Dahua nvr4208-8p User Manual

315
Figure 5-20
Please refer to the following sheet for detailed information.
Parameter
Function
Channel
Please select a channel from the dropdown list.
Period
It divides one day (24 hours) to two periods. You can set
different hue, brightness, and contrast for different periods.
Hue
It is to adjust monitor video brightness and darkness level. The
default value is 50.
The bigger the value is, the large the contrast between the bright
and dark section is and vice versa.
Brightness
It is to adjust monitor window brightness. The default value is 50.
The larger the number is , 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
value ranges from 0 to 100.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 is, 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 is, 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

Dahua nvr4208-8p Specifications

General

Operating System	Embedded LINUX
IP Camera Input	8 channel
Two-way Talk	1 channel Input, 1 channel Output, RCA
Interface	1 HDMI, 1 VGA
OSD	Camera title, Time, Video loss, Camera lock, Motion detection, Recording
Record Interval	1 ~ 120 min (default: 60 min), Pre-record: 1 ~ 30 sec, Post-record: 10 ~ 300 sec
Ethernet	1 RJ-45 Port (10/100/1000Mbps)
Max. User Access	128 users
Smart Phone	iPhone, iPad, Android
HDD Bays	1
Operating Temperature	-10°C ~ +55°C (+14°F ~ +131°F)
Main Processor	Dual-core embedded processor
Multi-screen Display	1/4/9
Video Detection and Alarm	Motion Detection, MD Zones: 396 (22 x 18), Video Loss, Camera Blank
Alarm input	4
Relay Output	2
Compression	H.265, H.264
Recording Resolution	Up to 8MP
Record Mode	Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Camera Blank, Video Loss)
PoE	8 ports (IEEE802.3af/at)
Protocols	HTTP, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE, DDNS, FTP, Alarm Server, IP Search (Support Dahua IP camera, DVR, NVS, etc.)
USB Interface	2 USB2.0
Power Supply	AC 100~240V, 50/60 Hz
Power Consumption	NVR: <10W (without HDD), PoE: Max 25.5W for single port, 130W total
Operating Humidity	10%~90% RH