Dahua XVR4108HS User Manual

343
Item
Note
Effective Time
Check the box here to enable this function and then set
period time.
Sharpness
The value here is to adjust the edge of the video. The
value ranges from 0 to 100. The larger the value is, the
clear the edge is and vice versa. Please note there is
noise if the value here is too high. The default value is 50
and the recommended value ranges from 40 to 60.
Brightness
It is to adjust monitor window bright. The value ranges
from 0 to 100. The default value is 50.
The larger the number, the bright the video is. When you
input the value here, the bright section and the dark
section of the video will be adjusted accordingly. You
can use this function when the whole video is too dark or
too bright. Please note the video may become hazy if the
value is too high. The recommended value ranges from
40 to 60.
Contrast
It is to adjust monitor window contrast. The value ranges
from 0 to 100. The default value is 50.
The larger the number, the higher the contrast is. You
can use this function when the whole video bright is OK
but the contrast is not proper. Please note the video may
become hazy if the value is too low. If this value is too
high, the dark section may lack brightness while the
bright section may over exposure .The recommended
value ranges from 40 to 60.
Saturation
It is to adjust monitor window saturation. The value
ranges from 0 to 100. The default value is 50.
The larger the number, the strong the color is. This value
has no effect on the general brightness of the whole
video. The video color may become too strong if the
value is too high. For the grey part of the video, the
distortion may occur if the white balance is not accurate.
Please note the video may not be attractive if the value
is too low. The recommended value ranges from 40 to
60.
Gain
The gain adjust is to set the gain value. The default value
may vary due to different device models. The smaller the
value, the low the noise. But the brightness is also too
low in the dark environments. It can enhance the video
brightness if the value is high. But the video noise may
become too clear.
White level
It is to enhance image effect.

Dahua XVR4108HS Specifications

General

Video Compression	H.265+/H.265/H.264+/H.264
Audio Input/Output	1/1, RCA
USB	2 USB 2.0
Power Supply	DC12V/2A
Main Processor	Embedded Processor
Operating System	Embedded LINUX
HDCVI Camera	1080p@25/30 fps, 720p@25/30 fps
AHD Camera	1080p@25/30 fps, 720p@25/30 fps
TVI Camera	1080p@25/30 fps, 720p@25/30 fps
Record Mode	Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Video Loss, Tampering), Alarm, Stop
Video Output	1 HDMI, 1 VGA
Display Split	1/4/8/9
OSD	Camera title, Time, Video loss, Camera lock, Motion detection, Recording
Smart Phone	iPhone, iPad, Android
HDD	1 SATA Port, up to 6TB
Video Input	8 channels
IP Camera Input	8+2 channel, each channel up to 5MP
Recording Resolution	1080N, 720P, 960H, D1, HD1, CIF
Record Rate	Main Stream: 1080N/720P/960H/D1/HD1/BCIF/CIF/QCIF (1~25/30fps)
Bit Rate	32 Kbps–6144 Kbps per channel
Record Interval	1 ~ 60 min (default: 60 min), Pre-record: 1 ~ 30 sec, Post-record: 10 ~ 300 sec
Resolution	1920×1080, 1280×1024, 1280×720
Network Interface	RJ-45 port (10/100M)
Interoperability	ONVIF
Working Environment	-10°C to +55°C / 10% to 90% RH
Weight	0.75kg (without HDD)
Two-way Talk	Reuse audio input/output channel 1