Network Video Recorder (NVR) = Functionally similar to a DVR, a NVR also accepts IP camera inputs. NVRs can be software-based,…
NAS = Network attached storage device. When using an NVR, it is often not necessary to archive recorded video directly…
Multiplexor= A communications device that multiplexes (combines) several signals or camera feeds for transmission over a single medium. An example…
Motion Detection= Refers to the feature in some NVRs and DVRs to only record video if something in the image…
Megapixel = A unit equal to one million pixels. The higher the resolution, the more pixels in an image and…
Lux = Used more often than lumens when discussing security cameras, a lux is a unit of illumination. It measures…
Interlaced Scan = The process whereby each frame of a picture is created by first scanning half of the lines…
Housing= Special covering or container to protect a camera from extreme temperatures or weather conditions. Some housings are manufacturer specific.…
Half Duplex = This is an audio convention. A half-duplex system provides for communication in both directions, but only one…