mogolman 0 Posted July 20, 2012 Hi, I have installed my first cctv cameras a while ago, and I am now streaming them via Milestone Xprotect GO. When one of the 2 cameras switches to low light (IR on), the motion detection plugin hammers me with notification emails, because it gets this: This is intermittent, it can happen from several times a minute, to not at all in hours The camera is located 220 m away from the dvr, it is 12V 600mW, and I am powering it via ethernet (baluns) feeding it 15V. Can it be that I need more voltage? According to a spreadsheet I found, my wire losses are as follows: Calculate Wire Losses Enter Device Load in Watts 1 Device Watts Enter Starting Line Voltage 16 Line Voltage Enter number of pairs in Parallel 2 Pairs Enter Wire Run Length in Feet 900 Feet Enter Wire Gauge AWG 24 AWG Ohms Per Foot 0,02567 Calculated Ohms Wire Run 23,10 Ohms Calculated Amps on Line 0,04 A Calculated IR (Watts lost) Lost on line in Percentage 5,4 Keep Below 10% Thanks for any help. Share this post Link to post Share on other sites
tomcctv 190 Posted July 20, 2012 hi. i think both power and distance is your problem. 720 feet (220m) can you list your camera and balun type used ? do you have local power at the camera ? Share this post Link to post Share on other sites
mike_va 0 Posted July 20, 2012 It seems unlikely the camera is 600mW that would be 50mA. Probably more in the range of 3-6W. My cameras with the least draw with no IR are around 100mA or 1.2W. Share this post Link to post Share on other sites
mogolman 0 Posted August 7, 2012 I guess I am back a little late, but what actually happens is that the stream gets corrupted for 1 sec. The camera still sends the signal to the dvr, it is the dvr (probably) that messes up the encoding to the PC. Any ideas around that? This is a sample video from Milestone xprotect GO. The DVR at the same time shows no black images. http://goo.gl/YwHGQ Share this post Link to post Share on other sites
