Dahua NVR5232-EI 32-channel IP network video recorder with AI
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Choose countryThe Dahua NVR5232-EI is a network video recorder for connecting up to 32 IP cameras and managing recordings. It supports both recorder-based and camera-based AI, with channel limits that vary by analytical function and processing method.
Analytics and recording review
- Perimeter protection: recorder-based AI supports 4 channels with 10 IVS rules per channel.
- SMD Plus: secondary human and motor vehicle filtering on 8 channels reduces false alarms caused by leaves, rain and lighting changes.
- Face analysis: face detection, recognition and face image databases are supported.
- Playback: review up to 16 channels, with event, tag and smart playback for face and motion detection.
Display and integration
HDMI and VGA can output different video sources, and 4K display is supported. ONVIF and listed third-party camera support help assess integration with an existing system. Operation is available through a web interface or local GUI.
Bandwidth, storage and installation
Incoming, recording and outgoing bandwidth are each 384 Mbps with AI disabled, or 200 Mbps with AI enabled. There are 2 SATA ports with stated HDD support up to 16 TB; maximum HDD capacity varies with ambient temperature. The recorder supports rack or desktop installation and requires 12 V DC, 4 A power.
| Main processor | Industrial-grade processor |
|---|---|
| Operating system | Embedded Linux |
| Operating interface | Web, local GUI |
| Recorder-based AI | Face detection; face recognition; perimeter protection; SMD Plus |
| Camera-based AI | Face detection; face recognition; video metadata for humans, motor and non-motor vehicles; perimeter protection; SMD Plus; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map |
| Recorder-based perimeter protection | 4 channels, 10 IVS rules per channel |
| Camera-based perimeter protection | 16 channels |
| Recorder-based face detection | 2 channels, up to 12 face images/s per channel |
| Camera-based face detection | 16 channels |
| Face database capacity | Up to 20 databases with 20 000 images; total capacity 2.5 G. Each image can include name, gender, birthday, address, credential type and number, countries and regions, and state. |
| Recorder-based face recognition | 16-channel camera FD + recorder FR: image stream 16 face images/s; 2-channel recorder FD + recorder FR: video stream 12 face images/s |
| Camera-based face recognition | 16 channels |
| Recorder-based SMD Plus | 8 channels; secondary human and motor vehicle filtering reduces false alarms caused by leaves, rain and lighting changes |
| Camera-based SMD Plus | 16 channels |
| Camera-based video metadata | 8 channels |
| Camera-based ANPR | 8 channels |
| Licence plate database capacity | Up to 20 000 plate numbers; blocklist and allowlist |
| IP camera access channels | 32 |
| Network bandwidth | AI disabled: 384 Mbps incoming, 384 Mbps recording, 384 Mbps outgoing; AI enabled: 200 Mbps incoming, 200 Mbps recording, 200 Mbps outgoing |
| Resolution | 32 MP; 24 MP; 16 MP; 12 MP; 8 MP; 5 MP; 4 MP; 1080p; 720p; D1; CIF; QCIF |
| Decoding capability | AI off (channels×MP@fps): 2×32@20; 2×24@20; 4×16@30; 5×12@30; 8×8@30; 12×5@30; 16×4@30; 32×1080p@30. AI on: 1×32@20; 1×24@20; 2×16@30; 4×12@30; 4×8@30; 8×5@30; 12×4@30; 24×1080p@30 |
| Video output | 1 VGA, 1 HDMI; different video source output for HDMI and VGA; 4K display support |
| Multi-screen display | Main screen: 1/4/8/9/16/25/36; sub screen: 1/4/8/9/16 |
| Third-party camera access | ONVIF; Panasonic; Sony; Axis; Arecont; Pelco; Canon; Samsung |
| Video compression | Smart H.265+; H.265; Smart H.264+; H.264; MJPEG |
| Audio compression | G.711a; G.711u; PCM; G726 |
| Mobile access | iOS; Android |
| Interoperability | ONVIF 21.12 (Profile T; Profile S; Profile G); CGI; SDK |
| Multi-channel playback | Up to 16 channels |
| Recording modes | General; motion detection; intelligent; alarm; POS |
| Backup method | USB device and network |
| Playback modes | Instant, general, event, tag and smart playback (face and motion detection) |
| Audio input | 1-channel RCA |
| Audio output | 1-channel RCA |
| Alarm input | 4 channels |
| Alarm output | 2 channels |
| HDD interface | 2 SATA ports, up to 16 TB; maximum HDD capacity varies with ambient temperature |
| RS-232 | 1 |
| RS-485 | 1 |
| USB | 2: 1 front USB 2.0 port, 1 rear USB 3.0 port |
| Network port | 1 RJ-45 Ethernet, 10/100/1000 Mbps |
| Power supply | 12 V DC, 4 A |
| Net weight | 1.57 kg (3.46 lb) |
| Gross weight | 2.73 kg (6.02 lb) |
| Product dimensions | 375.0 × 284.4 × 56.0 mm (14.76 × 11.20 × 2.20 inches), W × D × H |
| Packaging dimensions | 433.0 × 141.0 × 366.0 mm (17.04 × 5.55 × 14.41 inches), W × D × H |
| Operating temperature | –10 to +55 °C (14 to +131 °F) |
| Storage temperature | –20 to +60 °C (–4 to +140 °F) |
| Operating humidity | 10–93 % RH |
| Installation | Rack or desktop |
| EAN | 6937552405141 |
|---|
Are all AI features available across all 32 channels?
No. Channel capacity depends on the function and processing method. For example, recorder-based perimeter protection supports 4 channels and recorder-based SMD Plus supports 8. Some analytics are provided by the cameras.
Does enabling AI affect performance?
Yes. Incoming, recording and outgoing bandwidth each change from 384 Mbps to 200 Mbps. Decoding capacity also changes: for example, 1080p at 30 fps is supported on 32 channels with AI disabled or 24 channels with AI enabled.
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