BJCIT 0 Posted June 8, 2011 I have 3 Pelco PTZ cameras installed on a project and they are continuously going down. The video is still recording but you cannot use the PTZ. It seems as though the cameras are constantly losing comms with the joystick. I am told the the back box door assembly keeps going bad on the cameras but from everything else I hear these things rarely, if ever, fail. They are installed in a tent structure with metal frames. The cameras are mounted on the frames and the tent is grounded. The cameras are not. There is some heat associated with the cameras. We recorded about 130 degrees the other day on one with a laser thermometer. Could it be some kind of static discharge? So far in the past two months we have had all cameras repaired and 2 replaced for a total of 6 swap outs. Any ideas? Share this post Link to post Share on other sites
Soundy 1 Posted June 8, 2011 What model cameras are these? I've seen problems with backbox failures in some older Specta IIs... Share this post Link to post Share on other sites
survtech 0 Posted June 8, 2011 Except for cooling fans in Spectra II back boxes (Spectra III and IV moved the fan to the dome drive), back box failures are extremely rare. Comm problems tend to be related to cabling and/or the control system. It is possible that you have either incorrect cabling / termination or some other communications problem. What model PTZs and what are you using to control them? Share this post Link to post Share on other sites
BJCIT 0 Posted June 9, 2011 They are the Spectra IV series. We have this funky setup that I think may be part of the problem. The cameras are connected to an encoder on the brown/white pair of the cat5 cable then the orange/white goes to a data controller for the joysticks. Even though the cameras are IP they are sending an analog signal because the supplier said this was the only way they could get the cameras to communicate with the NVR. Share this post Link to post Share on other sites
