gman 0 Posted April 10, 2011 Hey everyone, I'm working on replacing a camera with a CNB. The current camera is connected with a siamese cable which has a female connector on the power. After reading through some of the posts, it sounds like I can use the existing power supply by cutting off the female adapter and connecting the wires to the green adapter. Does this sound right? Thanks again, everyone here has been a tremendous help. Share this post Link to post Share on other sites
tomcctv 187 Posted April 10, 2011 Hey everyone, I'm working on replacing a camera with a CNB. The current camera is connected with a siamese cable which has a female connector on the power. After reading through some of the posts, it sounds like I can use the existing power supply by cutting off the female adapter and connecting the wires to the green adapter. Does this sound right? Thanks again, everyone here has been a tremendous help. Hi gman. yes thats the way most would do it. Share this post Link to post Share on other sites
puzungo 0 Posted April 10, 2011 ´pardon my ignorance.. but what is a cnb camera??? Share this post Link to post Share on other sites
Soundy 1 Posted April 10, 2011 http://www.cnbtec.com Share this post Link to post Share on other sites
Birdman Adam 0 Posted April 10, 2011 Yup, that's perfectly fine. BTW if you get confused about polarity, there is no + & - (even when feeding it DC). Share this post Link to post Share on other sites
rory 0 Posted April 10, 2011 BTW if you get confused about polarity, there is no + & - (even when feeding it DC). Thats only true for some of the CNB cameras .. without them posting the model number its best they use polarity. Share this post Link to post Share on other sites
Soundy 1 Posted April 10, 2011 If polarity matters, it will have polarity markings... if there are no markings, then it doesn't matter. Share this post Link to post Share on other sites
rory 0 Posted April 11, 2011 If polarity matters, it will have polarity markings... if there are no markings, then it doesn't matter. Some have the plug, not the green connector. Share this post Link to post Share on other sites
Soundy 1 Posted April 11, 2011 If polarity matters, it will have polarity markings... if there are no markings, then it doesn't matter. Some have the plug, not the green connector. Which, as I recall, DO have a flag on them with the polarity indicated... Share this post Link to post Share on other sites
rory 0 Posted April 11, 2011 Which, as I recall, DO have a flag on them with the polarity indicated... I believe you are correct, they also have red and black leads, just pointing out to the OP and Adam that with some of the CNBs polarity does matter. Share this post Link to post Share on other sites
Soundy 1 Posted April 11, 2011 Right, except the OP states in the first post, this camera has the "green adapter", which would be the design used on the dual-voltage cameras. Share this post Link to post Share on other sites
bpzle 0 Posted April 11, 2011 Symantics aside... Generally speaking, DC only cameras are polarity sensative and can be fried if the polarity is reversed. I know, I've done it... When it doubt, use a volt meter. Share this post Link to post Share on other sites
rory 0 Posted April 11, 2011 Right, except the OP states in the first post, this camera has the "green adapter", which would be the design used on the dual-voltage cameras. Some of the CNB 12VDC domes also come with the green connector, it has a little + sign on one side of it. Share this post Link to post Share on other sites
Soundy 1 Posted April 11, 2011 Right, except the OP states in the first post, this camera has the "green adapter", which would be the design used on the dual-voltage cameras. Some of the CNB 12VDC domes also come with the green connector, it has a little + sign on one side of it. Which goes back to my previous statement: if polarity matters, the polarity will be marked. Share this post Link to post Share on other sites
Tailbone215 0 Posted April 11, 2011 Which goes back to my previous statement: if polarity matters, the polarity will be marked. WOW! Sounds like them thar CNB dohickies are so way overcomplicated for the common man that we have to write a novel as epic as "War and Peace". Thank god the outlet stores sell Lorex as everything is plug n play... :>) Share this post Link to post Share on other sites
gman 0 Posted April 11, 2011 Wow, I didn't know it would be this complicated. The model is a VBM-24VF. The green adapter has no plus or any other indicator of polarity that I can see. The wires are wrapped together so no help there. It does say 240AC, so I'm assuming it's AC. Share this post Link to post Share on other sites
tomcctv 187 Posted April 11, 2011 Wow, I didn't know it would be this complicated. The model is a VBM-24VF. The green adapter has no plus or any other indicator of polarity that I can see. The wires are wrapped together so no help there. It does say 240AC, so I'm assuming it's AC. then you can put red and black into any side of the little green plug Share this post Link to post Share on other sites
Soundy 1 Posted April 11, 2011 I believe that's actually 24 VAC - you DON'T want to be hooking up 240V to your camera! (Well, unless you really enjoy fireworks...) But as Tom says, there is no polarity - the camera will accept 12VDC or 24VAC (if memory serves, it will actually take anything from about 10V to 30V, AC or DC). It's really not that complicated: like I said before, 99% of the time, if polarity matters, there will be polarity markings; if there are no markings, then it probably doesn't matter. Simple. Share this post Link to post Share on other sites
