Dahua 32 Channels NVR4232-EI

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View or Download NVR4232-EI DataSheet
Dahua NVR4232-EI
32CH 1U 2HDDs WizSense Network Video Recorder

> Smart H.265+/H.265/Smart H.264+/H.264/MJPEG decoding format
> Access, storage or forwarding at 256 Mbps (180 Mbps when AI function enabled)
> Max. decoding capability: 16 × 1080p@30 fps. Supports adaptive decoding
> AI by NVR: 1-channel face detection and recognition; 2-channel perimeter protection; up to 10 face databases and 20,000 face images; 4-channel SMD Plus
> AI by Camera: Face detection and recognition, perimeter protection; SMD Plus; people counting; stereo analysis; heat map
> Connected to the third-party network cameras
> Security baseline 2.3


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System
Main ProcessorIndustrial-grade processor
Operating SystemEmbedded Linux
Operating InterfaceWeb, Local GUI
AI
AI by RecorderFace detection, face recognition, perimeter protection, and SMD Plus;
AI by CameraFace detection; face recognition; perimeter protection; SMD Plus; ANPR; people counting;
stereo analysis; heat map
Perimeter Protection
Perimeter Performance AI by Recorder (Number of Channels)2 channels, 10 IVS rules for each channel
Perimeter Performance of AI by Camera (Number of Channels)All channels (8 targets/s)
Face Detection
Face AttributesGender; age group; glasses; expressions; face mask; beard
Face Detection Performance of AI by Recorder (Number of Channels)1 channel (up to 12 face images/s each channel)
Face Detection Performance of AI by Camera (Number of Channels)All channels (8 targets/s)
Face Recognition
Face Database CapacityUp to 10 face databases with 20,000 images, with a total capacity of 2.5 G. Name, gender,
birthday, address, credential type, credential No., countries & regions and state can be
added to each face image.
Face Recognition Performance of AI by Recorder (Number of 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

Face Recognition Performance of AI by Camera (Number of Channels)All channels (8 targets/s)
SMD Plus
SMD Plus by Recorder4 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by
leaves, rain and lighting condition change
SMD Plus by CameraAll channels (16 targets/s)
Audio and Video
Access Channel32 channels
Network Bandwidth

AI disabled: 256 Mbps incoming, 256 Mbps recording and 256 Mbps outgoing

AI enabled: 180 Mbps incoming, 180 Mbps recording and 180 Mbps outgoing

Resolution16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 960p; 720p; D1; CIF
Decoding CapabilityAI disabled: 2-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 4-channel 8 MP@30 fps; 4-channel
6 MP@30 fps; 6-channel 5 MP@30 fps; 8-channel 4 MP@30 fps; 16-channel 1080p@30 fps; 32-channel
720p@30 fps

AI enabled: 1-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 3-channel 8 MP@30 fps; 3-channel 6
MP@30 fps; 4-channel 5 MP@30 fps; 6-channel 4 MP@30 fps; 12-channel 1080p@30 fps; 16-channel
720p@30 fps; 32-channel D1p@30 fps

Video Output

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.

Multi-screen Display

1st Screen: 1/4/8/9/16/25/36

2nd Screen: 1/4/8/9/16

Third-party Camera AccessPanasonic, Sony, Samsung, Axis, Pelco, Arecont, ONVIF, Canon
Compression Standard
Video CompressionSmart H.265+; H.265; Smart H.264+; H.264; MJPEG
Audio CompressionG.711a; G.711u; PCM; G726
Network
Network ProtocolHTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; UDP; SMTP; NTP; DHCP; DNS; IP Filter; PPPoE; DDNS;
FTP; Alarm Server; IP Search (Support Dahua IP camera; DVR; NVS; etc.); P2P; auto
register
Mobile Phone AccessiOS; Android
InteroperabilityONVIF 22.06(Profile T; Profile S; Profile G); CGI; SDK
BrowserChrome; IE9 and later; Firefox
Recording Playback
Multi-channel PlaybackUp to 16 channels
Record ModeGeneral, motion detection; intelligent; alarm
Backup MethodUSB device and network
Playback ModeInstant playback, general playback, event playback, tag playback, smart playback
Storage
Disk GroupYes
Alarm
General AlarmMotion detection; privacy masking; video loss; scene changing; PIR alarm; IPC external
alarm
Anomaly AlarmCamera disconnection; storage error; disk full; IP conflict; MAC conflict; login locked; and
cybersecurity exception
Intelligent AlarmFace detection; face recognition; perimeter protection; SMD Plus; people counting; stereo
analysis; heat map
Alarm LinkageRecord; snapshot; IPC external alarm output; audio; buzzer; log; preset; email
Port
Audio Input1-channel RCA
Audio Output1-channel RCA
Alarm Input4 channels
Alarm Output2 channels
Disk Interface2 SATA ports, up to 16 TB.The maximum HDD capacity varies with environment temperature.
USB2 (1 front USB 2.0 port, 1 rear USB 2.0 port)
HDMI1
VGA1
Network Port1 (10/100/1000 Mbps Ethernet port, RJ-45)
General
Power Supply12 VDC, 4 A
Power Consumption<10 W(without HDD)
Net Weight1.51 kg (3.33 lb)
Gross Weight2.76 kg (6.08 lb)
Product Dimensions375 mm × 284.3 mm × 53 mm (14.76" × 11.19" × 2.09") (W × L × H)
Packaging Dimensions433 mm × 141 mm × 366 mm (17.05" × 5.55" × 14.41") (W × L × H)
Operating Temperature–10 °C to +55 °C (14 °F to +131 °F)
Storage Temperature–20 °C to +60 °C (–4 °F to +140 °F)
Operating Humidity10%–93% (RH), non-condensing
InstallationRack or desktop
Certifications

FCC: 47 CFR FCC Part15, SubpartB, Class A

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

CE-LVD: EN 62368-1:2014

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