Dahua nvr4208-8p User Manual

332
Figure 5-39
Please refer to the following sheet for detailed information.
Parameter
Function
SNMP Port
The listening port of the proxy program of the device. It is a
UDP port not a TCP port. The value ranges from 1 to 65535.
The default value is 161
Read Community
It is a string. It is a command between the manage process
and the proxy process. It defined the authentication, access
control and the management relationship between one proxy
and one group of the managers. Please make sure the device
and the proxy are the same.
The read community will read all the objects the SNMP
supported in the specified name. The default setup is public.
Write Community
It is a string. It is a command between the manage process
and the proxy process. It defined the authentication, access
control and the management relationship between one proxy
and one group of the managers. Please make sure the device
and the proxy are the same.
The read community will read/write/access all the objects the
SNMP supported in the specified name. The default setup is
write.
Trap address
The destination address of the Trap information from the proxy
program of the device.
Trap port
The destination port of the Trap information from the proxy
program of the device. It is for the gateway device and the
client-end PC in the LAN to exchange the information. It is a
non-protocol connection port. It has no effect on the network
applications. It is a UDP port not TCP port. The value ranges
from 1 to 165535. The default value is 162.
SNMP version
 Check V1, system only processes the information of V1.
 Check V2, system only processes the information of V2.
5.8.2.12 Multicast
The multicast interface is shown as in Figure 5-40.
Multicast is a transmission mode of data packet. When there is multiple-host to receive the same data

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