NVR vs DVR: differences for a CCTV system
Understand the difference between IP and analogue recorders, their connections and expansion options.
The recorder determines which cameras the system accepts, how signals arrive and how much room remains for expansion.
NVR
It works with network cameras received through a PoE switch or integrated PoE ports.
DVR
It receives video over coax from analogue cameras, usually with separate camera power.
Capacity
Check channels, supported resolution, disks and bandwidth before expanding.
Mistakes to avoid
- Confusing network ports with PoE channels
- Adding cameras without checking channels
- Replacing the recorder without checking cameras
THEVULGO tip
A photo of the recorder model helps verify channels and compatibility.
Frequently asked questions
Can the price be confirmed before the visit?
Yes. Send photos, approximate measurements, quantity and the product reference. If a hidden difficulty appears, it is confirmed before continuing.
Which cities do you serve?
We serve Valencia, Madrid, Barcelona and Alicante. Coverage is confirmed according to the address and type of job.