| 摘要 |
PURPOSE:To send a video signal in time division by connecting plural cameras in cascade in the CCTV monitor system. CONSTITUTION:A synchronized camera 3 and synchronizing cameras 1, 2 each having a video signal changeover switch are connected in cascade by coaxial cables 6, 7, and connected to a monitor 5 through coaxial cable 8 and a camera control unit 4. A code signal to select and control a camera is outputted by the camera control unit 4 to control the changeover switch and a video signal of each camera is selected in a required timing and sent in time division.
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