DS-2CD2821G0

Video
Main Stream
50 Hz: 25 fps (1920 × 1080, 1280 × 720)

60 Hz: 30 fps (1920 × 1080, 1280 × 720)
Sub-Stream
50 Hz: 25 fps (640 × 480, 640 × 360)

60 Hz: 30 fps (640 × 480, 640 × 360)
Video Compression
Main stream: H.265+/H.265/H.264+/H.264

Sub-stream: H.265/H.264/MJPEG
Video Bit Rate32 Kbps to 8 Mbps
H.264 TypeBaseline Profile/Main Profile/High Profile
H.265 TypeMain Profile
Region of Interest (ROI)1 fixed region for main stream

Audio
Audio CompressionG.711ulaw/G.711alaw/G.722.1/G.726/MP2L2/PCM/AAC
Audio Bit Rate64 Kbps (G.711)/16 Kbps (G.722.1)/16 Kbps (G.726)/32 to 160 Kbps (MP2L2)/16 to 64 Kbps (AAC)
Audio Sampling Rate8 kHz/16 kHz
Environment Noise FilteringYes

Network
ProtocolsTCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, PPPoE, NTP, UPnP™, SMTP, SNMP, IGMP, 802.1X, QoS, IPv6, Bonjour, IPv4, UDP, SSL/TLS
Simultaneous Live ViewUp to 6 channels
APIOpen Network Video Interface (Profile S, Profile G, Profile T), ISAPI
User/HostUp to 32 users. 3 user levels: administrator, operator and user
Network StorageNAS (NFS, SMB/CIFS), auto network replenishment (ANR)
ClientiVMS-4200, Hik-Connect, Hik-Central
Web Browser
Plug-in required live view: IE 10+

Plug-in free live view: Chrome 57.0+, Firefox 52.0+

Local service: Chrome 57.0+, Firefox 52.0+

Image
Image SettingsRotate mode, saturation, brightness, contrast, sharpness and white balance adjustable by client software or web browser
Day/Night SwitchDay, Night, Auto, Schedule
Wide Dynamic Range (WDR)120 dB
Image EnhancementBLC, HLC, 3D DNR

Interface
Ethernet Interface1 RJ45 10 M/100 M self-adaptive Ethernet port
On-Board StorageBuilt-in memory card slot, support microSD card, up to 256 GB
Built-in MicrophoneYes
Audio
1 input (line in), 3.5 mm connector, max. input amplitude: 3.3 vpp, input impedance: 4.7 KΩ, interface type: non-equilibrium;

1 output (line out), 3.5 mm connector, max. output amplitude: 3.3 vpp, output impedance: 100 Ω, interface type: non-equilibrium.
Alarm1 input,1 output (max. 12 VDC, 30 mA)
RS-4851 RS-485 (half duplex, HIKVISION, Pelco-P, Pelco-D, self-adaptive)
Reset KeyYes
Power Output12 VDC, 100 mA

Event
Basic EventMotion detection, video tampering alarm, exception
Smart EventLine crossing detection, intrusion detection
LinkageUpload to NAS/memory card/FTP, notify surveillance center, send email, trigger recording, trigger capture

General
Power
12 VDC ± 25%, 0.63 A, max. 7.5 W, two-core terminal block, reverse polarity protection;

24 VAC ± 20%, 0.52 A, max. 7.5 W, two-core terminal block

PoE: 802.3af, 36 V to 57 V, 0.24 A to 0.15 A, max. 8.5 W
Dimension68 mm × 56.3 mm × 132.3 mm (2.7″ × 2.2″ × 5.2″)
Package Dimension216 mm × 121 mm × 118 mm (8.5″ × 4.8″ × 4.6″)
WeightApprox. 435 g (1.0 lb.)
With Package WeightApprox. 623 g (1.4 lb.)
Storage Conditions-10 °C to 40 °C (14 °F to 104 °F). Humidity 95% or less (non-condensing)
Startup and Operating Conditions-10 °C to 40 °C (14 °F to 104 °F). Humidity 95% or less (non-condensing)
Language
33 languages

English, Russian, Estonian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak,

French, Polish, Dutch, Portuguese, Spanish, Romanian, Danish, Swedish, Norwegian,

Finnish, Croatian, Slovenian, Serbian, Turkish, Korean, Traditional Chinese, Thai,

Vietnamese, Japanese, Latvian, Lithuanian, Portuguese (Brazil), Ukrainian
General FunctionAnti-flicker, heartbeat, mirror, password protection, one-key reset, privacy mask, watermark, IP address filter

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