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Technical Specifications

Hikvision 4K 32-Channel IP Security System with 24 PoE, 8MP ColorVu Turret Camera and Two-Way Audio

Designed for large homes and commercial properties, this professional Hikvision solution combines the DS-7732NI-I4/24P 32-channel NVR with the DS-2CD2387G2-LSU/SL 8MP ColorVu turret camera. The recorder provides 24 built-in PoE ports, support for up to 32 IP cameras, 4K monitor output, and four HDD bays for scalable video storage.

The included camera model captures detailed 4K video in vivid color around the clock, while human and vehicle classification helps distinguish important activity from ordinary movement. Built-in two-way audio, a strobe warning light, and an audible alarm provide tools to see, hear, speak to, and actively warn people at the property.

This combination is especially useful when you need dependable continuous recording, intelligent event detection, remote viewing, and room to expand without replacing the recorder as your surveillance needs grow.

Key Features

  • 32-channel NVR: Connect and manage up to 32 IP cameras.
  • 24 built-in PoE ports: Transmit power and network data to compatible cameras through Ethernet cabling.
  • Up to 320 Mbps incoming bandwidth: Supports demanding multi-camera installations.
  • Up to 32MP camera input: The NVR accepts cameras up to 32MP when Ultra HD Resolution Mode is enabled.
  • 4K video output: HDMI 1 supports output up to 3840 × 2160 at 60 Hz.
  • 8MP ColorVu camera: Captures video at up to 3840 × 2160 resolution.
  • 24/7 color imaging: The F1.0 aperture and high-performance sensor capture vivid color in extremely low light.
  • Human and vehicle classification: Deep-learning technology helps focus supported alarms on people and vehicles.
  • 130 dB WDR: Improves visibility when bright and dark areas appear in the same scene.
  • Two-way audio: Built-in microphone and speaker support real-time communication.
  • Active deterrence: Integrated strobe light and audible warning can help warn intruders away.
  • Up to 30 m white-light range: Provides supplementary illumination for full-color nighttime video.
  • H.265+ compression: The NVR can reduce storage requirements by up to 75% compared with conventional H.264, according to the datasheet.
  • Four HDD bays: Supports up to four SATA hard drives with up to 10TB capacity per disk.
  • IP67 camera protection: Suitable for exposed indoor or outdoor installations.
  • Hik-Connect support: Enables convenient network management and remote access when properly configured.

NVR Identification

```
Manufacturer
Hikvision
Model
DS-7732NI-I4/24P
Product Type
32-channel Network Video Recorder with 24 PoE ports
```

NVR Video and Audio

```
IP Video Inputs
32 channels
Maximum Camera Input Resolution
Up to 32MP
Ultra HD Resolution Mode
Supports up to four 32MP or 24MP IP camera inputs when enabled
Incoming Bandwidth
320 Mbps
Outgoing Bandwidth
256 Mbps
HDMI 1 Output
3840 × 2160 at 60 Hz; 3840 × 2160 at 30 Hz; 1920 × 1080 at 60 Hz; 1600 × 1200 at 60 Hz; 1280 × 1024 at 60 Hz; 1280 × 720 at 60 Hz; 1024 × 768 at 60 Hz
HDMI 2 Output
1920 × 1080p at 60 Hz; 1280 × 1024 at 60 Hz; 1280 × 720 at 60 Hz; 1024 × 768 at 60 Hz
VGA Output
1920 × 1080 at 60 Hz; 1280 × 1024 at 60 Hz; 1280 × 720 at 60 Hz; 1024 × 768 at 60 Hz
Video Output Mode
HDMI 1/VGA simultaneous output; HDMI 2/VGA independent output
CVBS Output
1 channel, BNC, 1.0 Vp-p, 75 Ω; PAL: 704 × 576; NTSC: 704 × 480
Audio Output
1-channel RCA, linear, 1 KΩ
Two-Way Audio Input
1-channel RCA, 2.0 Vp-p, 1 KΩ, using the audio input
```

