Network Video Recorders

An NVR records footage from IP cameras over a network; a DVR records from analogue cameras over coaxial cable. Modern surveillance systems are IP-based, so new deployments use NVRs or recording appliances. If you’re running legacy analogue cameras, JD Security can design a migration path that reuses existing infrastructure where practical.

Camera count, resolution, frame rate, compression and retention period all drive your storage requirement — which is why JD Security calculates it per site rather than quoting a generic figure. Modern compression technologies significantly reduce what you need, but we run the calculation against your actual camera schedule and retention obligations, not an industry average.

Often, yes — support depends on the recorder’s platform and the cameras’ compliance with open standards such as ONVIF. Compatibility should be verified.

That depends on the redundancy designed into the system — RAID storage, failover recording, edge storage on cameras, or hybrid cloud replication. Redundancy is a design decision, not a product feature, and it’s specified against how much footage loss your organisation can tolerate.

For most Australian and New Zealand enterprises, the practical answer is hybrid: on-premises recording with cloud services for management, redundancy or extended retention. Bandwidth, data sovereignty and retention costs all factor in. JD Security designs both, so the recommendation follows your requirements rather than a product preference.

Yes. JD Security provides 24/7 support and preventative maintenance programmes across everything we install, including firmware updates, health monitoring and hardware lifecycle planning.