100meters, the network extender may help. The extender can repeat network up to 500meters with daisy chain setup. However, the convenient Network extender requires power source. Image there’re 2 network extenders for 300 meter. The power adapter has to be presented in each of these two extenders which bring new trouble. PoE network extender can deal with this power source issues.

What is PoE network extender? It is integrated with power over Ethernet technology which allows transporting data and power in one cable. So the power adapter can be removed. If users want 300 meters network, just connect 2 PoE extenders. The PoE extender can even power the remote ip devices if it is IEEE802.3 complaint.

The power will be add to the Ethernet cable by using PoE injector or switch closed to the main router. The PoE extender is simple plug and play products. No program required.

  • Optical Fiber – repeat long distance network.

The advantages is fiber optical is high speed, low latency, and long distance. The fiber optical can easily transmit communicating network up to 20 kilometers. Fiber optical refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic fiber strand. It needs straight line to transport the light and only data can be sent through. Because of fiber optical characteristics, there’s almost no loss and the speed is extremely fast.

It is fit for network communicating from building to building, even from city to city. In fact, the long distance network basically employs fiber optical technology today. If users want to setup network distance over 500 meters or above, fiber optical is a good way to go,

Generally speaking, PoE solutions and Fiber optical are suitable for long distance network extension. If network extending requires in short distance or limited space, Power line and WiFi booster can meet demand. Watch the video below see how to extend the network by using the power line adaptor.

Long Distance IP Camera Setup with PoE Network Extender

If you plan to install IP camera over 100 meters far away from the monitoring center and worry about the distance, PoE network extender can help. The network communicating will start getting worse when Ethernet cable is beyond 100 meters. Some unexpected phenomenon like connection drop and high latency will appear. The PoE network extender is designed to resolve these issues. Rather than convenient network extender, the Power over Ethernet technology is integrated to PoE extender which allows power and data are transported through single Ethernet cable. The power will be sent from the center as well as the data pass through each extender. 4 PoE extenders together can extend 500 meters PoE network by using daisy chain setup.

A PoE switch or PoE injector is required in monitoring center to inject the power to the Ethernet cable. So no extra power source is needed for each extender. The AC outlet is eliminated. The setup process is simple – plug and play. One end of PoE extender connects the cable from the PoE switch, and the other end links to extended cable.

Somethings need to be addressed out while using PoE extender to work with IP camera.

Usually the cable can be hanged in the air or buried under the ground. If you choose to hang up the cable, it is better to add plastic tube to protect the cable. The PoE extender is waterproof and requires no extra protection, but the cable may need the protection from harsh environments outdoors. Adding the tube also can ease the electricity discharge. When power and data are being transported in long distance, it becomes more easier to absorb the ESD in the air which can be sent to the devices and damage them eventually. If cable line is buried under the ground, the PoE network extender need to be placed in some protective closure because of moisture in the soil. Placing the extender in a closure is good for future maintaining.

High quality cable should be used when setting up IP camera. Cat 5e/Cat 6 are qualified grade. Make sure pure copper cable is used. Cat 5e/Cat 6 has high speed, but it doesn’t guarantee the material of the cable. The pure copper can decrease the power loss on the cable, otherwise power loss will turn to new issues if low quality cable is used. It will be converted to heat inline and create voltage drop at the other end of the cable.

What will happen while doing the wrong connection? If the IP camera cannot be powered, first thing is to check the PoE extender. The extender has two different ports, out and in. In port should be linked to PoE switch or injector to receive power and data and out port is to power IP camera. The IP camera could not work if the extender’s port is misconnected. The next thing is to make sure the twisted pair has the right sequence. Move the IP camera to the connection before the first extender. This can help you role out the issue even you don’t have network tester. The connector always needs to be paid attention. As more connectors are created, the possible failed points increase as well. The final thing is to be sure the pure copper cable is employed in the system. As we mentioned above, low quality cable can create power loss and voltage drop. If the remained voltage is lower than the camera required, the PoE power system will never turn on.

Want to find more information about extending the network without the limitation of distance? Click best way to extend the network beyond 100m.

Best Way To Extend Your Network Beyond 100M

We all know that the network signal will become worse when copper cable distance is over 100 meter. Because of this, some of the unexpected issues such as connection drop, high latency may arise once the cable distance reach the limitation. There is one kind of product named network extender or Ethernet repeater which can fix this issue. By using network extender or Ethernet repeater you will be able to extend the network connection beyond 100M.

However, the network extender requires power like any other electronic devices. The power outlet has to be placed in every 100 meters in order to supply the extender. Now you need to solve the problems of power source. It is a bit troubling, isn’t it? The new solution PoE network extender( also named PoE extender) can help you get rid of the power source issue. The poe network extender is taking the advantages of power over Ethernet technology. So what is PoE?

PoE, which stands for Power over Ethernet, means sending data and electric power to remote devices through one cable. While using PoE product, both power and network can be transported over single Ethernet cable. It provides final solution for both power supply and network extension.

There are some advantages of using PoE. First, it saves time and money. The setup of power cable requires a qualified technician, so you have to pay them to do cabling work. Sometimes it will take long time to finish the job. But now you won’t worry about this while using PoE. The PoE power system is running under DC48V which is perfectly safe for human being. The power signature architecture guarantees the power can be sent to the right place.

The PoE network extender has integrated PoE technology to extend network which take care of both power and data transporting. Usually the DC48V power is injected in the center and passes through the cable to each of the extender. Therefore no power outlet is needed if you use PoE network extender. For example, you want to setup network link which is 300 meters far. You will need an PoE injector, two PoE extenders and three rolls of 100m network cable. At the beginning of the connection, the one end of RJ45 will be connected to PoE injector, then another end will connect to input of extender. The output of PoE extender will be linked to the second 100m Ethernet cable. Repeat the same steps to join third 100 meters cable. The final RJ45 will be connected to your PC network.

Why use PoE network extender? Like what we mentioned above, the PoE saves installation time and cost. Simple plug and play. No programmed required. The PoE network extender is transparent to the network protocols. Inline power allow PoE extender removing the outlet closed to each network extender. The power will send from the center, power backup become possible from the center. Using PoE network extender also provides more flexibility while deploying the network device. Where the cable goes, the power source follows. PoE network extender can be buried under the ground with protective closure.

Some people may ask whether PoE network extender is fit into non-PoE devices or not. The answer is Yes. The PoE network extender always detects the signal feedback from remote device before releasing the power. If no-PoE device is connected to the extender, it will send the data without power. The PoE extender also can supply the poe device at remote end. When extender is connected to device such as PoE IP camera and access point at the end of the Ethernet cable, the remained power can supply those devices as well as the network. It is extremely convenient to deploy the network when the power source is difficult to acquire. The below is the video how PoE extender working with both PoE and NON-PoE devices.