Networking Your Digital Video Recorder
Networking your digital video recorder is not necessary if your only want to control and view the cameras directly from the digital video recorder. You would then just have a closed system.
However, if you need to view live or recorded images other then directly from the digital video recorder you can, through a network connection. The network connection will allow you to view the images from the digital video recorder on any other computer, which is connected to same closed network. If you need to view the images from outside that network, say in another part of the world, you will also need an internet connect.
Most digital video recorders have built in web servers, and this allows you to connect to the DVR directly from your browser. There is normally software that is supplied with the digital video recorder this software will allow you to view live and recorded video, program the DVR and set it up as if you were standing in front of it.
Most people will have some sort of internet broadband connect available to them. This can be as cable internet, satellite internet or over the phone line ADSL or ADSL+2 internet. Where there is no internet connection, you can also use 3G wireless connection. Most internet service providers have available, a 3G USB modem, the problem here is that DVRs do not have the software to drive the USB port to recognize the USB Modem. To overcome the problem you can use a 3G router, which the USB modem will plug into, then the DVR will plug in the Ethernet port on the 3G router. This works very well, the only issue with this setup is sometimes 3G modems do not give you great reception in all areas.
To be able to view the cameras that are connected to your digital video recorder remotely, can be of great benefit. A shop owner that only works some days of the week, and needs to be elsewhere the other part of the week, can still look in on the shop remotely, fast and very easy. Maybe you are worried about how that baby sitter is going while you are your husband are out to dinner. Just connect to your DVR via you mobile phone and check in. Security guards at a college campus can view there campus cameras while on their rounds, straight from a mobile phone or even an iPad that they are carrying.
The reasons that you would want to view your cameras remotely are endless, but the fact that you can, and with very little effort makes your security camera surveillance system very valuable.