What is a PoE Switch?

First and foremost, a PoE switch can incorporate additional cameras to your NVR if you have additional channels open. For instance, a 32-channel NVR only has 16 built in PoE ports on the back. So by adding a PoE switch, you will be able to incorporate the remaining 16 channels into your security camera system. A secondary use of a PoE switch is that it can help you extend the distance of your IP cameras from your NVR. Typically, the maximum distance you can install an IP camera from an NVR is 300ft / 92m. This distance can be expanded significantly by running an ethernet cable from your router to a PoE switch up to 300ft away. Then you can install your IP cameras up to 300ft away from the PoE switch. This can also save you money on installation costs if you have a large property (or detached buildings) because you don't have to run every camera cable all the way back to the NVR. Multiple PoE switches can add even more distance if needed.