Double metria would be for the R485 connection ???
I will try to send a pair of UTP for + and another for -, I really did not know if in long distances tmb there is lost in that. What q caught my attention was that he went perfect a few hours and dsp freeze the image.
I told them to check the equipment and disconnected the pins deo R485 therefore had no movement, many thanks for the answers, I hope to collaborate with my knowledge as you did with me.
Thank you