Dahua nvr4208-8p User Manual

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4.12 Backup
4.12.1 File Backup
In this interface, you can backup record file to the USB device.
a) Connect USB burner, USB device or portable HDD and etc to the device.
b) From Main menu->Backup, you can go to the Backup interface. See Figure 4-84
Figure 4-84
c) Select backup device and then set channel, file start time and end time.
d) Click add button, system begins search. All matched files are listed below. System automatically
calculates the capacity needed and remained. See Figure 4-85.
e) System only backup files with a √ before channel name. You can use Fn or cancel button to
delete √ after file serial number.
f) Click backup button, you can backup selected files. There is a process bar for you reference.
g) When the system completes backup, you can see a dialogue box prompting successful backup.

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