Dahua NVR21-S2 SERIES

25
System
System
Resource
s
8/16/32-channel series product support 8/16/32-channel HD connection
respectively. The main stream bandwidth supports 80/160/320Mbps.
Operation
System
Embedded Linux real-time operation system
Operation
Interface
WEB/Local GUI
Decode
Video
Compres
sion
MPEG4, MJPEG, H.264, H.265
Decode
Capacity
H.264/H.265: Max supports 64-channel D1, or 32-channel 720P,
16-channel 1080P or 4-channel 4K decode.
Video
Video
Input
8/16/32-ch network compression video input
Video
Output
1-channel VGA analog video output.
HDMI
1-ch HDMI output. Version number is 2.0
Window
Split
1/4/8/9/16/25/36-window
Audio
Audio
Input
1-ch bidirectional talk input
Audio
Output
1-ch bidirectional talk output
Audio
Compres
sion
G.711a, G.711u, PCM, G.726 (The bidirectional talk function supports
G.711a, G.711u, PCM only.)
Alarm
Alarm
Input
4-ch alarm input
Alarm
Output
2-ch relay output
Function
Storage
2 built-in SATA ports.
Multiple-c
hannel
Playback
Max 64-channel D1/32-channel 720P/16-channel 1080P/4-channel 4K
playback at the same time.
Record
Mode
Overwrite
Backup
Mode
Flash disk, DVD burner.
Port and
Indicator
Network
Protocol
IPv4/IPv6/HTTP/UPnP/NTP/SADP/SNMP/PPPoE/DNS/FTP/ONVIF(Versio
n 2.4)/PSIA
RS232
Port
One RS232 port to debug transparent COM data.