1. Einleitung
This manual provides detailed instructions for the installation, operation, and maintenance of the Dahua NVR4432-EI 32-Channel 1.5U 4HDDs WizSense Network Video Recorder. This NVR is designed for advanced security surveillance, featuring AI capabilities such as face detection, face recognition, perimeter protection, and ANPR.
Please note that this NVR does not have built-in POE ports. It requires an external POE switch for connecting POE cameras.
Video: Overview of Dahua Security Products (NVR4432-EI may be shown)

Image: Dahua NVR4432-EI front view highlighting 32 channels and WizSense AI features like Face Detection, Face Recognition, Perimeter Protection, SMD Plus, Search by Image, Heat Map, ANPR, People Counting, Quick Pick, and IVS.
2. Sicherheitshinweise
- Lesen Sie vor Installation und Betrieb alle Anweisungen sorgfältig durch.
- Ensure proper power supply (100–240 VAC, 50-60Hz) to prevent damage.
- Setzen Sie das Gerät keiner Feuchtigkeit oder extremen Temperaturen aus.
- Verwenden Sie nur vom Hersteller angegebenes Zubehör.
- Überlassen Sie sämtliche Wartungsarbeiten qualifiziertem Servicepersonal.
3. Packungsinhalt
Verify that all components are present and in good condition. If any items are missing or damaged, contact your supplier immediately.
- Dahua NVR4432-EI Network Video Recorder Unit
- Netzteil/Kabel
- USB-Maus
- SATA Cables (for HDD installation)
- Mounting Screws (for HDD installation)
- Kurzanleitung

Image: Packaging box for the Dahua NVR4432-EI Network Video Recorder.
4. Hardware-Overview
4.1 Frontplatte
The front panel typically includes status indicators and a USB port for peripheral connections.

Bild: Vorderseite view of the Dahua NVR4432-EI, showing the USB 2.0 port and status indicators.
4.2 Rückseite
The rear panel provides all necessary ports for power, network, video output, audio, and alarm connections.

Image: Detailed diagram of the NVR4432-EI rear panel with numbered ports and their descriptions.
| NEIN. | Anschluss/Komponente | Beschreibung |
|---|---|---|
| 1 | Netzschalter | Turns the NVR on or off. |
| 2 | Leistungsaufnahme | Connects to the power adapter (100–240 VAC). |
| 3 | Netzwerkports | RJ45 10/100/1000 Mbps Ethernet ports for network connection. |
| 4 | MIC OUT, RCA Connector | Audio output port (1-channel RCA). |
| 5 | MIC IN, RCA Connector | Audio input port (1-channel RCA). |
| 6 | RS-232-Anschluss | Serial port for debugging or external device control. |
| 7 | VGA-Anschluss | Video output to a VGA monitor. |
| 8 | HDMI-Anschluss | Video output to an HDMI-compatible monitor. |
| 9 | USB-Anschluss | Rear USB 3.0 port for peripherals or backup. |
| 10 | Alarm ein / aus | Alarm input (16 channels) and output (4 channels) terminals. |
5. Einrichtungsanweisungen
5.1 Festplatteninstallation (optional)
The NVR supports up to 4 SATA HDDs, with a maximum capacity of 16 TB per port. If your NVR did not come with pre-installed HDDs, follow these steps:
- Schalten Sie den NVR aus und trennen Sie alle Kabel.
- Remove the top cover of the NVR by unscrewing the retaining screws.
- Verbinden Sie die SATA-Daten- und Stromkabel vom NVR mit der Festplatte.
- Befestigen Sie die Festplatte mit den mitgelieferten Schrauben am NVR-Gehäuse.
- Repeat for additional HDDs if necessary.
- Bringen Sie die obere Abdeckung wieder an und befestigen Sie sie mit Schrauben.

