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Answer
1. The HD video terminal and camera are not connected correctly.
2. The input and output settings on the HD video terminal are incorrect.
3. The HD video terminal does not support the camera's video format.
4. The display does not support the video output format set on the HD video
terminal.
Question
Why does the display fail to display any video after the camera has worked for a
period?
Answer
Check the camera's working environment. For example, check whether the
cables are connected securely, whether the voltage is stable, and whether heat is
dissipated properly.
Question
Why is the camera video displayed unclearly or why cannot the camera
automatically adjust its focus after the camera is powered on?
Answer
The lens surface is not clean, with dust, fingerprint, or mist on it.
The camera is not in autofocus mode.
To set the camera to autofocus mode, perform the following operations:
Press
remote control interface, select Adjust Focus, use the direction keys to select
on the remote control to set the camera to autofocus mode.
The distance between the object and the camera is less than 0.7 meters, or the
camera shooting angle is improperly set.
Question
Do the cameras support daisy chain cascade control? If daisy chain cascade
control is supported, how are the cameras connected and controlled? How are the
camera address codes set? Why cannot the cameras be controlled after they are
connected?
Answer
The Huawei VPC620 and VPC600 cameras support the Video System Control
Architecture (VISCA) protocol and cascade control.
Connection method: Use a keyboard that supports the VISCA protocol to
connect the cameras. Connect the COM IN port of the first camera to the VISCA
keyboard. Then, connect the COM OUT port of the first camera to the COM IN
port of the second camera, the COM OUT port of the second camera to the COM
IN port of the third camera, and so on. A maximum of seven cameras can be
connected in this serial connection mode.
The VISCA protocol supports cascade control of a maximum of seven cameras.
The address codes are automatically negotiated and increase by 1 from the first
on the remote control to access the camera control page. On the
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