Dahua / 4-Channel / 8MP / PoE NVR / 2 SATA / 2 TB HDD / DH-N42B1P2 Dahua

SLK-DH-N42B1P2
Item number: XXXX

• H.265 and H.264 Video Compression
• Maximum 200 Mbps Incoming Bandwidth
• Up to 8 MP Resolution for Preview and Playback
• Simultaneous HDMI and VGA Video Output
• Support for IPC and UPnP Protocols
• 4 PoE Ports
• Compatible with Dahua Smart Motion Detection Cameras
• Support for Automatic Network Replenishment (ANR) Technology
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Technical Specification

Series:	Lite
Compression:	H.265, H.264, MJPEG
Channels:	4
Input Bandwidth:	200Mbps
Record Bandwidth:	200Mbps
Video Output:	One (1) HDMI One (1) VGA
HDD:	Two (2) SATA III Ports, Up to 8 TB capacity for each HDD
RAID:	–
eSATA:	0
Mini SAS:	0
Audio In:	One (1) Channel, RCA
Audio Out:	One (1) Channel, RCA
Alarm In:	4
Alarm Out:	2
Network:	1 Gigabit Port
POE:	Four (4) Ports (IEEE802.3af/at)
USB:	1 USB 3.0, 1 USB 2.0
Power:	48 VDC, 2 A <9W (No HDD)
IVS:	Yes (All Channels)
Fisheye Dewarp:	No
POS:	No

System
Main Processor	Embedded Quad-core Processor
Operating System	Embedded Linux
Audio and Video
IP Camera Input	Four (4) Channels
Two-way Talk	Input: One (1) Channel, RCA Output: One (1) Channel, RCA
Display
Interface	One (1) HDMI One (1) VGA
Native Output Resolution	3840 x 2160, 1920 x 1080, 1280 x 1024, 1280 x 720, 1024 x 768
Maximum Decoding	Two (2) Channels of 4K/6 MP at 30 fps Three (3) Channels of 5 MP at 30 fps Four (4) Channels of 4 MP/3 MP at 30 fps Four (4) Channels of 1080p at 60 fps
Multi-screen Display	1/4
On-screen Display	Camera Title, Time, Video Loss, Camera Lock, Motion Detection, Recording
Recording
Compression	H.265, H.264, MJPEG
Supported IP Camera Resolution	8 MP, 6 MP, 5 MP, 4 MP, 3 MP, 1080p, 1.3 MP, 720p, D1, CIF,
Recording Resolution	Four (4) Channels of 4K at 30 fps
Maximum Incoming Bandwidth	200 Mbps
Bit Rate	16 Kbps to 20 Mbps per channel
Record Mode	Manual, Schedule (Regular, Continuous), Motion Detection (Video Detection, Motion Detection, Tampering, Video Loss), 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
Search Mode	Time/Date, Alarm, MD and Exact Search (accurate to one second), Smart Search
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
Third-party Support
Third-party Support	Dahua, Arecont Vision, AXIS, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videotec, Vivotek, and others
Network
Ethernet	One (1) RJ-45 Port (10/100/1000 Mbps)
PoE	Four (4) Ports (IEEE802.3af/at)
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 10 TB capacity for each HDD
HDD Mode	Single
Auxiliary Interface
USB	One (1) USB 3.0 Port One (1) USB 2.0 Port
Electrical
Power Supply	48 VDC, 2 A
NVR Power Consumption	< 9 W, without HDD
Total PoE Budget	25.5 W single port, 50 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
NVR	1U, 375.0 mm x 281.50 mm x 56.0 mm (14.80 in. x 11.10 in. x 2.20 in.)
NVR with PFH101 Rack Mount Tray	482.60 mm x 281.50 mm x 56.0 mm (19.0 in. x 11.10 in. x 2.20 in)
Net Weight	1.6 kg (3.53 lb), without HDD
Gross Weight	3.2 kg (7.05 lb), without HDD
Certifications
CE	EN55032, EN55024, EN60950-1
Safety	UL 60950-1 CAN/CSA C22.2 No.60960-1
Electromagnetic Compatibility (EMC)	FCC CFR 47 Part 15 Subpart B ANSI C63.4-2014
Camera Support
Smart Motion Detection	Any channel connected to a Dahua Network camera with Smart Motion Detection
Intelligence
IVS triggers an alarm and takes a defined action for the following events:
Standard Features	• Tampering with the camera. • Camera loses or changes focus drastically. • Error writing to an onboard Micro SD card. • Error sending or receiving data over the network. • 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 person or object moves the camera to change the scene or covers the camera to obscure the scene.
Abandoned/Missing Object	A target leaves an object in designated area, or a target removes an object from the same designated area.
Advanced Features (records data from IP cameras with Advanced Features)
Facial Detection	Detects and captures a snapshot of a human face in a defined area within a scene.
People Counting	Measure the number of customers, visitors or passengers in a surveillance scene.
Heat Map	Generates a visual representation of data.

1. The recorder SMD functions are available only when connected to a Dahua network camera with SMD
functionality. Pair a Smart Motion Detection camera with a Dahua recording device that also offers SMD
functionality to take advantage of SMD alarm filtering and object classification when searching and
playing back recorded video.

Downloads:
Data Sheet
Quick Start Guide
User Manual

System Overview
Dahua’s Lite 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. Additionally, the NVR features a mouse shortcut operation menu, remote management and control, center storage, edge storage, and back up 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

4K Resolution
4K resolution is a revolutionary breakthrough in image processing technology. 4K delivers four times the resolution of Full HD 1080p devices and offers superior picture quality and image details. 4K resolution improves the clarity of a magnified scene to view or record crisp forensic video from large areas.

Smart Motion Detection
Smart Motion Detection, a component of Dahua’s Analytics+ technology, improves alarm accuracy and decreases the number of false alarms. The advanced SMD algorithm analyzes a scene for human or vehicle motion, while filtering out other motion due to trees, leaves, animals, weather, and triggers an alarm when detected¹.

Intelligent Video System (IVS) Recording
Working with IVS-enabled IP cameras, the NVR recognizes and records video that contains IVS data on all IP channels. The NVR records standard intelligence at-the-edge features, as well as premium IVS features that detect abandoned or missing objects, Tripwire violations, and intrusion violations. The NVR is also capable of recording business analysis data – Facial Detection, People Counting, and Heat Map – from IP cameras with built-in Intelligent Business Analytics.

Heat Map
The Heat Map option highlights the areas with the highest concentration of people. This information can then be exported into a customized report to assist in business or forensic analysis.

Automatic Network Replenishment (ANR) Technology
Network Video Recorders with the ANR function automatically store video data on an IP camera SD card when the network is disconnected. After recovery of the network, the NVR automatically retrieves the video data stored on the camera.

Smart Add
The Smart Add function makes installing an IP surveillance system quick and easy. The NVR automatically detects and lists IP cameras connected to the same router as the NVR. This automatic detection makes adding cameras to the NVR a seamless process.