Dahua nvr4208-8p User Manual

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Figure 4-93
Motion detect here only has relationship with the sensitivity and region setup. It has no relationship
with other setups.
4.13.1.2 Tampering
When someone viciously masks the lens, or the output video is in one-color due to the environments
light change, the system can alert you to guarantee video continuity. Tampering interface is shown as
in Figure 4-94. You can enable “Alarm output “or “Show message” function when tampering alarm
occurs.
 Sensitivity: The value ranges from 1 to 6. It mainly concerns the brightness. The level 6 has the
higher sensitivity than level 1. The default setup is 3.
Tips:
You can enable preset/tour/pattern activation operation when video loss occurs.
Please refer to chapter 4.13.1.1 motion detection for detailed information.
Note:
 In Detect interface, copy/paste function is only valid for the same type, which means you can not
copy a channel setup in video loss mode to tampering mode.
 About Default function. Since detection channel and detection type may not be the same, system
can only restore default setup of current detect type. For example, if you click Default button at
the tampering interface, you can only restore default tampering setup. It is null for other detect
types.
 System only enables tampering function during the period you set here. It is null for motion detect
or video loss type.

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