性能
| 播放控制器 |
Y |
| 记录时间 |
120 min |
| 视频丢失检测 |
Y |
| Number of motion detection zones |
396 |
| Two-way talk |
Y |
| 比特率 |
20000 Kbit/s |
| 以太网的数据传输率 |
10, 100 Mbit/s |
| 吞吐量数据率 |
80 Mbit/s |
| 核心的处理器数量 |
2 |
| 视频运动检测 |
Y |
| PTZ控制（平移/倾斜/缩放） |
Y |
| 内置处理器 |
Y |
| 备份功能 |
Y |
| 速射 |
Y |
| Multi-screen |
Y |
| 支持网络协议 |
HTTP, TCP/IP, IPv4/IPv6, UPnP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPoE,DDNS, FTP, IP Search |
| 用户数量 |
128 user(s) |
| 屏幕显示 |
Y |
| 视频输入通道 |
8 channels |
端口 & 界面
| 音频 RCA 输入接口 |
1 |
| 音频 RCA 输出接口 |
1 |
| SATA修订版 |
3.0 |
| 内部SATA端口数量 |
1 |
| 支持以太网（PoE） |
N |
| HDMI端口数量 |
1 |
| VGA（D-SUB）输出端口 |
1 |
存储介质
| 支持的硬盘数量 |
1 |
| 最大存储容量 |
6 TB |
| 硬盘接口 |
Serial ATA III |
另外
| HDMI 输出端口 |
Y |
| 以太网路(RJ-45)连接接口数量 |
1 |
Dual-core, 1 x HDMI, 1 x VGA, 1920 x 1080px, 8ch, 1 x SATA III, 2 x USB 2.0, H.264+/H.264/MJPEG, 80Mbps, 1 x RJ-45, 0.4 kg
System Overview
Dahua's NVR4000 is one of the NVRs which have the most reasonable price and best quality for IP video surveillance applications. This Lite NVR provides up to 5MP resolution. Additionally, the NVR features a mouse shortcut operation menu, remote management and control, centre storage, edge storage, and back up storage.
Designed as a low-cost, easy installation, 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 with or without a video management system (VMS). Its open architecture supports multi-user access and is compatible with ONVIF 2.4, enabling interoperability when combined with IP cameras.
Functions
Smart H.264+
Delivering high quality video without straining the network, Smart H.264+ is the optimized implementation of H.264. The Smart H.264+ encoding platform includes a scene adaptive encoding strategy, dynamic GOP, dynamic ROI, flexible multi-frame reference structure and intelligent noise reduction, providing a savings of up to 70% of bandwidth and storage when compared with standard H.264.
Smart Add
With the Smart Add function, the installation of IP system is as easy as an analog system, no matter the NVR with or withou a PoE switch embeded. It should be noted that the NVR has to be in the same router as cameras.
ANR (Automatic Network Replenishment Technology)
Video record in SD card in IP cameras when the network breaks down, and after the network recovered, the video will be transferred to NVR and then recorded in it.
P2P
You can monitor at anytime and anywhere with P2P. With this function, you can manage your devices more convenient.
