PoE has become an essential tool for powering not just security cameras but a whole range of network devices. Having a system based on PoE means you not only get the convenience of using a single cable for data and power but are also less dependent on power outlets for installations. Obviously, this will save you a lot of time and headache.
PoE can be used for a lot of different network devices. Not only that, but different PoE power ratings can support other devices by increasing power usage. PoE can support cameras, telephones, and even higher-power users like specialized monitors.
If you're using a PoE based system, you may be wondering what kinds of devices your system can support. This will all depend on what type of PoE power rating you are using. You may have already explored what PoE is and have an understanding of this technology and how it can benefit your network devices.
Over the years, Power over Ethernet has become popular as a single system for power and network access. Advances and adoption of PoE mean this tech supports more and more devices. As PoE becomes more advanced, so do the power needs. This is why there have been developments for the support of more power-hungry devices. To understand the differences in all the different PoE ratings, let’s take a look at them:
To understand better how these power ratings make use of the PoE system, you need to know how it uses an ethernet cable to transfer power. Ethernet cables contain four sets of twisted copper wire pairs. For PoE standard and PoE +, only two of these wire pairs are utilized to transfer power. The other two transfer the data over the network. With the higher PoE rating, all four of the twisted pairs are energized to transfer power.
The limitations of all types of PoE when it comes to distance are also worth mentioning. While some ratings offer more power, they all have limited the inherent properties of transferring power over a cable. All PoE systems will have a limitation of around 300 feet without needing extra power for operation.
Now that we have an understanding of the different power ratings for PoE, we can have a look at the types of devices that are used for each rating. Keep in mind that just because a device fits into the desired power usage rating does not necessarily mean it is fit for PoE usage. Non-PoE devices on a PoE network can get damaged if the power is not managed correctly.
Here are some devices you can use on PoE networks:
As you can see, there are lots of different devices that can be incorporated into your PoE based system. Keep in mind what kind of power usage your devices will need. This will determine which of the PoE power ratings you should use.
It all depends on what type of devices you intend to have on your system. If you are only using IP cameras or VOIP phones, like the ring-U Hello Hub (on Amazon), you can probably manage with a PoE standard-based system. If you want to set-up a more robust and expandable system, you might consider using a higher PoE rating, like PoE +.
The higher PoE ratings come at a higher price, so consider whether or not you are willing to shell out the extra cash on installation. You might also consider the lifespan of your devices and your system. Most PoE switches only last about five years, so that means you might be needing an upgrade sooner than you think.
Imagine what kind of devices that may be needed in the next ten years. Do you think that you might be using video conferencing or thin clients in the future? If so, saving yourself the headache now and upgrading is a good idea. But If you already have a PoE standard-based system, you might not need to upgrade.
Depending on how many devices you will be using that need the extra power, you might be able to piece together solutions as you go. You can also substitute PoE Power Injectors, such as the Cudy Gigabit (on Amazon) when needed to support more power-hungry devices.
Now that you know more about PoE, the different ratings, and all the devices you can use, setting up your system for multiple types of devices should be possible. Always make sure you are using the right equipment for the job and consider your future needs, and you should be setting up a robust system that can work for years.