shabxs 0 Posted March 10, 2010 please help me. I want to know which is the best way to power 32 cctv cameras which will be running an average distance of 60 m. also which coaxial cable is best for the least attenuation. I am really confused of the power drop as I have not done such a big project before..(around 70 to 80 metre). Please somebody help me Share this post Link to post Share on other sites
WRS_Mark 0 Posted March 10, 2010 60m distance isn't very far. I have used even cheap RG-59 on those kinds of short runs with never a problem. What is the longest run? 12VDC or 24VAC or both? Share this post Link to post Share on other sites
king-of-wit 0 Posted March 16, 2010 Are you using one power adapter for one camera? Or you are using one power adapter for many cameras? Normal dome camera require 12Vdc 110mA. Usually, 12Vdc 500mA power adapter is sufficient. For infrared camera, 12Vdc 1A power adapter is recommended. Measure the voltage and make sure that you still can get approximate 12Vdc at 60m point. Share this post Link to post Share on other sites
Soundy 1 Posted March 16, 2010 DON'T use individual power adapters with that many cameras, if for no other reason than the logistical nightmare of tangled wires and power bars necessary to support it all. A single 32-channel regulated 12V power supply with individually fused outputs is recommended... or if you can't find a 32-channel model, a pair of 16s will do. Something like this: http://www.altronix.com/index.php?pid=2&model_num=ALTV615DC416UL Share this post Link to post Share on other sites
hardwired 0 Posted March 16, 2010 DON'T use individual power adapters with that many cameras, if for no other reason than the logistical nightmare of tangled wires and power bars necessary to support it all. A single 32-channel regulated 12V power supply with individually fused outputs is recommended... or if you can't find a 32-channel model, a pair of 16s will do. Something like this: http://www.altronix.com/index.php?pid=2&model_num=ALTV615DC416UL I agree, that many wall warts will be an ugly mess.... But what about the likelihood (almost certainty) of ground loops with that many DC cameras? Anybody have a source for an individually isolated output DC power supply? Share this post Link to post Share on other sites
Soundy 1 Posted March 16, 2010 How about for 8-channel units then? Or just use dual-voltage cameras, and/or go all 24VAC, and avoid the problem altogether. Share this post Link to post Share on other sites
shabxs 0 Posted April 4, 2010 Thanks 4 all the suggestions... Really helpful.. I used 4 separate power supply one for a set of 8 cams Share this post Link to post Share on other sites