Bild: Example of a 3.5'' SATA hard drive suitable for NVRs.
5.2 Erstverbindung
- Schließen Sie einen Monitor an den HDMI- oder VGA-Anschluss des NVR an.
- Connect a USB mouse to one of the NVR's USB ports.
- Connect the NVR's network port (3) to your network router or a POE switch using an Ethernet cable.
- Connect the power adapter to the NVR's power input (2) and then to a power outlet.
- Press the power switch (1) to turn on the NVR.
5.3 Network Camera Connection
Since this NVR does not have POE ports, connect your IP cameras to a separate POE switch, and then connect the POE switch to the NVR's network port.
- Ensure all IP cameras are powered via a POE switch or individual power adapters and are connected to the same network as the NVR.
- Follow the on-screen wizard for initial setup, including setting up an administrator password.
- Navigate to the "Camera" or "Device Search" section in the NVR's GUI to discover and add your network cameras.
- Configure camera settings such as IP address, username, and password as prompted.
6. Bedienungsanleitung
6.1 Live View
After adding cameras, the NVR will display live video feeds. You can switch between different display layouts (e.g., 1/4/8/9/16/25/36 channels) using the GUI.
6.2 Aufnahme
The NVR supports various recording modes: General, Motion Detection, Intelligent, and Alarm. Configure recording schedules and settings via the "Storage" or "Record" menu.
- Kontinuierliche Aufnahme: Records constantly.
- Aufnahme mit Bewegungserkennung: Records only when motion is detected by the camera.
- Alarmaufzeichnung: Records when an external alarm input is triggered.
- Intelligent Recording: Records based on AI events (e.g., face detection, perimeter intrusion).
6.3 Wiedergabe
Auf aufgezeichnetes Foo zugreifentage through the "Playback" menu. The NVR supports Instant Playback, General Playback, Event Playback, Tag Playback, and Smart Playback.
- Use the timeline to select the desired time and date for playback.
- Utilize smart search features to quickly find events based on motion, alarm, or AI events.
6.4 AI Features (WizSense)
The NVR4432-EI integrates Dahua's WizSense AI technology, offering advanced analytics:
- Face Detection & Recognition: Detects faces and can recognize individuals from a database (up to 10 databases, 200,000 images).
- Perimeterschutz: Filters out false alarms caused by environmental factors (e.g., leaves, rain) for human and vehicle intrusion detection. Supports 2 channels by NVR (10 IVS rules each) and 8 channels by camera.
- SMD Plus (Smart Motion Detection Plus): Differentiates between human and vehicle movement from other objects, significantly reducing false alarms. Supports 4 channels by NVR and 8 channels by camera.
- ANPR (Automatic Number Plate Recognition): Detects and recognizes vehicle license plates. Supports 4 channels by camera and can manage a database of up to 20,000 plate numbers with blocklist/allowlist functionality.
- Personenzählung: Monitors and counts people entering and exiting a defined area.
- Heatmap: Visualizes areas of high activity.
These features can be configured in the NVR's AI menu, with performance varying based on whether the AI processing is done by the NVR or the connected cameras.
6.5 Mobile Phone Access
The NVR supports remote access via mobile applications for iOS and Android devices. Download the official Dahua mobile app (e.g., DMSS) from your device's app store, add the NVR using its P2P ID or IP address, and configure settings for remote viewing and notifications.
7. Wartung
- Regelmäßige Reinigung: Keep the NVR free from dust. Use a soft, dry cloth for cleaning. Ensure ventilation openings are clear.
- Firmware-Updates: Überprüfen Sie regelmäßig die offizielle Dahua-Website. website for firmware updates to ensure optimal performance and security. Follow the provided instructions carefully for updates.
- Datensicherung: Regularly back up important recordings to an external USB drive or network storage to prevent data loss.
- Passwortverwaltung: Use strong, unique passwords for the NVR and connected cameras. Change passwords periodically.
- Umgebungsbedingungen: Ensure the NVR operates within the specified temperature (–10 °C to +55 °C) and humidity (10%–93% RH) ranges.
8. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| NVR does not power on. | No power, faulty power adapter, or power switch off. | Check power connections, ensure power switch is on, try a different power outlet. |
| Kein Videosignal am Monitor. | Incorrect cable connection, monitor input not selected, or resolution mismatch. | Verify HDMI/VGA cable connections, select correct input on monitor, try a different monitor or cable. |
| Cameras not showing in live view. | Network issue, incorrect camera IP/credentials, or cameras not powered. | Check network cables, ensure cameras are powered by POE switch, verify camera IP addresses and login details in NVR settings. Ensure POE switch is connected to NVR. |
