edselrt 0 Posted October 7, 2011 This is for an existing installation. 48 camera system. I want to replace a camera with a CNB VCM model. The existing camera system uses baluns but I believe those would not fit in a VCM casing. I am thinking of replacing the balun from a different manufacturer. I dont want to replace the baluns from the headend. Will this work? or does baluns work in pairs only? Share this post Link to post Share on other sites
Soundy 1 Posted October 7, 2011 I've never had a problem mixing-and-matching balun brands and styles. Our last job, we used GEM BLN-MTL2 baluns at the cameras (they fit nicely inside the VCM back-box): At the head-end, we used EV16P-VPS rack-mount balun/power supply units: Share this post Link to post Share on other sites
edselrt 0 Posted October 7, 2011 thanks Matt, I've used that baluns from GEM and it fits nicely inside a VCM casing Share this post Link to post Share on other sites
Soundy 1 Posted October 7, 2011 I actually find them great when mounting a VCM on the ceiling, because the camera's BNC and the balun together, wedge nice and tight between the side of the back-box and the two mounting studs, thus holding the wires in place while I fiddle with getting the rest of the camera body aligned. Share this post Link to post Share on other sites
Birdman Adam 0 Posted October 7, 2011 I wish I had bought those GEMs when I put up some VCMs... We had to use a separate small electrical box to hold the connections, as the baluns were pretty fat. Should be absolutely no problem mixing baluns as they are all almost the same on the inside. Share this post Link to post Share on other sites
nDAlk90 0 Posted December 29, 2011 Are these the GEM baluns? http://www.ebay.com/itm/160706448332 http://www.ebay.com/itm/160706460210 Share this post Link to post Share on other sites
Soundy 1 Posted December 29, 2011 They look like the same unit... whether they're made by GEM, or if GEM OEMs from someone else, or someone just copied the design, I can't say... Share this post Link to post Share on other sites
Numb-nuts 1 Posted December 29, 2011 I almost always use 4,8,16, way baluns at the DVR end and split up pairs of pigtail baluns at the camera ends. Different manufacturers, but never had an issue. ( just you wait until the next install smartypants) Share this post Link to post Share on other sites
joseph.chen0312 0 Posted December 29, 2011 www.sct.com.tw Share this post Link to post Share on other sites
Numb-nuts 1 Posted December 30, 2011 http://www.sct.com.tw see you at IFSEC Share this post Link to post Share on other sites
joseph.chen0312 0 Posted January 2, 2012 http://www.sct.com.tw see you at IFSEC Hello Indeed I am not sales repsentavive for this company, but they are the the pregiuos one in here Taiwan to supply reall good stuff. If you are interesting I would like refer you to touch the key man. Share this post Link to post Share on other sites
