Dahua Pro Series N52A4P: 24-channel 4K Network Video Recorder

Key Features

• Smart H.265+ and Smart H.264+ Video Compression
• Maximum 320 Mbps Incoming Bandwidth
• Up to 12 MP Resolution for Preview and Playback
• Support for IPC and UPnP Protocols
• 24 PoE Ports
• Customized Live View Layout with Support for Panoramic Displays
• Intelligent Video System with Business Analytics
• 3D Intelligent Positioning with Dahua PTZ Cameras

Intelligent Features: Pro Series, People Counting, Heat Map, Face Detection, Tripwire, Intrusion, Missing Object, Abandoned Object Detection

System Overview

Dahua's Pro Series network video recorders offer excellent performance and high recording quality for IP video surveillance applications. For applications where details are critical for identification, this professional NVR provides a powerful processor with up to 4K resolution. The NVR features a mouse shortcut operation menu, remote management and control, centre storage, edge storage, and backup storage.

Designed as a cost-effective and easy-to-install recorder, this NVR is an ideal addition to any security system that monitors public spaces, water conservancy, transportation, city centers, schools, and financial institutions.

The NVR is compatible with numerous third-party devices, making it the perfect solution for surveillance systems with or without a video management system (VMS). Its open architecture supports multi-user access and it is compatible with ONVIF 2.4, enabling interoperability when combined with 4K cameras.

Functions

Dewarping Mode

The NVR has the ability to correct the distortion in a circular panoramic view produced by a fisheye lens. The NVR offers various dewarping modes for different installations and configurations.

N+M Hot Standby

The highly reliable N+M Hot Standby redundancy design provides a secure, fail-over technique ensuring immediate backup. In the event of a system failure, the slave instantly takes over the master, ensuring no data is lost.

Technical Specifications

System

• Main Processor: Embedded Quad-core Processor
• Operating System: Embedded Linux

Audio and Video

• IP Camera Input: 24 Channels
• Two-way Talk: Input: One (1) Channel, RCA; Output: One (1) Channel, RCA
• Display: One (1) HDMI Port (4K); One (1) VGA Port (1080p)
• Resolution: 3840 x 2160, 1920 x 1080, 1280 x 1024, 1280 x 720, 1024 x 768
• Multi-screen Display: 1/4/8/9/16/25
• On-screen Display: Camera Title, Time, Video Loss, Camera Lock, Motion Detection, Recording
• Recording Compression: Smart H.265+, H.265, Smart H.264+, H.264, MJPEG
• Recording Resolution: 12 MP, 8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, 1.3 MP, 720p, D1, CIF
• Recording Bit Rate: 320 Mbps
• Bit Rate: 16 Kbps to 20 Mbps per channel
• Record Mode: Manual, Schedule (Regular, Motion Detection), Alarm, IVS, Stop
• Record Interval: 1 to 120 minutes (default: 60 minutes)
• Pre-record: 1 to 30 s
• Post-record: 10 to 300 s

Video Detection and Alarm

• Trigger Events: Recording, PTZ, Tour, Alarm Out, Video Push, Email, FTP, Snapshot, Buzzer and Screen Tips
• Video Detection: Motion Detection, MD Zones: 396 (22 x 18), Video Loss and Tampering
• Alarm Input: Four (4) Channels, Low Level Effective, Green Terminal Interface
• Relay Output: Two (2) Channels, NO/NC Programmable, Green Terminal Interface

Playback and Backup

• Sync Playback: 1/4/9/16
• NVR Video Output: Four (4) Channels at 4K or 16 Channels at 1080p
• Search Mode: Time/Date, Alarm, MD and Exact Search (accurate to one second)
• Playback Function: Play, Pause, Stop, Rewind, Fast Play, Slow Play, Next File, Previous File, Next Camera, Previous Camera, Full Screen, Repeat, Shuffle, Backup Selection, Digital Zoom
• Backup Mode: USB Device, Network

Network

• Interface: One (1) RJ-45 Port (10/100/1000 Mbps)
• Ethernet Port: One (1) Independent 1000 Mbps Ethernet Port
• PoE: 24 Ports (IEEE802.3af/at), 10/100 Mbps
• Forwarding Rate: 320 Mbps
• Network Function: HTTP, HTTPS, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search (Support for Dahua IP cameras, DVRs, NVS)
• Maximum User Access: 128 Users
• Mobile Operating System: IOS, Android
• Interoperability: ONVIF 2.4, CGI Conformant

Storage

• Internal HDD: Two (2) SATA III Ports, Up to 8 TB capacity for each HDD
• Maximum Storage Capacity: 16 TB
• HDD Mode: Single

Auxiliary Interface

• USB: One (1) USB 3.0 Port, rear panel; One (1) USB 2.0 Port, front panel
• RS232: One (1) Port for PC Communication and Keyboard

Electrical

• Power Supply: Single, 100 VAC to 240 VAC, 50/60 Hz
• Power Consumption: < 16 W, without HDD
• Total PoE Power: 25.5 W single port, 220 W total

Environmental

• Operating Conditions: -10° C to +55° C (+14° F to +131° F)
• Storage Conditions: -20° C to +70° C (-4° F to +158° F), 0 to 90% RH

Construction

• Dimensions: 1U, 440.0 mm x 419.96 mm x 43.65 mm (17.30 in. x 16.50 in. x 1.70 in.)
• Net Weight: 4.50 kg (9.90 lb), without HDD
• Gross Weight: 6.45 kg (14.20 lb)
• Installation: Rack-mounted

Certifications

• Safety: UL 60950-1, CAN/CSA C22.2 No.60960-1
• Electromagnetic Compatibility (EMC): FCC Part 15 Subpart B, ANSI C63.4-2014

Dimensions (mm/in.)

Main Unit: 419.96 mm (16.53 in.) Length x 390.00 mm (15.35 in.) Width x 43.65 mm (1.72 in.) Height

Rack Mount Tray (PFH101): 482.60 mm (19.0 in.) Length x 281.20 mm (11.07 in.) Width x 43.70 mm (1.72 in.) Height

Ordering Information

Intelligence Features Explained

Standard Features

• Tampering: Tampering with the camera.
• Camera Error: Camera loses or changes focus drastically, error writing to an onboard Micro SD card, or error sending/receiving data over the network.
• Unauthorized Access: Unauthorized access to the camera.

Premium Features

• Motion: An object moves through any part of the scene.
• Tripwire: A target crosses a user-defined line.
• Intrusion: A target enters or exits a defined perimeter.
• Scene Change: A camera moves to change the scene or covers the camera to obscure the scene.
• Abandoned/Missing Object: A target leaves an object in a designated area, or a target removes an object from the same designated area.

Advanced Features

• Facial Detection: Detects and captures a snapshot of a human face in a defined area within a scene.
• People Counting: Measures the number of customers, visitors, or passengers in a surveillance scene.
• Heat Map: Generates a visual representation of data.