NVR Decoding and Recording

```
Decoding Formats
H.265+, H.265, H.264+, H.264 and MPEG4
Recording Resolutions
32MP, 24MP, 12MP, 8MP, 6MP, 5MP, 4MP, 3MP, 1080p, UXGA, 720p, VGA, 4CIF, DCIF, 2CIF, CIF and QCIF
Decoding Capacity
2 channels at 12MP/20 fps; 4 channels at 8MP/30 fps; 8 channels at 4MP/30 fps; or 16 channels at 1080p/30 fps
Synchronous Playback
16 channels
Dual-Stream Recording
Supported
Stream Types
Video; video and audio
Audio Compression
G.711ulaw, G.711alaw, G.722 and G.726
Compression Storage Benefit
H.265+ can reduce required storage space by up to 75%, according to the manufacturer
```

NVR Smart and Security Functions

```
Video Content Analytics
Supports multiple VCA events
Supported Camera Smart Functions
Motion detection, line crossing detection, intrusion detection, heat map, ANPR and people counting when supported by the connected camera
POS Functions
POS information overlay on live view and playback; POS-triggered recording and alarm
Secure Streaming
Stream transmission over TLS encryption
Verification
Double verification supported for playback and downloading
Smooth Streaming
Supported
Plug-In-Free Web Access
Supported
```

NVR Network and PoE

```
Remote Connections
Up to 128
Network Protocols
TCP/IP, DHCP, IPv4, IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP, HTTP and HTTPS
LAN Interface
1 × RJ45 10/100/1000 Mbps self-adaptive Ethernet interface
PoE Interfaces
24 × RJ45 10/100 Mbps self-adaptive Ethernet interfaces
PoE Power Budget
Up to 210 W
PoE Standard
IEEE 802.3af/at
Remote Management
Hik-Connect and DDNS support
```

NVR Storage and Auxiliary Interfaces

```
SATA Interfaces
4
Maximum HDD Capacity
Up to 10TB per disk
Maximum Listed Internal Storage
Up to 40TB using four compatible 10TB drives
eSATA
1 interface
Alarm Inputs/Outputs
16 inputs/4 outputs; 16 inputs/8 outputs optional
Serial Interfaces
1 × RS-485 half-duplex and 1 × RS-232
Front USB
2 × USB 2.0
Rear USB
1 × USB 3.0
```

NVR General Specifications

```
Power Supply
100 to 240 VAC, 50 to 60 Hz
Recorder Consumption
Up to 20 W without HDD and with PoE off
Operating Temperature
-10°C to 55°C (14°F to 131°F)
Operating Humidity
10% to 90%
Dimensions
445 × 400 × 75 mm (17.5 × 15.7 × 3.0 in.)
Weight
Up to 5 kg (11 lb.) without HDD
FCC Certification
Part 15 Subpart B; ANSI C63.4-2014
CE Standards
EN 55032:2015, EN 61000-3-2, EN 61000-3-3 and EN 50130-4
```

Camera Identification

```
Camera Model
DS-2CD2387G2-LSU/SL
Camera Type
8MP ColorVu fixed turret network camera with strobe light and audible warning
Available Lens Options
2.8 mm or 4 mm fixed lens
```

Camera Imaging

```
Image Sensor
1/1.2-inch Progressive Scan CMOS
Maximum Resolution
3840 × 2160 (8MP/4K)
Shutter Speed
1/3 s to 1/100,000 s
Minimum Illumination
Color: 0.0005 lux at F1.0 with AGC on; 0 lux with white light
Day and Night Mode
24/7 color imaging
Adjustment Range
Pan: 0° to 360°; tilt: 0° to 75°; rotation: 0° to 360°
```

Camera Lens

```
Lens Type
Fixed focal lens
Lens Mount
M mount
Iris Type
Fixed
Maximum Aperture
F1.0
2.8 mm Field of View
Horizontal: 102°; vertical: 52°; diagonal: 124°
4 mm Field of View
Horizontal: 88°; vertical: 47°; diagonal: 104°
2.8 mm Depth of Field
4 m to infinity
4 mm Depth of Field
6.2 m to infinity
2.8 mm DORI Distance
Detect: 96 m; observe: 38 m; recognize: 19 m; identify: 9 m
4 mm DORI Distance
Detect: 102 m; observe: 40 m; recognize: 20 m; identify: 10 m
```

Camera Illumination

```
Supplement Light
White light
Supplement Light Range
Up to 30 m (approximately 98 ft.)
Smart Supplement Light
Yes
```

