[Cause]
It may be the following.
1. The power of the camera may be disconnected through the sensor exchange function.
2. It may be that the camera cable has broken off or that the camera has malfunctioned.
[Countermeasure]
Implement the following policy responses.
1. Implement sensor connection instructions to supply electricity to cameras.
2. Replacement of camera cables.
3. Replace the CCU. (For R-30iB, R-30iB Mate)
4. Replace the camera.