jeffb 0 Posted February 10, 2009 I recently replaced an old VHS and multiplexer setup with a dvr with gv1480 Geovision card. It has 3 phillips/bosch g3 envirodome PTZ cameras. I cannot get the PTZ controls from Geo software to work. The old unit had a small control pad that plugged into the multiplexer fro PTZ control. The cameras do not use rs485, rather the manual that i found online for camera says it uses rs232 or bi-phase. I bought a GV-Net card, but I don't think that was what I needed. I want to be able to move these cameras by any means necessary, I am fine with putting just old control pad on to move cameras with it, however, I don't want to have to put multiplexer back on, it is too big to leave there. Is there a way to use just the control pad?? Some other type controller? Some way to make Geo software control with rs232?? Share this post Link to post Share on other sites
jeromephone 6 Posted February 18, 2009 We ran into this and were able to get a protocol changer that turned the bosch to pelco and then we controlled with the geo vision. I will try and remember who made it I think they were out of MI and it was around 150.00 or so. Share this post Link to post Share on other sites
cctv_down_under 0 Posted February 25, 2009 You can use 485, you just need a 232 to 485 converter....most newer Bosch Domes can be set to Pelco Protocol so that you could use a standard pelco controller or the DVR if you have one....you could buy a simple Biphase controller. Share this post Link to post Share on other sites
