- dahua DHI-NVR5232-EI 32-channel IP DVR with AI features (face detection and recognition, perimeter protection, SMD PLus); supports cameras up to 32 MP.
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Dahua DHI-NVR5232-EI 32-channel 2×HDD 1U network video recorder
DHI-NVR5232-EI is a 32-channel IP network video recorder from Dahua's NVR5000-EI series, featuring built-in AI and deep learning functions. The device supports advanced video analytics, including face recognition, perimeter protection, SMD PLus, ANPR and AcuPick function.
- 32 IP channels with support for cameras up to 32 MP resolution.
- Max throughput: 384/384/384 Mbps (input/recording/output) with AI functions disabled.
- Max throughput: 200/200/200 Mbps (input/recording/output) with AI functions enabled.
- Built-in AI functions: face detection and recognition, perimeter protection, SMD PLus, video metadata, people counting, heat map, ANPR.
- 2 SATA disk bays, each disk up to 20 TB (depending on ambient temperature).
- HDMI (up to 3840×2160) and VGA video outputs with support for heterogeneous outputs.
AI description and features
The NVR5000-EI series provides high performance and advanced recording technology, offering high bandwidth for accessing and transmitting streams and high decoding performance for smooth video playback, according to the manufacturer's documentation. With built-in AI and deep learning algorithms, the DVR supports features such as precision face recognition, perimeter protection, SMD PLus, video metadata, crowd analysis, people counting, ANPR and heat maps, as well as the AcuPick function, which uses intelligence on the camera and DVR side to quickly find targets in large sets of footage.
Recording, alarm and interface capabilities
The DHI-NVR5232-EI DVR supports up to 32 IP input channels, various recording modes (general, motion detection, smart, alarm, POS) and playback of up to 16 channels simultaneously, according to the manufacturer's documentation. The device provides a wide set of I/O, including 4 alarm inputs, 2 alarm outputs, 1 RCA audio input, 1 RCA audio output, 2 USB ports (1×USB 2.0 on the front, 1×USB 3.0 on the back), RS-232 port, RS-485 port, 1 RJ-45 10/100/1000 Mbps network port, and supports various types of alarms (general, anomaly and smart) with the ability to be associated with recording, snapshots, alarm outputs, control, audio, audible, logs and email.
Specifications
| Category | Parameter | Value |
|---|---|---|
| Model | Model | DHI-NVR5232-EI |
| Description | Manufacturer's description | Dahua 32CH 2HDD 1U Network Video Recorder |
| System | Main processor | Industrial-grade processor (industrial-grade processor) |
| System | Operating system | Embedded Linux |
| System | Operating interface | Web, local GUI |
| AI - general | AI by Recorder - functions | Face detection; face recognition; perimeter protection; SMD PLus |
| AI - general | AI by Camera - functions | Face detection; face recognition; video metadata (people, motor and non-motor vehicles); perimeter protection; SMD PLus; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map |
| AcuPick | AcuPick (AI by Camera + Recorder) | Max 32 channels, 1 combined event per channel/sec. |
| Perimeter protection | Number of AI by Recorder channels | 4 channels, up to 10 IVS rules per channel |
| Perimeter protection | Number of AI by Camera channels | All channels (16 targets/s) |
| Face detection | Face attributes | Gender; age group; glasses; expressions; mask; chin |
| Face detection | Detection performance (AI by Recorder) | 2 channels (up to 12 face images/s per channel) |
| Face detection | Detection performance (AI by Camera) | 16 channels |
| Face Recognition | Face database capacity | Up to 20 face databases from 20,000 images, total capacity 2.5 GB; name, gender, date of birth, address, document type, document number, country/region and state can be added to each image |
| Face recognition | Performance (AI by Recorder) | 1) 16 channels FD (camera side) + FR (DVR side), video stream: 16 face images/s; 2) 2 channels FD (DVR side) + FR (DVR side), video stream: 12 face images/s |
| Face recognition | Performance (AI by Camera) | 16 channels |
| SMD PLus | SMD PLus by Recorder | 8 channels; secondary filtering for people and motor vehicles, reduction of false alarms caused by foliage, rain and light changes |
| SMD PLus | SMD PLus by Camera | All channels (32 targets/s) |
| Video metadata | Performance (AI by Camera) | 8 channels |
| Metadata - people | Attributes | Top garment color, top garment type, bottom garment color, bottom garment type, headwear, bag, age, gender, umbrella |
| Metadata - motor vehicles | Attributes | License plate, plate color, body color, vehicle model, vehicle logo, talking on the phone, seat belt, vehicle interior, vehicle registration location |
