Standalond Digital Video Recorder DVR NT-D8604DH-E(E2)

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 pc

Supply Capability:: 5000 pc/month

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Standalond Digital Video Recorder DVR NT-D8604DH-E(E2)

• Support 3G dialing,WIFI
• Support multiple web browsers
• 2 USB port to support mouse,backup,burn
and upgrade etc.
• More than 20 kinds of languages
• Operation:Embedded Linux
• Dual stream: Can be set up in each channel
• GUI:16-bit,Display split:1/4/8/9/16
• Image coding:H.264
• Video: 4ch 960H real time
• Video input:4*BNC
• Audio input:4×RCA
• Video output:1BNC,(1.0Vp-p,75Ω),1VGA,HDMI 1080P

Q:What is the reason for monitoring the camera's black screen?: Fourth, the monitoring of the video signal line broken (including line damage, poor contact), but also cause a black screen.

Q:Dvr monitor the video recorder without image output is what the problem: If the format is only the system disk, then the system, monitoring software must be reloaded, set; VCR is the embedded host, format only to clear the video data, the system program and settings are stored in the motherboard chip So there is no need to reset it.

Q:There is a surveillance camera, want to adjust the location, hand touch the head, even live, do not know how the matter: It's static Your camera does not have to be grounded for a long time The static will accumulate You will touch it until he will suddenly discharge So you feel he has electricity You can give the monitor system a regular power outage or discharge on it

Q:What do I need to do with video surveillance systems?: The monitoring system is composed of a large part of the camera, transmission, control, display, record registration. The camera transmits the video image to the control panel through the coaxial video cable, controls the host computer and assigns the video signal to each monitor and video equipment, and can simultaneously input the voice signal to be transmitted into the video recorder. By controlling the host, the operator can issue commands to control the up, down, left and right movements of the pan / tilt and zoom in on the lens, and can be controlled by the host in multi-camera and PTZ Between the switch. The use of special video processing mode, the image can be input, playback, processing and other operations, so that the video effect to achieve the best.

Q:HD camera is said that his clarity, infrared camera is that it's night vision function, in order to highlight the main features of the name of a: 2, the lens sub-focus lens and zoom lens. Zoom lens focal length is variable, the scene can be closer to or push away, to achieve several times the zoom effect, use it to the blackboard on the board book clearly, can also be the whole picture of the classroom, the focus can not be achieved this function. Equipped with a lens for the electric three variable lens, can be zoom, focus and aperture adjustment. Zoom to zoom in and out of the picture, change the viewing angle and image size; adjust the focus and aperture, adjust the image clarity. Can be classroom teacher or a student's big picture clear real-time fixed in the entire screen, can also push to the whole class image.

Q:Video surveillance video storage how to calculate the hard disk needs I use the 720P camera, to store 3 months of video, need to use the hard disk?: If you want to calculate the number of hard disk and disk array, then you need to know the relevant data, such as: hard disk capacity, disk array number, the required RAID level. For this calculation, you can recommend a video monitor memory capacity calculator developed by the Chinese Blue Whale. As long as you enter a number of related data, it will automatically calculate the results you want. You can also use this software to calculate the monitoring storage capacity. Specific you can log on their official website to see.

Q:3.6mm and 6mm surveillance camera can see the screen angle is how much: 3.6MM angle is generally about 87 degrees 6MM angle is 60 degrees. The scope of the monitoring is not the same, a clear distance is not the same, 3.6MM lens is generally the best clear distance of 7-8 m 6MM lens the best clear distance of 15 meters 3.6mm: 90 ° about 6mm: 60 ° 8mm: 45 ° about 12mm: 35 ° or so

Q:An electronic surveillance camera every month to consume how much electricity: 1, the general camera is divided into four, the ball machine, infrared one machine, infrared hemisphere machine and bolt;

Q:What does it mean to monitor the camera channel?: Channel refers to the physical location of the video input of the camera on the monitoring matrix or the DVR device.

Q:The working principle of the camera with infrared light: First, the characteristics of infrared and infrared light light is an electromagnetic wave, with the same nature as the radio waves. Its wavelength range is from several nanometers (1nm = 10-9m) to about 1mm (mm). The visible wavelength is from 380nm to 780nm, the wavelength of visible light from long to short into red, orange, yellow, green, blue, blue, violet, the wavelength is shorter than the purple light, the wavelength of visible light is only a part of the visible light, visible light Called ultraviolet light, the wavelength is longer than the infrared light called infrared light. Infrared light wavelength between 780nm ~ 1000μm, located between the radio and visible light. Infrared light according to its infrared radiation mechanism is divided into semiconductor solid light (infrared emission diode IR LED) infrared light and heat radiation infrared light two. At present in the CCTV infrared camera in the former use more.

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