Dahua nvr4208-8p User Manual

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4.13.3 Face Detect (Optional)
Please make sure you are connecting to the smart network camera, otherwise you can not
use IVS function!
When camera detects human face, system can generate an alarm.
From main menu->Setting->Event->Face detect, the interface is shown as in Figure 4-107.
 Face ROI: Check the box here, system can enhance the human face display pane.
 Log: Check the box here, system can record face detect log.
You can refer to the chapter 4.13.2.1 t to set other parameters.
Figure 4-107
4.13.4 Audio Detect (Optional)
Please make sure you are connecting to the smart network camera, otherwise you can not
use IVS function!
System can generate an alarm once it detect the audio input is abnormal or audio volume changes.
From main menu->Setting->Event->Audio detect, you can see an interface shown as in Figure 4-108.
 Input abnormal: Check the box here, system can generate an alarm once the audio input is
abnormal.
 Intensity change: Check the box here, system can generate an alarm once the audio volume
becomes strong.
 Sensitivity: It refers to the audio recognition sensitivity. The higher the value is, the higher the
sensitivity is.

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