External PoE/Internal PoE Explained

Our 4 Channel Ultra HD NVRs come in two varieties, One (Diagram A) with PoE (Power over Ethernet) built in and another (Diagram B) in which you would use an external PoE Switch.

Below is a explanation of what the advantages and disadvantages are for both methods with diagrams of how the systems would be setup.

Click the diagrams for the full image.

     (A) NVR with Built in PoE                (B) NVR With external PoE Switch

Diagram A shows that the cameras each need to be connected to the recorder. This method generally uses more cable but has no need for a seperate PoE switch. The recorder will power the cameras through the built in PoE (cable length up to 90m each) and the data will feed direct into the machine as opposed to over a the network.

Diagram B shows a different setup with an external PoE switch. The main benefit of having an external switch would be to reduce the amount of cable you will use. A separate PoE switch allows you to run one single cable length up to 90 metres and then connect four cameras to the switch which can again be run to 90m. The downside to the PoE switch option is that you will require an additional mains source to power the PoE switch.

Want to know more about our Ultra HD IP NVR range or need any advice about CCTV in general then feel free to call:

 James or Kyle on 01748 811991