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Question:

The newly installed elevator camera, the elevator starts the screen will have a lot of interference, and will bring the entire monitor with interference.

And then use RJ11 - duckbill jumper to 110 patch panels, is this understanding right? More

Answer:

Look at the wire there is no shield, then that is the ground line.
Single frequency cable shielding, you can shield the outside interference. There is no shield of the line, the temporary use can be, and the length can not be too long.
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