The encoding card will output a Motion JPEG stream if the device works normally. When there is no video signal input, it is a blue screen. Correspond to the no signal state of "Video signal lock" in the above "Video and audio signal source status" (H.264 code stream output blue screen); When there is video signal connected, it will display the current video signal in the real-time screen, "Video Signal Lock" will display the locked state, and the current video signal format will be displayed in the "Video Format".
NOTE: If the source is connected, but the screen is still blue or abnormal, please check the input video format or cable connection.