Once it has been determined that parallel conductors are available between the horizontal cross-connect and the main cross-connect, and the conductors have been tested for suitability (see “Using a Parallel Network for a Video Camera,†SDM, July 2005, p. 88 or www.sdmmag.com), then security technicians can begin the installation of network cameras on a parallel network, connected to available UTP backbone pairs.
The horizontal UTP is pulled from the camera location to the telecommunications closet, with male RJ-45 plugs installed on each end. If only one camera is being connected to that particular horizontal cross-connect, its cable can be plugged directly into the parallel backbone UTP for data transport to the main room. If more than one camera, video server, or IP-addressed security device is being connected in one closet, the installing company would place a hub or switch with sufficient port quantity in the closet. This device requires AC power, and its transformer would preferably be connected to a UPS.