dahua logodahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - logoLite Series | DH-IPC-HDBW2431F-AS-S2
4MP Lite IR Fixed-focal Dome Network Camera
Owner’s Manual
dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera -

Series Overview

With upgraded H.265 encoding technology, Dahua Lite series network camera has efficient video encoding capacity, which saves bandwidth and storage space. This camera adopts the latest starlight technology and displays better color image in the condition of low illumination. It supports SD card storage, dust-proof function, waterproof function and vandal-proof function, complying to the standards of IP67 and IK10.


Smart H.265+ & Smart H.264+
With advanced scene-adaptive rate control algorithm, Dahua smart encoding technology realizes the higher encoding efficiency than H.265 and H.264, provides high-quality video, and reduces the cost of storage and transmission.
With advanced Wide Dynamic Range (WDR) technology, Dahua network camera provides clear details in the environment of strong brightness contrast. The bright and dark area can get clear video even in high brightness environment or with backlight shadow.
Dahua Starlight technology mainly applies to the environment of low illuminance, and it can provide clear colorful video. Even in the environment of ultra-low illuminance, the technology can guarantee the good image effect.

  • 4MP, 1/3” CMOS image sensor, low illuminance, high image definition
  • Outputs max. 4MP (2688 × 1520) @20 fps,and supports 2560 × 1440 (2560 × 1440) @25/30 fps
  • H.265 codec, high compression rate, ultra-low bit rate
  • Built-in IR LED, max. IR distance: 30 m
  • RoI, SMART H.264+/H.265+, flexible coding, applicable to various bandwidth and storage environments
  • Rotation mode, WDR, 3D DNR, HLC, BLC, digital watermarking, applicable to various monitoring scenes
  • Intelligent detection: Intrusion, tripwire
  • Abnormality detection: Motion detection, video tampering, audio detection, no SD card, SD card full, SD card error, network disconnection, IP conflict, illegal access, voltage detection
  • Alarm: 1 in, 1 out; audio: 1 in, 1 out; built-in Mic; supports max. 256 GB Micro SD card
  • 12V DC/PoE power supply
  • IP67, IK10 protection

dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - icon

With advanced video algorithm, Dahua IVS technology supports intelligent functions, such as tripwire and intrusion.
Protection (IP67, IK10, wide voltage)
IP67: The camera passes a series of strict test on dust and soak. It has dust-proof function, and the enclosure can works normal after soaking in 1 m deep water for 30 minutes.
IK10: The enclosure can stand the punch more than 5 times from a 5 kg hammer falling from a height of 40 cm (Impact energy is 20J).
Wide voltage: The camera allows ±30% input voltage tolerance (wide voltage range), and it is widely applied to outdoor environment with instable voltage.

Technical Specification


Image Sensor 1/3”4Megapixel progressive CMOS
Max. Resolution 2688 (H) × 1520 (V)
ROM 128 MB
RAM 128 MB
Scanning System Progressive
Electronic Shutter Speed Auto/Manual 1/3 s–1/100,000 s
S/N Ratio > 56 dB
Minimum Illumination 0.008 Lux @ F1.6
Illumination Distance 30 m (98.4 ft)
Illuminator On/Off Control Auto/Manual
Illuminator Number 8 (IR LED)
Pan/Tilt/Rotation Range Pan: –30°–30°
Tilt: 0°–80°
Rotation: 0°–360°


Lens Type Fixed-focal
Mount Type M12
Focal Length 2.8 mm
3.6 mm
Max. Aperture F1.6 F1.6
Field of View 2.8 mm:Horizontal 102° × Vertical 55° × Diagonal 121°
3.6 mm:Horizontal 84° × Vertical 45° × Diagonal 100
Iris Type Fixed
Close Focus Distance 2.8 mm: 0.9 m (3.0 ft)
3.6 mm: 1.6 m (5.2 ft)
DORI Distance Lens Detect Observe Recognize Identify
2.8mm 56.0 m
(183.7 ft)
22.4 m
(73.5 ft)
11.2 m
(36.7 ft)
5.6 m
(8.5 ft)
3.6mm 80.0 m
(262.5 ft)
32.0 m
(105.0 ft)
16.0 m
(52.5 ft)
8.0 m
(26.2 ft)