| Metadata - non-motor vehicles | Attributes | Vehicle model, vehicle color, number of people, helmet |
| ANPR | Number of channels of ANPR by Camera | All channels (8 targets/s) |
| ANPR | Plate database capacity | Up to 20,000 array numbers; blocklists and allowlists |
| Audio/Video | Number of access channels | 32 channels |
| Bandwidth | Bandwidth (AI disabled) | 384 Mbps input, 384 Mbps recording, 384 Mbps output |
| Bandwidth | Bandwidth (AI enabled) | 200 Mbps input, 200 Mbps recording, 200 Mbps output |
| Video | Supported camera resolutions | 32 MP; 24 MP; 16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 720p; 960p; D1; CIF; QCIF |
| Decoding | Decoding performance (AI disabled) | 2× 32 MP@25 fps; 2× 24 MP@25 fps; 4× 16 MP@30 fps; 5× 12 MP@30 fps; 8× 8 MP@30 fps; 10× 6 MP@30 fps; 12× 5 MP@30 fps; 16× 4 MP@30 fps; 32× 1080p@30 fps |
| Decoding | Decoding performance (AI enabled) | 1× 32 MP@25 fps; 1× 24 MP@25 fps; 2× 16 MP@30 fps; 4× 12 MP@30 fps; 6× 8 MP@30 fps; 8× 6 MP@30 fps; 8× 5 MP@30 fps; 12× 4 MP@30 fps; 24× 1080p@30 fps |
| Video outputs | VGA | 1920×1080; 1280×1024; 1280×720 |
| Video outputs | HDMI | 3840×2160; 1920×1080; 1280×1024; 1280×720 |
| Video outputs | Display mode | Main screen: 1/4/8/9/16/25/36; secondary screen: 1/4/8/9/16 |
| Video outputs | Heterogeneous output | Heterogeneous video sources for HDMI and VGA |
| Compatibility | Third-party camera access | ONVIF; Panasonic; Sony; Axis; Arecont; Pelco; Canon; Hanwha |
| Compression | Video compression | Smart H.265+; H.265; Smart H.264+; H.264; MJPEG |
| Compression | Audio compression | G.711a; G.711u; PCM; G726 |
| Network | Network protocols | HTTP; HTTPS; TCP/IP; IPv4; UDP; NTP; DHCP; DNS; SMTP; UPnP; DDNS; Alarm Server; IP Search (support for Dahua IP cameras, DVR, NVS, etc.); Multicast; P2P; Auto Registration; iSCSI |
| Networking | Mobile access | iOS; Android |
| Networking | Interoperability | ONVIF 23.12 (Profile T; Profile S; Profile G); CGI; SDK |
| Networking | Browsers | Chrome; IE; Safari; Edge; Firefox |
| Recording/playback | Multi-channel playback | Up to 16 channels |
| Recording/Playback | Recording modes | General; motion detection; smart; alarm; POS |
| Recording/Playback | Backup methods | USB device and network |
| Recording/Playback | Playback modes | Instant playback; general; event; by tag (tag); smart (face and motion detection) |
| Storage | Disk grouping | Yes (Disk Group) |
| Alarms - general | General alarms | Motion detection; local alarm; alarm module; external camera alarm; network alarm; scene change; PIR alarm; thermal alarm |
| Alarms - anomalies | Alarms anomalies | Offline camera; storage error; full disk; IP conflict; MAC conflict; login lock; fan malfunction; cyber security exception |
| Alarms - smart | Smart alarms | Face detection; perimeter protection; face recognition; video metadata (people, motor and non-motor vehicles); SMD PLus; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map |
| Alarms | Alarm links | Recording; shutter (panoramic); local alarm output; external IPC alarm output; access controller; audio; buzzer; log; preset; e-mail |
| Ports | Audio input | 1 RCA channel |
| Ports | Audio output | 1 RCA channel |
| Ports | Alarm inputs | 4 channels |
| Ports | Alarm outputs | 2 channels |
| Ports | Disk interface | 2 SATA ports; each drive up to 20 TB (limit dependent on ambient temperature) |
| Ports | RS-232 | 1 |
| Ports | RS-485 | 1 |
| Ports | USB | 2 (1 front USB 2.0 port, 1 rear USB 3.0 port) |
| Ports | HDMI | 1 |
| Ports | VGA | 1 |
| Ports | Network port | 1 (10/100/1000 Mbps, Ethernet, RJ-45) |
| Power supply | Power supply | 12 VDC, 4 A |
| Power supply | Power consumption | Total power consumption of NVR ≤ 10 W (without HDD) |
| Dimensions and weight | Net weight | 1.57 kg (3.46 lb) |
| Dimensions and weight | Gross weight | 2.73 kg (6.02 lb) |
| Dimensions and weight | Product dimensions (S×G×W) | 375.0 mm × 284.4 mm × 56.0 mm (14.76" × 11.20" × 2.20") |
| Dimensions and weight | Package dimensions (S×G×W) | 433.0 mm × 141.0 mm × 366.0 mm (17.04" × 5.55" × 14.41") |
| Operating environment | Operating temperature | -10 °C to +55 °C (14 °F to +131 °F) |
| Operating environment | Storage temperature | -20 °C to +60 °C (-4 °F to +140 °F) |
| Operating environment | Operating humidity | 10%-93% RH, non-condensing |
| Installation | Mounting method | Rack or desktop (rack or desktop) |
| Certifications | FCC | 47 CFR FCC Part 15, Subpart B, Class A |
| Certifications | CE-EMC | EN 55032:2015+A1:2020; EN IEC 61000-3-2:2019+A1:2021; EN 61000-3-3:2013+A1:2019+A2:2021; EN 55035:2017+A11:2020; EN 50130-4:2011+A1:2014 |
| Certifications | CE-LVD | EN 62368-1:2014 |
Technical data source:manufacturer's documentation DAHUA datasheet of model DHI-NVR5232-EI Dokumentacja producenta
FAQ - frequently asked questions
- How many channels does the DHI-NVR5232-EI DVR support?
