jrcomputerdoc 0 Posted January 13, 2016 Hi I have a problem with a PTZ camera that I installed actually I installed two however I am not able to control one camera it is set correctly with correct address, I can control it sometimes but not always. The instruction on the pamphlet said that I need to install a terminal matching resistance to the farther camera, but the picture they show is very vague, I am not sure how to connect the resistor provided anyone has any Idea how to connect this resistor? I am suspecting is on the cable that connects to the camera 485 port. But not sure is one end to the positive and other to the negative or just on the positive end, any help or diagram will be appreciated. Share this post Link to post Share on other sites
jazzar 0 Posted March 12, 2016 usually there is a switch or a link to set the termination for the data on the camera unit. Share this post Link to post Share on other sites
survtech 0 Posted March 12, 2016 When daisy-chaining RS422/485 control for PTZs, best practice is to terminate the end of the chain while leaving termination "Off" on PTZs in the middle of the chain. However, unless you are daisy-chaining a boatload of PTZs, under most circumstances you can terminate all PTZs in the chain. Share this post Link to post Share on other sites
