United States
Q
What is Dahua 4K CVI technology?
A
Dahua 4K CVI is an analog video transmission standard that delivers 3840×2160 Ultra HD resolution over coaxial cables with low latency and high reliability for professional surveillance.
Q
How does Dahua 4K CVI differ from HD-TVI and IP cameras?
A
Dahua 4K CVI offers native 4K resolution and extended coax transmission like HD-TVI but with higher clarity, while maintaining plug-and-play simplicity without IP network bandwidth constraints.
Q
What resolution and frame rates does Dahua 4K CVI support?
A
Dahua 4K CVI supports 3840×2160 resolution at 15 fps and 1920×1080 resolution at up to 30 fps, balancing Ultra HD detail with smooth motion capture.
Q
Can Dahua 4K CVI transmit over existing coaxial cables?
A
Yes. Dahua 4K CVI leverages existing RG59/RG6 coaxial infrastructure to deliver 4K video without the need for cable upgrades, minimizing installation costs.
Q
What is the maximum transmission distance for Dahua 4K CVI?
A
Over RG59 coax, Dahua 4K CVI achieves up to 800 m for 4K and 1,200 m for 1080p at optimal signal conditions without repeaters.
Q
Does Dahua 4K CVI support two-way audio?
A
Yes. Compatible cameras and DVRs support embedded two-way audio over coax, enabling real-time communication and monitoring.
Q
Is Dahua 4K CVI compatible with smart home integrations?
A
Yes. Dahua 4K CVI integrates with Amazon Alexa, Google Assistant, and the Dahua DMSS app for voice control, notifications and seamless connectivity.
Q
How do I install a Dahua 4K CVI camera system?
A
Connect cameras to a Dahua CVI DVR via coax, supply power via PoC or 12 V DC, configure channels on the DVR interface, and verify live video output.
Q
What features enhance night vision in Dahua 4K CVI cameras?
A
Dahua 4K CVI cameras feature Smart IR up to 150 ft, Starlight low-light technology and 120 dB Wide Dynamic Range for clear images in challenging lighting.
Q
Can I upgrade from a lower-resolution CVI system to 4K?
A
Yes. Replace existing cameras with 4K CVI models and ensure your DVR supports 4K input; you can reuse coaxial cabling and, if needed, upgrade the DVR.
Q
How does Dahua 4K CVI perform in varying weather conditions?
A
Dahua 4K CVI cameras are IP67-rated for dust and water resistance and operate from –40 °F to 140 °F, ensuring reliable outdoor surveillance.
Q
Can Dahua 4K CVI cameras record audio?
A
Yes. Models with built-in microphones or audio inputs record synchronized audio and video to a compatible Dahua DVR.
Q
What are the recording storage options for Dahua 4K CVI?
A
DVRs support multiple HDDs up to 10 TB each, USB drives and NAS via network, offering flexible storage and backup choices.
Q
Does Dahua 4K CVI support remote viewing on mobile devices?
A
Yes. Use the Dahua DMSS app for iOS/Android or ONVIF-compatible third-party apps for live view and playback from anywhere.
Q
What power sources do Dahua 4K CVI cameras use?
A
Dahua 4K CVI cameras can be powered by 12 V DC, PoC (Power over Coax) or PoE (via hybrid DVR), simplifying installation and cabling.
Q
Are there built-in analytics in Dahua 4K CVI cameras?
A
Yes. They offer intelligent analytics like motion detection, line crossing, intrusion detection and face detection to proactively enhance security.
Q
How does Dahua 4K CVI ensure cybersecurity and data protection?
A
Dahua 4K CVI employs AES encryption, secure firmware updates, strong password policies and DVR network segmentation to safeguard video and data.
