Digital Video Recorders

A digital video recorder (DVR) is designed to record surveillance video specifically from analog signal CCTV cameras.  A DVR takes the analog signal and digitizes it in order to display and record it on a hard drive as well as transmit it over the network to client machines for live and recorded viewing.  A DVR has direct CCTV inputs for each camera.  DVRs come in 4, 8,16, and 32 channel systems.  Each channel can display and record one camera.



  • Compatible with traditional CCTV cameras
  • Lower deployment costs especially when existing CCTV infrastructure exists
  • Newer DVRs capable for real-time (30 FPS) full D1 (DVD Quality) or 960H resolution recording
  • Easily stackable for lower cost solution for larger deployments
  • Stackable with NVRs for Hybrid deployments using central monitoring software
  • Compatible with older PTZ (Pan-Tilt-Zoom) cameras that utilize RS-485 for communication


Variations in Recorder Technology

There are many variations in DVR (digital video recording) technologies.  Digital video recorders come in a variety of platforms including PCI/PCIE capture cards along with software that can be run top traditional PC-based hardware architecture and run on top of a Windows, MAC or Linux operating system and embedded systems that come as a complete all-in-one system.  Which type of system you choose and from which manufacturer varies upon the number and type of cameras, how much room for expansion you require and the features you desire.


Free Consultation

Evyn Security offers free consultations to help you compare options that will best suit your needs.  We can provide system specifications and show you system features and limitations.  We can show you a demonstration of the system quality and features.  Call or email us today to schedule a site visit or consultation.


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Frequently Asked Questions

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Frequently Asked Questions