System Overview

Dahua NVR4000-4KS2 is introduced as the first Lite series NVR

that supports for 4K and H.265 encoding technology with excellent

performance at an affordable price. For applications where image

details are highly required, it delivers the capability of 4K resolution

processing. The NVR can be served as edge storage, central storage or

backup storage with an intuitive shortcut operation menu for remote

management and control.

Due to its cost-effective and easy-to-install design, this NVR is ideal for

a wide range of applications such as public safety, water conservancy,

transportation, city centers, education, and financial institutions.

The NVR is compatible with numerous third-party devices making it

the perfect solution for surveillance systems that work independently

of video management system (VMS). It features an open architecture

that supports for multi-user access and is compatible with ONVIF 2.4

protocol, enabling interoperability with IP cameras.

Functions

4K Resolution

4K resolution is a revolutionary breakthrough in image processing

technology. 4K delivers four times the resolution of standard HDTV

1080p cameras 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.

High Efficiency Video Coding (H.265)

The H.265 (ITU-T VCEG) video compression standard offers double the

data compression ratio at the same level of video quality, or substantially

improved video quality at the same bit rate, as compared to older video

compression technologies. H.265 offers such impressive compression

by expanding the pattern comparison and difference-coding, improving

motion vector prediction and motion region merging, and incorporating

an additional filtering step called sample-adaptive offset filtering.

Intelligent Video System

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.

ANR (Automatic Network Replenishment 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.

Easy4ip

The Easy4ip app is available on the iOS App Store and Google Play. It

makes surveillance easy and simple, allowing you to remotely access NVR

devices, view live video, receive event push notifications, and search for

recorded videos from an iPhone, iPad, or Android phone at anytime from virtually anywhere!

Technical Specification

System

Main Processor Quad-core embedded processor

Operating System Embedded LINUX

Aduio and Video

IP Camera Input 16/32 Channel

Two-way Talk 1 Channel Input, 1 Channel Output, RCA

Display

Interface 1 HDMI, 1 VGA

Resolution

HDMI: 3840×2160, 1920×1080, 1280×1024,

1280×720

VGA: 1920×1080, 1280×1024, 1280×720

Decoding Capacity 2ch@4K 30fps, 8ch@1080P 30fps

Multi-screen Display

16ch: 1/4/8/9/16

32ch: 1/4/8/9/16/25/36

OSD Camera title, Time, Camera lock, Motion detection,

Recording

Recording

Compression H.265/ H.264

Resolution 8Mp/ 6Mp/ 5MP/ 4MP/ 3MP/ 1080P/ 1.3MP/ 720P

etc.

Record Rate 200Mbps

Bit Rate 16Kbps ~ 20Mbps Per Channel

Record Mode

Manual, Schedule (Regular, Continuous), MD

(Video detection: Motion Detection, Tampering,

Video Loss), Stop

Record Interval 1 ~ 120 min (default: 60 min), Pre-record:

1 ~ 30 sec, Post-record: 10 ~ 300 sec

Video Detection and Alarm

Trigger Events Recording, PTZ, Tour, Video Push, Email, Snapshot,

Buzzer and Screen Tips

Video Detection Motion Detection, MD Zones: 396 (22 × 18),

Video Loss and Tampering

Alarm input 4 Channel

Relay Output 2 Channel

Playback and Backup

Playback 1/4/9/16

Search Mode Time /Date, MD and Exact Search

(accurate to second), Smart search

Playback Function

Play, Pause, Stop, Rewind, Fast play, Slow Play,

Next File, Previous File, Next Camera, Previous

Camera, Full Screen, Backup Selection, Digital

Zoom

Backup Mode USB Device/Network

Third-party Support

Third-party Support

Arecont Vision, Airlive, AXIS, Canon, Dynacolor,

JVC, LG, Panasonic, Pelco, PSIA, Samsung, Sanyo,

Sony, Watchnet and more

Network

Interface 1 RJ-45 Port (10/100/1000Mbps)

Ethernet Port 1 Independent 1000Mbps Ethernet Port

PoE 16 ports (IEEE802.3at/af)

Network Function

HTTP, HTTPS, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP,

SMTP, NTP, DHCP, DNS, IP Filter, PPPoE, DDNS, FTP,

SNMP, IP Search (Support Dahua IP camera, DVR,

NVS, etc.), Easy4ip

Max. User Access 128 users

Smart Phone iPhone, iPad, Android

Interoperability ONVIF 2.4, SDK, CGI

Storage

Internal HDD 2 SATA III Ports, Up to 6 TB capacity for each HDD

HDD Mode Single

Auxiliary Interface

USB 2 ports(1 USB2.0, 1 USB3.0)

RS232 1 Channel

RS485 N/A

Electrical

Power Supply AC100V ~ 240V, 50 ~ 60 Hz

Power Consumption

NVR: < 13.2W(without HDD)

PoE: Max 25.5w for single port, 130w in total

Environmental

Operating Conditions -10°C ~ +55°C (+14°F ~ +131°F), 86 ~ 106kpa

Storage Conditions -20°C ~ +70°C (-4°F ~ +158°F), 0 ~ 90% RH

Construction

Dimensions 1U, 375mm×327.5mm×53mm

(14.8" x 12.9" x2.1")

Net Weight 2.6kg (5.7 lb) (without HDD)

Gross Weight 4kg(8.8 lb)(without HDD)

Certifications

CE EN55032, EN55024, EN50130-4, EN60950-1

FCC Part 15 Subpart B, ANSI C63.4-2014

UL UL60950-1