Camera Video

```
Main Stream - 50 Hz
25 fps at 3840 × 2160, 3200 × 1800, 2688 × 1520, 1920 × 1080 or 1280 × 720
Main Stream - 60 Hz
24 fps at 3840 × 2160; 30 fps at 3200 × 1800, 2688 × 1520, 1920 × 1080 or 1280 × 720
Sub-Stream - 50 Hz
25 fps at 1280 × 720, 640 × 480 or 640 × 360
Sub-Stream - 60 Hz
30 fps at 1280 × 720, 640 × 480 or 640 × 360
Third Stream - 50 Hz
10 fps at 1920 × 1080, 1280 × 720, 640 × 480 or 640 × 360
Third Stream - 60 Hz
10 fps at 1920 × 1080, 1280 × 720, 640 × 480 or 640 × 360
Main Stream Compression
H.265, H.264, H.264+ and H.265+
Sub-Stream Compression
H.265, H.264 and MJPEG
Third Stream Compression
H.265 and H.264
Video Bit Rate
32 Kbps to 16 Mbps
H.264 Profiles
Baseline, Main and High Profile
H.265 Profile
Main Profile
Bit Rate Control
CBR or VBR
Scalable Video Coding
Supported with H.264 and H.265 encoding
Region of Interest
One fixed region for the main stream and sub-stream
```

Camera Audio and Active Deterrence

```
Built-In Microphone
Yes
Built-In Speaker
1.5 W; 95 dB measured at 10 cm
Two-Way Audio
Supported
Active Warning
Built-in strobe light and audible alarm
Environmental Noise Filtering
Yes
Audio Sampling Rates
8, 16, 32, 44.1 and 48 kHz
Audio Compression
G.711ulaw, G.711alaw, G.722.1, G.726, MP2L2, PCM, MP3 and AAC-LC
Audio Bit Rates
64 Kbps for G.711; 16 Kbps for G.722.1 and G.726; 32 to 192 Kbps for MP2L2; 8 to 320 Kbps for MP3; 16 to 64 Kbps for AAC-LC
External Audio Input
1 line input; maximum 3.3 Vpp; 4.7 KΩ input impedance; non-equilibrium interface
External Audio Output
1 line output; maximum 3.3 Vpp; 100 Ω output impedance; non-equilibrium interface
```

Camera Image Enhancement

```
Wide Dynamic Range
130 dB WDR
Signal-to-Noise Ratio
52 dB or greater
Privacy Masks
Eight programmable polygon masks with configurable mask color or mosaic
Day/Night Switching
Day, night, automatic or scheduled
Image Enhancement
BLC, HLC and 3D DNR
Image Parameter Switching
Supported
Adjustable Image Settings
Rotate mode, saturation, brightness, contrast, sharpness, gain and white balance
```

Camera Intelligent Events

```
Target Classification
Human and vehicle classification based on deep learning
Basic Events
Motion detection with specified human/vehicle target support, video tampering, network disconnection, IP address conflict, illegal login, HDD full and HDD error
Smart Events
Line crossing, intrusion, region entrance and region exiting detection with specified human/vehicle target support; scene change detection
Face Capture
Yes
Event Linkage Actions
Upload to NAS, memory card or FTP; notify surveillance center; trigger recording; trigger image capture; send email
```

Camera Network and Storage

```
Ethernet Interface
1 × RJ45 10/100 Mbps self-adaptive Ethernet port
Simultaneous Live View
Up to six channels
API Support
ONVIF Profile S, Profile G and Profile T; ISAPI; SDK; ISUP
Network Protocols
TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket and WebSockets
Users
Up to 32 users with administrator, operator and user access levels
Security
Password protection, complicated passwords, HTTPS encryption, IP address filter, security audit log, HTTP/HTTPS basic and digest authentication, TLS 1.1/1.2, WSSE and ONVIF digest authentication
Network Storage
NAS using NFS or SMB/CIFS; Automatic Network Replenishment
Local Camera Storage
microSD, microSDHC, microSDXC or TF card up to 512GB
Supported Clients
iVMS-4200, Hik-Connect and Hik-Central
Plug-In Live View
Internet Explorer 10 and Internet Explorer 11
Plug-In-Free Live View
Chrome 57+, Firefox 52+ and Edge 89+
Local Service Browsers
Chrome 57+, Firefox 52+ and Edge 89+
```

