Dahua XVR4108HS User Manual

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network adapter reboot and network becomes off. That is to say, MTU modification
can affect current network service. System may pop up dialog box for you to confirm
setup when you want to change MTU setup. Click OK button to confirm current reboot,
or you can click Cancel button to terminate current modification. Before the
modification, you can check the MTU of the gateway; the MTU of the DVR shall be the
same as or is lower than the MTU of the gateway. In this way, you can reduce packets
and enhance network transmission efficiency.
The following MTU value is for reference only.

1500: Ethernet information packet max value and it is also the default value. It is
the typical setup when there is no PPPoE or VPN. It is the default setup of some
router, switch or the network adapter.

1492: Recommend value for PPPoE.

1468: Recommend value for DHCP.

Preferred DNS server: DNS server IP address.

Alternate DNS server: DNS server alternate address.

Transfer mode: Here you can select the priority between fluency/video qualities.

LAN download: System can process the downloaded data first if you enable this
function. The download speed is 1.5X or 2.0X of the normal speed.
Click Apply or Save to complete setup.
Figure 4- 118

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