POE (Power over Ethernet) is a technology that allows you to supply power to devices, for e.g. security cameras, via the LAN cable. Save yourself from having to lay cables twice and save space as well as installation costs.
A switch structure also gives you advanced configuration options for powering devices over the network cable. Learn how easy it is to install security cameras with POE yourself.
The project
Suitable for: Beginners
Time required: from 45 minutes (depending on the number of security cameras)
Budget: from about 260 euros
What you need: Security camera: IMOU Bullet 2 Pro 2MP, Switch: UBI USW-E-8-POE, alternatively an Access Point: UBI UAPACPRO
Can be expanded with: additional security cameras
Why is POE worthwhile?
Before describing the project in more detail, let’s clarify what advantages POE-enabled devices bring and why they are well suited for this project.“Power over Ethernet” means that the power supply of a network-enabled device is transmitted via the LAN cable. Data transmission is not affected in the process. So one cable can be used for two purposes. This is especially useful when you need to run new lines to a device or you attach devices like cameras to multiple locations in and around the house that don’t have a power outlet in close proximity.
This saves valuable space (for example, in narrow cable ducts or under parquet skirting boards). In addition, tangled cables are a thing of the past, and installation costs are also reduced due to the reduced effort and resources required.
Installing POE-capable security cameras
But how can POE be used? To supply a device with power via the LAN cable, you need a POE adapter. In our case, we choose a model from Ubiquiti, which already includes a suitable adapter. Should you use an IP camera that doesn’t already come with a POE adapter, you need to choose one that uses the same standard.
The setup is very uncomplicated: You attach the camera to the desired location, connect the LAN cable to the POE adapter – and you’re ready to go.
POE adapter versus switch or access point
data-view template=”article” id=”314592″]Another option is to use a POE switch or access point instead of the adapter. The advantage here is that a single switch can supply multiple devices with data and power. This option is therefore particularly useful if more than one camera is installed.
It is possible to view statistics for individual devices or make special settings for individual ports via the app that comes with the switch.
The Ubiquity switch from our example automatically detects POE-capable devices and supplies them with power without any further installation steps.
Note:
As with the adapter, it is important to make sure that the same standards are used. In this case, both the camera and switch operate with IEEE 802.3af.
To ensure that the power supply works seamlessly with multiple devices, care should be taken when purchasing the switch to ensure that it has enough power to supply the devices with power as planned. So take a close look at the data sheets of the cameras as well as the switch here.
The LAN cable: What to consider
Which cable is suitable for POE installations? Basically, any LAN cable of type CAT5 or higher can be used. How long a cable can be depends on the required performance. Ideally, you will ensure the highest possible transmission performance with a high-quality cable.
You can find out more about the technical background, standards and cable types, performance classes and other additional information in this guide.
Important: When installing outdoors, it is essential to choose a network cable that is suitable for use in wind and weather. Special outdoor network cables have a weatherproof jacket that also protects against harmful UV rays. Damaged cables can become a serious hazard, so you should not compromise when choosing cables.
Image: Adobe Stock, reichelt
