Technical Specifications
57
Version update
Software update
Update NVR through U disk, COM port or the NVR
Station
Video unit
Update the video unit through the NVR Station
Event alarm
Motion detection
Supporting a maximum of 4 areas
Alarm schedule
A maximum of four periods every day
Video source loss alarm
Supported
Device
networking
Network environment
Supporting networks of different providers, NAT
traversal, and Socks5 proxy
Communication
protocol
DHCP, PPPoE, SNTP, DDNS, IEEE802.3, RTP,
RTCP, and VSIP
Conventional
parameters
Operating voltage
100VAC - 240VAC
Placement
Place on a table or mount on a bracket Horizontally
Operating temperature
0ºC - 50 ºC
Relative Humidity
10% - 85 % (non-condensing)
Operating Altitude
-60
～
5000m
5.3
NVR2820E
Audio/video
Video system
Video
PAL/NTSC
VGA
NVR2820E-9D/-16D supported 720P
Video compression
MPEG-4, H.264
Resolution
Main stream: 720P, D1, CIF
Minor stream: CIF, QCIF
Frame rate
1/16~30 fps (adjustable)
Code rate
64kbps - 4Mbps (adjustable)
Audio compression
G.711, ADPCM
Transport delay
<300 ms
Recording
Pre-Recording
Maximum alarm pre-recording time: 30 s;
Storage policy
Storage with built-in hard disk or external USB hard disk
Summary of Contents for NVR2820L
Page 1: ...NVR Administrator Guide...
