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Commonly referred to as: HD-CVI, HD CVI, CVI, CVI HD

High-Definition Composite Video Interface (HD-CVI) is a proprietary HD Analog technology developed by the Chinese security product manufacturer, Dahua. HD-CVI solutions are capable of transmitting HD video over standard analog coaxial cabling up to 1300’ (1080p) and 1600’ (720p). HD-CVI recorders are compatible with all analog and like-branded HD-CVI cameras, in limited configurations.

HD-CVI offers comparable resolution to other HD CCTV formats, but a lower quality image than both HD-SDI and HD-TVI technology. The technology is capable of long video transmission distances (second only to HD-TVI), but is limited in both camera compatibility and configurability – and currently offers no IP camera support.

  • What You Need to Know:HD-CVI meets the promise of delivering HD resolution video over coaxial cable over long transmission distances. However, HD-CVI provides a lower image quality and is limited in both camera compatibility and configuration flexibility.
HD-CVI Capabilities
Max Resolution 1080p
Transmission Distance Coaxial Cable (RG59) 1300’ (720p), 1600’ (1080p)
Twisted Pair (CAT5) 650’
DVR Input Compatibility Analog All cameras, on limited channels, in limited configurations
HD Like-branded HD-CVI cameras, on any channel, in any configuration
Standard Protocol(s) HDCVI 2.0

HD-CVI Features & Benefits

  • Supports up to 960H Analog, 720p and 1080p HD-SDI cameras
  • Transmits with zero latency over standard coax cabling (smooth motion)
  • Backwards compatible with all analog cameras and standard coaxial cabling
  • Features digital zoom capabilities in both live and playback mode
  • Hybrid recorder accepts select standard definition analog (CIF-960H), and like-branded HD-CVI (720p & 1080p) cameras, in limited configurations

HD-CVI Limitations

  • Currently limited to 1080p full HD resolution
  • Only compatible with like-branded HD-CVI cameras
  • DVR hybrid configurations limited

Comparison: HD-CVI vs. Other HD Analog Formats

  • Longer transmission distances than HD-SDI and AHD
  • Comparable resolutions, lower image quality
  • Slightly shorter than HD-TVI
  • Limited compatibility w/ analog & HD cameras (similar to HD-SDI and AHD, inferior to HD-TVI)
  • Limited flexibility for DVR channel configurations (similar to HD-SDI and AHD, inferior to HD-TVI)

Which HD Technology is Right For You?

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