akrh125 0 Posted April 5, 2011 I need some help with a PV-300HI camera that I bought recently and am having some trouble with. The issue that I am having is with the zoom function through my Gadspot DVR. Before attempting to actually install the camera in its planned location, I tested it in the room where the DVR is located. I used a short 6ft CAT5E cable to connect the Red & Black wires on the camera to the TX+/TX- connectors on the back of the DVR. This seemed to work fine and I was able to control the zoom and focus through the DVR. I then tried to connect it using the 150 ft CAT5E cable that is going to be used for the real installation. I put an RJ45 connector on the Black & Red wires at the camera and then used an RJ45 coupler to connect the camera to the 150 ft CAT5E cable. I was no longer able to get the zoom and focus features to work through the DVR. I then removed the 150 ft cable and the RJ45 connector and connected the Red & Black wires from the camera directly into the back of the DVR (no CAT5 cables at all). I still cannot get the zoom and focus features to operate at all. I am at a loss as to what to do now. Any recommendations or help would be greatly appreciated. Share this post Link to post Share on other sites
morem_uk 0 Posted April 13, 2011 does it still work with the 6ft cable? make sure the cable is connected correctly, i.e Tx+ from DVr connected to Rx+ on the Camera and TX- to Rx- check if any settings have been changed on the dvr eg: protocol. hope this helps Share this post Link to post Share on other sites