Camera Interfaces

```
Alarm Interface
1 input and 1 output; maximum output rating: 24 VDC, 1 A
Reset Key
Yes
```

Camera Power and Construction

```
DC Power
12 VDC ±25%; 0.63 A; maximum 8.5 W; 5.5 mm coaxial connector with reverse-polarity protection
PoE Power
IEEE 802.3af, Class 3; 36 to 57 V; 0.24 to 0.15 A
Construction
Metal cover and metal main body
Camera Dimensions
Ø 138.3 × 120.1 mm (Ø 5.4 × 4.7 in.)
Package Dimensions
170 × 170 × 150 mm (6.7 × 6.7 × 5.9 in.)
Camera Weight
Approximately 900 g (2.0 lb.)
Packaged Weight
Approximately 1,190 g (2.6 lb.)
Storage Conditions
-30°C to 60°C (-22°F to 140°F); humidity 95% or less, non-condensing
Startup and Operating Conditions
-30°C to 60°C (-22°F to 140°F); humidity 95% or less, non-condensing
Weather Protection
IP67 under IEC 60529-2013
Anti-Corrosion Classification
No specific anti-corrosion protection
General Functions
Anti-flicker, heartbeat, mirror, email password reset and pixel counter
```

Camera Approvals

```
FCC
47 CFR Part 15, Subpart B
CE-EMC
EN 55032:2015; EN 61000-3-2:2019; EN 61000-3-3:2013 + A1:2019; EN 50130-4:2011 + A1:2014
Additional EMC Approvals
RCM AS/NZS CISPR 32:2015; IC ICES-003 Issue 7; KC KN32:2015 and KN35:2015
Safety Approvals
UL 62368-1; CB IEC 62368-1:2014 + A11; CE-LVD EN 62368-1:2014/A11:2017
Environmental Compliance
CE-RoHS 2011/65/EU; WEEE 2012/19/EU; REACH Regulation (EC) No. 1907/2006
```

Compatible Optional Camera Accessories

```
DS-1280ZJ-PT6
Junction box
DS-1271ZJ-140
Pendant mount
DS-1276ZJ-SUS
Corner mount
DS-1273ZJ-140B
Wall mount
DS-1275ZJ-SUS
Vertical pole mount
DS-1273ZJ-140
Wall mount

Accessory note: These mounting accessories are identified as optional in the camera datasheet. The supplied NVR datasheet does not list separate optional accessories. Hard drives, network cabling, display, mounting accessories, and camera quantities should only be described as included when confirmed by the seller's bundle contents.

```

Ideal Applications and Common Uses

  • Large residential properties requiring multiple exterior and interior camera positions
  • Warehouses, offices and commercial buildings with plans to expand up to 32 cameras
  • Retail stores that can benefit from POS information overlay and event-triggered recording
  • Entrances, driveways, loading areas and parking lots where human and vehicle classification is useful
  • Locations requiring detailed 8MP video and 24/7 color imaging
  • Areas where built-in two-way audio can support communication with visitors or staff
  • Perimeter locations where strobe and audible warnings can provide active deterrence
  • Installations requiring centralized recording with up to four internal hard drives
  • Projects requiring 4K local display output and multi-channel synchronous playback
  • Indoor or outdoor camera locations exposed to dust, rain and changing temperatures
```

Environmental note: Although the camera is IP67-rated, the datasheet classifies it as having no specific anti-corrosion protection. It is not intended for locations that require specialized corrosion resistance, such as coastlines, docks or chemical plants, without additional protection.

```

Important Product Configuration Notes

```
Camera Resolution
The DS-2CD2387G2-LSU/SL is an 8MP camera. The “12MP” figure associated with the recorder refers to one of its supported recording and decoding resolutions, not the resolution of this camera.
PoE Port Count
The recorder has 24 physical PoE camera ports but supports up to 32 IP camera channels. Additional cameras beyond the built-in PoE ports require a compatible external network/PoE arrangement.
Camera Quantity
The number of cameras included in the package is not stated in the supplied manufacturer datasheets and must be confirmed from the seller's bundle configuration.
Hard Drive Capacity
The recorder supports four SATA drives of up to 10TB each. The datasheet does not specify that hard drives are included with the bundle.
Lens Selection
The camera is available with a 2.8 mm or 4 mm lens. The exact lens included must be confirmed before purchase.
```
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