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• 1、What is an IP Camera ?Check the answers
  IP is an abbreviation for Internet Protocol, the most common protocol for communication over computer networks and the internet. IP Camera is a camera that crates digitized video streams and transfers via a wired or wireless IP network, enabling monitoring and video recording as far away as the network reaches. In other words, using an IP camera can save a lot of money on installation since most facilities are already wired with LAN cables. Wiring coaxial cables is the major expense when implementing analog cameras. Also, it allows users to have a camera at one location while view live video at another location over the network / internet.

• 1、How much bandwidth does an IP Camera need?Check the answers
  It depends on both the resolution and frame rate. It also depends on the compression technology the IP camera is using. Below are three of the most popular compression technology and the required bandwidth and other important information.

  Compression Protocol M-JPEG MPEG-2 MPEG-4

  Compression Rate 6 30-40 200-500

  Resolution 352 x 288 720 x 576 720 x 576

  FPS 25-30 fps 50-60 fps 25-30 fps

  Bandwidth Required 1.5Mbps 4-15Mbps 10K-1Mbps

  Also, please note that 30 frames/s (NTSC) is the required frame rate to provide continuous motion and good quality (DVD lik) video.

• 2、What is the difference between a web camera and an IP camera? Check the answers
  A web camera is connected to a PC, normally through USB, and uses the PC to make video available to other viewers. It will not work without a PC locally connected to the camera. An IP camera usually stands alone, and combines the functionality of a high-end web camera, the PC and network interface into one network-ready product.

• 1、Quality of Network Video Image Check the answers
  High quality network camera also comparable to analog camera's image sensor(CCD) and lens. Analog cameras and video servers integrated then the analog camera collected image information can transmitted directly to the network. High quality camera for professional use and we must separated with a simple low-end Web camera.

• 2、Can not visit NVS via Digital Survillance Central Management Software ? Check the answers
  Possible Reason： Network is not through Solution： Connect your PC to network directly,,checking whether it works normally or not. Exclude faulty of cable first,faulty network caused by computer virus until it is expedite with the command of Ping.Possible Reason： IP Address has been occupied by other devices Solution： Stop the connection between NVS and Network, hook up NVS to the PC directly, reinstall IP Address according to the proper operations recommended. Possible Reason：IP Address is not in the local network. Solution： Check IP Address , Subnet Mask address of the NVS and the setting of Gateway. Possible Reason： There is a collision between the MAC and NVS. Solution：Change MAC of the NVS. Possible Reason： Unknown Solution： Press RESET to retrieve default, then connect it again, the defaul IP Address is 192.168.55.160,subnet masking is 255.255.255.0

• 3、Can I save video from the camera?Check the answers
  You can record the video at remote / local by using the software provided by the IP camera manufacturer. The ability to record the video at remote site is a major advantage of IP camera over traditional analog camera. NAS (Network Attached Storage) is very useful in video storage, and is easy to install.