| Hard drive error/no recording. | HDD not installed correctly, faulty HDD, or not formatted. | Check HDD connections, format HDD via NVR menu, replace faulty HDD if necessary. |
9. Spezifikationen
| Kategorie | Besonderheit | Detail |
|---|---|---|
| System | Hauptprozessor | Prozessor in Industriequalität |
| Betriebssystem | Embedded Linux | |
| Bedienoberfläche | Web; Lokale GUI | |
| KI-Fähigkeiten | KI von Recorder | Gesichtserkennung; Gesichtserkennung; Perimeterschutz; SMD Plus |
| KI per Kamera | Gesichtserkennung; Gesichtserkennung; Perimeterschutz; SMD Plus; ANPR; Personenzählung; Stereoanalyse; Heatmap | |
| Perimeterschutz | AI by Recorder (Channels) | 2 Kanäle, 10 IVS-Regeln für jeden Kanal |
| AI by Camera (Channels) | 8 Kanäle | |
| Gesichtserkennung | Gesichtsattribute | Geschlecht; Altersgruppe; Gläser; Ausdrücke; Schutzmaske; Bart |
| AI by Recorder (Channels) | 1 Kanal (bis zu 12 Gesichtsbilder/s pro Kanal) | |
| AI by Camera (Channels) | 8 Kanäle | |
| Gesichtserkennung | Kapazität der Gesichtsdatenbank | Up to 10 face databases with 200,000 images (total capacity 2.5 G) |
| AI by Recorder (Channels) | 8-channel FD (by camera) + FR (by recorder), image stream: 12 face images/s; 1-channel FD (by recorder) + FR (by recorder), video stream: 12 face images/s | |
| AI by Camera (Channels) | 8 Kanäle | |
| SMD-Plus | by Recorder | 4 channels: Secondary filtering for human and motor vehicle |
| by Camera | 8 Kanäle | |
| ANPR | by Camera (Channels) | 4 Kanäle |
| License Plate Database Capacity | Up to 20,000 plate numbers; Blocklist and allowlist | |
| Audio und Video | Zugangskanal | 32 Kanäle |
| Netzwerkbandbreite | AI disabled: 256 Mbps (incoming/recording/outgoing); AI enabled: 180 Mbps (incoming/recording/outgoing) | |
| Auflösung | 16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 960p; 720p; D1; CIF | |
| Dekodierungsfähigkeit | AI disabled: 2-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 4-channel 8 MP@30 fps; 6-channel 5 MP@30 fps; 8-channel 4 MP@30 fps; 16-channel 1080p@30 fps. AI enabled: 1-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 3-channel 8 MP@30 fps; 4-channel 5 MP@30 fps; 6-channel 4 MP@30 fps; 12-channel 1080p@30 fps | |
| Videoausgang | 1 HDMI, 1 VGA. HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720. VGA: 1920 × 1080, 1280 × 1024, 1280 × 720. Simultaneous/heterogeneous video sources output for VGA and HDMI is configurable. | |
| Kompression | Videokomprimierung | Intelligentes H.265+; H.265; Intelligentes H.264+; H.264; MJPEG |
| Audiokomprimierung | G.711a; G.711u; PCM; G726 | |
| Videonorm | NTSC, PAL | |
| Netzwerk | Netzwerk-Protokoll | HTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; UDP; SMTP; NTP; DHCP; DNS; IP-Filter; PPPoE; DDNS; FTP; Alarmserver; IP-Suche (unterstützt Dahua IP-Kamera; DVR; NVS; usw.); P2P; automatische Registrierung |
| Handy-Zugang | iOS; Android | |
| Interoperabilität | ONVIF 22.06(Profile T; Profifile S; Profifile G); CGI; SDK | |
| Browser | Chrome; IE9 und höher; Firefox | |
| Aufnahme und Wiedergabe | Mehrkanal-Wiedergabe | Bis zu 16 Kanäle |
| Aufnahmemodus | Allgemein, Bewegungserkennung; intelligent; Alarm | |
| Sicherungsmethode | USB-Gerät und Netzwerk | |
| Wiedergabemodus | Sofortwiedergabe, allgemeine Wiedergabe, Ereigniswiedergabe, tag Wiedergabe, intelligente Wiedergabe | |
| Lagerung | HDD-Schnittstelle | 4 SATA ports, up to 16 TB. Max HDD capacity varies with environment temperature. |
| Häfen | Audioeingang | 1-Kanal-Cinch |
| Audioausgang | 1-Kanal-Cinch | |
| Alarmeingang | 16 Kanäle | |
| Alarmausgang | 4 Kanäle | |
| Allgemein | Stromversorgung | 100–240 V Wechselstrom, 50–60 Hz |
| Energieaufnahme | <10 W (ohne Festplatte) | |
| Produktabmessungen (B × T × H) | 440.0 mm × 415.6 mm x 76.0 mm (17.32" × 16.36" × 2.99") | |
| Betriebstemperatur | –10 °C bis +55 °C (14 °F bis +131 °F) | |
| Lagertemperatur | –20 °C bis +60 °C (–4 °F bis +140 °F) | |
| Luftfeuchtigkeit bei Betrieb | 10 %–93 % (RH) | |
| Zertifizierungen | CE, FCC |
10. Benutzertipps
- For optimal performance of AI features, ensure your connected cameras also support Dahua's WizSense technology.
- When installing HDDs, use surveillance-grade drives for better reliability and longevity.
- Regularly check the NVR's system logs for any anomaly alarms or errors to proactively address potential issues.
- If experiencing network connectivity issues, verify that your router's DHCP server is assigning IP addresses correctly or configure static IPs for the NVR and cameras.
- Consider using a UPS (Uninterruptible Power Supply) to protect your NVR from power fluctuations and outages, ensuring continuous recording.
11. Garantie und Support
This Dahua NVR is backed by a 3-year warranty. Lifetime technical support is also provided. For technical assistance, warranty claims, or further inquiries, please contact your authorized Dahua dealer or the seller.





