CCTV can generally monitor how far it is?
Monitoring the distance depends on the length of your camera's output fiber, unlimited length, and how long it takes to store an optical amplifier. Depending on your hard drive, the format is different and the size is different
Storage time: according to the size of the hard disk, just like a cylinder, the cylinder is large and the water is small. It is also different from compressed format, and the file size is different.
Camera distance: according to the lens size, can monitor 1-2 meters to 100 meters (twenty or thirty meters to reach a fixed camera, zoom camera, up to 100 meters); transmission: if you use a cable transmission, hundreds of kilometers is not a problem, if you use the network to check the network, as long as you can see the place. Of course, this requires a certain agreement, and no one can read it at will.
