Dahua Technology DH-XVR71 H-4K-I2 Series, User Manual

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User’s Manual
2
Storage Management

Special data format to guarantee data security and avoid the risk of modifying data viciously.

Support digital watermark.
Compression Format
Support multiple-channel audio and video signal. An independent hardware decodes the audio and
video signal from each channel to maintain video and audio synchronization.
Backup Function

Support backup operation through USB port (such as USB storage disk, portable HDD, and
burner).

Client-end user can download the file from local HDD through network to backup.
Record & Playback

Support each channel real-time record independently, and simultaneously support the functions
such as search, backward play, network monitor, record search, and download.

Support various playback modes: slow play, fast play, backward play and frame by frame play.

Support time title overlay so that you can view event accurate occurred time.

Support zooming in the selected area in the live view.
Network Operation
Support network remote real-time monitor, remote record search and remote PTZ control.
Alarm Activation

Several relay alarm outputs to realize alarm activation and on-site light control.

The alarm input port and output port have the protection circuit to guarantee the Device safety.
Communication Port

RS-485 port can realize alarm input and PTZ control.

RS-232 port can connect to keyboard, COM port of PC or the matrix control.

Standard Ethernet port can realize network remote access function.

The dual-network port has the multi-address, fault tolerance, load balance setup mode.
PTZ Control
Support PTZ decoder through RS-485 port.
Intelligent Operation

Support mouse operation function.

Support "copy and paste" function for the same settings.
UPnP (Universal Plug and Play)
Establish mapping connection between LAN and WAN through UPnP protocol.
Camera Self-adaptive
Auto-recognize and work with the PAL or NTSC camera and HD camera.