Dahua DH-XVR42 AN-I Series User Manual page 18

Sensor Integration
Integrate coaxial cameras with diverse array of sensors such as temperature, humidity and wireless
alarm devices.
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.
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User's Manual