What is the working principle of security monitoring system?
The simple answer to you, to understand: if a fixed camera power line, a video line, a video recorder, a head in head position in the camera position, then on the line, if the camera is active with a signal line (like power line), installed in the room on the recorder on the line.
The big project needs to connect to the distributor above, the allocator is given to the VCR and the matrix, and the rest of the debugging is unclear. The principle of these, you go online to check the role of these devices, slowly know.