The DHI-NVR5232-EI DVR supports 32 IP input channels. - What is the maximum resolution of supported IP cameras?
The DVR supports IP cameras with up to 32 MP resolution. - What AI functions are available on the DVR side (AI by Recorder)?
The following functions are available on the DVR side: face detection, face recognition, perimeter protection, and SMD PLus. - What AI functions are supported on the camera side (AI by Camera)?
The following functions are supported on the camera side: face detection, face recognition, video metadata, perimeter protection, SMD PLus, stereo analysis, crowd distribution, people counting, ANPR, vehicle density, and heat map. - How many channels can use the AcuPick function?
The AcuPick function is supported on a maximum of 32 channels, with one combined event per channel per second. - How many IVS rules can be configured per channel for AI by Recorder perimeter protection?
Up to 10 IVS rules per 4 channels can be configured for AI by Recorder perimeter protection. - What is the capacity of the face database on the recorder?
The recorder supports up to 20 face databases with a total of 20,000 face images and a total capacity of 2.5 GB. - What information can be assigned to a single face image in the database?
Name, gender, date of birth, address, document type, document number, country or region, and state can be assigned to a face image. - What is the maximum throughput with AI functions disabled?
With AI functions disabled, the maximum throughput is 384 Mbps for input, 384 Mbps for recording, and 384 Mbps for output. - What is the maximum throughput with AI functions enabled?
With AI functions enabled, the maximum throughput is 200 Mbps for input, 200 Mbps for recording, and 200 Mbps for output. - How many hard drives can be installed in the DVR and what capacity?
The DVR has 2 SATA ports and supports up to 2 hard drives, each with a capacity of up to 20 TB, with the limit depending on the ambient temperature. - What video connectors are available on the device?
The device has one VGA output and one HDMI output. - What output resolutions does the HDMI port support?
The HDMI port supports resolutions of 3840×2160, 1920×1080, 1280×1024 and 1280×720. - What recording modes are available on the DVR?
The available recording modes are: general, motion detection, smart, alarm, and POS. - What are the playback capabilities of the recordings?
The DVR supports playback of up to 16 channels simultaneously and playback modes: instant, general, event, by tag and smart (face and motion detection). - What types of alarms does the DHI-NVR5232-EI support?
The device supports general alarms, anomaly alarms (e.g., offline camera, memory error, IP conflict) and intelligent alarms related to AI functions. - What are the alarm ports available on the DVR?
The DVR has 4 alarm inputs and 2 alarm outputs. - In what temperature range can the DVR operate?
The operating temperature range is -10 °C to +55 °C. - What standards and certifications does the device meet?
The device complies with FCC 47 CFR Part 15 Subpart B Class A, CE-EMC (EN 55032, EN IEC 61000-3-2, EN 61000-3-3, EN 55035, EN 50130-4) and CE-LVD EN 62368-1. - What network interfaces and protocols are supported?
The DVR has an RJ-45 10/100/1000 Mbps port and supports protocols such as HTTP, HTTPS, TCP/IP, IPv4, UDP, NTP, DHCP, DNS, SMTP, UPnP, DDNS, Alarm Server, IP Search, Multicast, P2P, Auto Registration and iSCSI.
The DHI-NVR5232-EI DVR is designed for IP surveillance systems requiring up to 32 channels, AI functions and high bandwidth. The device combines advanced video analytics with flexible interfaces and support for multiple network standards, according to the manufacturer's documentation.






