Surveillance cameras can be divided into analog cameras and digital cameras according to the type of data. Today, the basic maintenance knowledge of these two surveillance cameras (precautions for installation of surveillance cameras) is shared with everyone!
First, the analog camera maintenance method:
1. First, check whether the bnc connector is open. Check whether the bnc connector of the camera to the splitter, the splitter to the hard disk recorder, and the splitter to the matrix are normal. If the bnc connector is not soldered during installation, it will be opened after a while. Check if the video line has an open circuit.
2. Check if the power supply to all parts of the camera is normal.
3. Check whether the bnc interface of the DVR, splitter, and matrix is ​​normal by using the method of swapping. Simply put, there is no image on the image channel jumper. If there is no image, it indicates that The channel is bad.
Second, digital analog camera maintenance methods:
1. First look at the LAN interface indicator on the switch is not lit. There are generally 3 situations:
The first type: The indicator light is on and flashes, indicating that the signal is normal.
The second type: The indicator light is on, but it is not blinking, indicating that there is a problem with the camera. Under normal circumstances, the camera will be disconnected for a while, and then Chongqing will be a new start.
The third type: the indicator light is not bright, first check whether the crystal head RJ45 is good, including the switch and the camera must be checked, and then check the camera power supply is not normal, the network cable has no open circuit.
2. Check whether the host can work normally. After entering the system, see if the camera IP address of the channel with no image can be found. If not, there are no problems with the switch and the camera according to the previous method.
3. Restart the camera, switch, and host. Normally, as long as you can ensure that it is not hardware damage, you can solve the problem after rebooting.
4. If you are using a fiber optic transceiver, check to see if the optical transceivers at both ends are working properly.
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