With a digital quad processor, you can display the pictures from four cameras on one monitor simultaneously. You connect up to four cameras to the digital quad processor at the video inputs. There are two video outputs, one for connecting a monitor and one for connecting a video recorder or a digital recorder. You can activate external equipment (such as exterior lighting) by means of the relay output. The Quad has an integrated test picture generator for fast and simple monitor calibration. The Quad also automatically detects all idle channels. With the digital quad processor, you have four options for showing the picture: Full screen, sequence (the pictures of all connected cameras are shown in sequence), picture in picture, or Quad. In Quad mode, you see all four pictures simultaneously and in real time (25 frames/second). You can conveniently configure the digital quad processor with the user-friendly on-screen display. For example, you can control and program the following functions: 2 x 2 zoom in playback mode, the real-time clock, the motion sensor of each channel, the freeze function and the built-in sounder. Up to 60 alarm events are recorded in an event memory.