Dahua NVR21-S2 SERIES

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Video
Parameters
Video Input
16/32/64-ch network compression video input
Video Output
2-channel VGA
2-channel HDMI.
Video
Compression
Standard
H.264
Window Split
Mode
1/4/8/9/16/25/36/64-screen.
Alarm
Parameters
Alarm Input
16-channel
Alarm Output
6-channel relay output
Decode
Parameters
Decode Type
MPEG4, MJPEG, H.264, H.265
Decode Capability
H.264/H.265: 64-channel×D1, 32-channel×720P, 16-channel
1080P; 4-channel 4K.
Functions
Record Mode
Manual recording, motion detection recording, schedule
recording and alarm recording.
Priority: Manual recording>card number recording-> alarm
recording>motion detection recording>schedule recording.
Multi-Channel
Playback
Max support 16-channel 1080P playback at the same time.
Motion Detect
Each screen supports 396/330((PAL 22×18, NTSC 22×1 5)
detection zones. Various sensitivity levels.
Privacy Mask
Each channel supports 4 privacy mask zones.
Record Mode
Overwrite
Backup Mode
Flash disk, eSATA, DVD burner.
Network
Function
Network Protocol
IPv4/IPv6/HTTP/UPnP/NTP/SADP/SNMP/PPPoE/DNS/FTP/
ONVIF(Version 2.4)/PSIA
SATA Port
4 SATA Ports
eSATA Port
1 eSATA port
RS232 Port
1 RS232 port. To debug and transmit COM data.
RS485 Port
1 RS485 port. To control peripheral PTZ and etc. Support
various protocols.
USB Port
1 USB 2.0 port at the front panel and 2 USB3.0 ports at the
rear panel.
HDMI Port
2 HDMI ports
Network Port
2 RJ45 10/100/1000Mbps self-adaptive Ethernet ports
Power Port
One power socket. Power adapter power supplying. Input AC
100V~240V, 50Hz~60Hz.
Power On-off
Button
One at the rear panel.