Dahua nvr4208-8p User Manual

89
Name
Function
MIC IN
Audio input port
Bidirectional talk input port. It is to receive the analog
audio signal output from the devices such as
microphone, pickup.
MIC OUT
Audio output port
Audio output port. It is to output the analog audio signal
to the devices such as the sound box.
 Bidirectional talk output.
 Audio output on 1-window video monitor.
 Audio output on 1-window video playback.
1～4
Alarm input port
1～4
 There are two types; NO (normal open)/NC
(normal close).
 When your alarm input device is using external
power, please make sure the device and the NVR
have the same ground.
GND
Alarm input ground port.
N1, N2
Alarm output port
1～2
 2 groups of alarm output ports. (Group 1：port
NO1～C1,Group 2:port NO2～C2).Output alarm
signal to the alarm device. Please make sure there
is power to the external alarm device.
 NO：Normal open alarm output port.
 C：Alarm output public end.
C1, C2
A
RS-485
communication
port
RS485_A port. It is the cable A. You can connect to the
control devices such as speed dome PTZ.
B
RS485_B.It is the cable B. You can connect to the
control devices such as speed dome PTZ.
Network port
10M/100M/1000Mbps self-adaptive Ethernet port.
Connect to the network cable.
USB2.0
port
USB2.0 port. Connect to mouse, USB storage device,
USB burner and etc.
RS-232
RS-232 debug
COM.
It is for general COM debug to configure IP address or
transfer transparent COM data.
HDMI
High Definition
Media Interface
High definition audio and video signal output port. It
transmits uncompressed high definition video and
multiple-channel data to the HDMI port of the display
device. HDMI version is 1.4.
VGA
VGA video
output port
VGA video output port. Output analog video signal. It
can connect to the monitor to view analog video.

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