Dahua HDW2231T-AS IP Network camera 2.8mm

Camera

Image Sensor
1/2.8" CMOS

Max. Resolution
1920 (H) × 1080 (V)

ROM
128 MB

RAM
128 MB

Scanning System
Progressive

Electronic Shutter Speed
Auto/Manual 1/3 s–1/100,000 s

Min. Illumination
0.002 Lux@F1.6 (Color, 30 IRE)
0.0002 Lux@F1.6 (B/W, 30 IRE)
0 Lux (Illuminator on)

S/N Ratio

56 dB

Illumination Distance
30 m (98.43 ft) (IR)

Illuminator On/Off Control
Auto; Manual

Illuminator Number
2 (IR LED)

Pan/Tilt/Rotation Range
Pan: 0°–360°
Tilt: 0°–78°
Rotation: 0°–360°

Lens

Lens Type
Fixed-focal

Lens Mount
M12

Focal Length
2.8 mm

Max. Aperture
F1.6

Field of View
2.8 mm: H: 107°; V: 56°; D: 127°

Iris Control
Fixed

Close Focus Distance
2.8 mm: 0.7 m (2.30 ft)

DORI Distance

Smart Event

IVS
Tripwire; Intrusion

Video

Video Compression
H.265; H.264; H.264B; MJPEG (Only supported by the sub stream)

Smart Codec
Smart H.265+; Smart H.264+

Video Frame Rate

• Main stream: 1920 × 1080 @ 1–25/30 fps
• Sub stream: 704 × 576 @ 1–25 fps / 704 × 480 @ 1–30 fps
  The values above are the max frame rates of each stream; for multiple streams, the values will be subject to total encoding capacity.

Stream Capability
2 streams

Resolution
1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576 / 704 × 480); VGA (640 × 480); CIF (352 × 288 / 352 × 240)

Bit Rate Control
CBR / VBR

Video Bit Rate

• H.264: 32 kbps–6144 kbps
• H.265: 12 kbps–6144 kbps

Day/Night
Auto (ICR) / Color / B/W

BLC
Yes

HLC
Yes

WDR
120 dB

White Balance
Auto; Natural; Street lamp; Outdoor; Manual; Regional custom

Gain Control
Auto; Manual

Noise Reduction
3D NR

Motion Detection
OFF / ON (4 areas, rectangular)

Region of Interest (RoI)
Yes (4 areas)

Smart Illumination
Yes

Image Rotation
0° / 90° / 180° / 270° (Supports 90° / 270° with 1080p resolution and lower)

Mirror
Yes

Privacy Masking
4 areas

Audio

Built-in MIC
Yes

Audio Compression
G.711a; G.711Mu; G.726; PCM

Alarm

Alarm Event
No SD card; SD card full; SD card error; network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio abnormality; voltage detection; security exception

Network

Network Port
RJ-45 (10/100 Base-T)

SDK and API
Yes

Cyber Security
Video encryption; Firmware encryption; Configuration encryption; Digest; WSSE; Account lockout; Security logs; IP/MAC filtering; Generation and importing of X.509 certification; Syslog; HTTPS; 802.1x; Trusted boot; Trusted execution; Trusted upgrade

Network Protocol
IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; Bonjour

Interoperability
ONVIF (Profile S / Profile G / Profile T); CGI; P2P; Milestone

User/Host
20 (Total bandwidth: 48 M)

Storage
FTP; SFTP; Micro SD card (supports max. 256 GB); NAS

Browser
IE; Chrome; Firefox

Management Software
Smart PSS; DSS; DMSS

Mobile Client
iOS; Android

Certification

Certifications

• CE-LVD: EN 62368-1
• CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU
• FCC: 47 CFR FCC Part 15, Subpart B

Power

Power Supply
12 V DC / PoE (802.3af)

Power Consumption

• Basic: 1.8 W (12 V DC); 2.4 W (PoE)
• Max. (ICR + H.265 + max. resolution + main stream + IR intensity + WDR + IVS): 5.5 W (12 V DC); 6.1 W (PoE)

Environment

Operating Temperature
-40 °C to +60 °C (-40 °F to +140 °F)

Operating Humidity
≤ 95%

Storage Temperature
-40 °C to +60 °C (-40 °F to +140 °F)

Protection
IP67