I have Extreme CCTV WZ16 compact camera. According to manual it accepts 12V DC or 24V AC. It came with 12V DC power supply. Everything works until I connect 75' CCTV Siamese cable (Power / Video). I have checked power from the other side of the cable and its drops from 12 to 11…11.5 V DC.
Is it common thing that the power drops that much at longer cables?
Camera has regular CCTV power socket (2.1mm) which have a polarity. Looks like camera accepts 24V AC but AC doesn’t have any polarity! How technically use that camera with DC power?
Is that possible to use same power socket for 12V DC or 24V AC?
What is the better way to deal with that problem?