Smart Event


Video Compression

H.265; H.264; H.264B; MJPEG (only supported by sub stream)
Smart Codec Smart H.265+/ Smart H.264+
Video Frame Rate Main stream: 2688 × 1520 (1 fps-20 fps)
2560 × 1440 (1 fps-25/30 fps)
Sub stream:
704 × 576 (1 fps-25 fps)
704 × 480 (1 fps-30 fps)
Stream Capability 2 streams
Resolution 2688 × 1520 (2688 × 1520); 2560 × 1440 (2560 × 1440);
2304 × 1296 (2304 × 1296); 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
WDR 120 dB
White Balance Auto/natural/street lamp/outdoor/manual/regional custom
Gain Control Auto/Manual
Noise Reduction 3D DNR
Motion Detection OFF/ON (4 areas, rectangular)
Region of Interest (RoI) Yes (4 areas)
Smart Illumination Yes
Image Rotation 0°/90°/180°/270° (Support 90°/270° with
2688 × 1520 resolution and lower)
Mirror Yes
Privacy Masking 4 areas


Built-in MIC Yes
Audio Compression G.711a; G.711Mu; G.726; AAC


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


Network RJ-45 (10/100 Base-T)
SDK and API Yes


Interoperability ONVIF (Profile S/Profile G/Profile T); CGI; Milestone;
Genetec; P2P
User/Host 20

Edge Storage

Dahua Cloud; FTP; SFTP; Micro SD card (support max. 256 G); NAS
Browser IE Chrome Firefox
Management Software Smart PSS, DSS, DMSS
Mobile Phone IOS; Android


Certifications CE-LVD: EN60950-1
CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU
FCC: 47 CFR FCC Part 15, Subpart B
UL/CUL: UL60950-1 CAN/CSA C22.2 No.60950-1-07


Audio Input 1 channel (RCA port)
Audio Output 1 channel (RCA port)
Alarm Input 1 channel in: 5mA 3V–5V DC
Alarm Output 1 channel out: 300mA 12V DC


Power Supply 12V DC/PoE
Power Consumption <5.4W


Operating Temperature –40°C to +60°C (–40°F to +140°F)/less than ≤ 95% RH
Storage Temperature –40°C to +60°C (–40°F to +140°F)
Ingress Protection IP67; IK10


Casing Metal
Dimensions 55 mm × Φ108.9 mm (2.2″ × Φ4.3″)
Net Weight 0.38 kg (0.8 lb)
Gross Weight 0.52 kg (1.1 lb)

Ordering Information

Type Part Number Description
4MP Camera DH-IPC-HDBW2431FP-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera,PAL
DH-IPC-HDBW2431FN-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera,NTSC
PFA139 Junction Box
PFB204W Wall Mount
PFA152-E Pole Mount
PFB220C Mount Adapter
PFA106 Celling Mount
PFM321D 12V DC 1A Power Adapter
LR1002-1ET/1EC Single-port Long Reach Ethernet over Coax Extender
PFM900-E Integrated Mount Tester
PFM114 TLC SD Card



dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Optiona

Junction Mount Wall Mount
PFA139 PFB204W
dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Junction Mount dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Wall Mount
Pole Mount Celling Mount
PFB204W+PFA152-E PFB220C+PFA106
dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Wall Mount1 dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Celling Mount

Dimensions (mm[inch])

dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera - Dimensions

dahua logoRev 001.001
© 2020 Dahua . All rights reserved. Design and specifications are subject to change without notice.
Pictures in the document are for reference only, and the actual product shall prevail.

Documents / Resources

dahua DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera [pdf] Owner's Manual
DH-IPC-HDBW2431F-AS-S2, 4MP Lite IR Fixed-focal Dome Network Camera, DH-IPC-HDBW2431F-AS-S2 4MP Lite IR Fixed-focal Dome Network Camera, Fixed-focal Dome Network Camera, Dome Network Camera, Network Camera, Camera


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