The V-VL2122-01 sends Audio, NTSC Video and Power over a single RG59 coax cable. Itworks with both color and B/W cameras and monitors. It is ideal for monitoring areas where no power is available to operate a camera.
On the monitor side, the viewer part of the unit uses 18 to 24VDC (depending on length of coax). This voltage will go across the coax cable and the unit will output 12VDC on the sender side. Both the sender unit and the monitor unit has BNC connectors for the audio and video inputs and outputs. The units measure 2 inches wideand 2.5 inches long each with screw holes for any permanent mounting application.