Flicks 0 Posted June 12, 2011 I was trying to move the CNB WCM-20VF bullet camera to another location, when I pullet too hard on the "bulged rubber connector" closer to the power and BNC leads. The male power lead (red) and the bnc connector (yellow) stick out of this "bulged rubber connector". I split open the rubber connector and found a small connection plate inside an insulated piece. This plate has only three connection points. The red power connector lead connects to one side of the plate and the yellow BNC connector connects to the other side. However, there is only one other connection point left, which is in the middle and I have a negative for the power and the braided shield of bnc still left to connect? Do the power negative and the braided shield connect together to one side of the plate and then from other side, these split out to connect to their respective plugs? I am wondering if the braided wire for the BNC and the DC negative connected to prevent some of ground loop interference. Please help if someone else has come across this? I feel bad as this camera was working out great, especially in the night with the intelligent IR. Thanks so much. Share this post Link to post Share on other sites
Soundy 1 Posted June 13, 2011 Yes, the power and video use a common ground. This is common in most 12VDC-powered cameras. No, this is not done to prevent ground loops - in fact, in some instances, it can be a culprit in creating ground loops. Share this post Link to post Share on other sites
Flicks 0 Posted June 13, 2011 Yes, the power and video use a common ground. This is common in most 12VDC-powered cameras. No, this is not done to prevent ground loops - in fact, in some instances, it can be a culprit in creating ground loops. Thanks Soundy. You are Da Man! I had made it work by splitting the ground (vdc) and the braided wire separately to their respective plugs. However, do you think I should connect these together as originally intended. More I looked at the plate, I got convinced that the negative for the vdc and the braided shield were connected together under the "bulged plastic sheath". You comments cemented my belief. I really liked the "noise free" picture during the day and especially in night with IR. I would like to return it to its original state, if possible. Please advice. Cheers. Share this post Link to post Share on other sites
