HTA-TTA111VR-1 Active Video Receiver BNC Male To 2 screw terminal adapter. video transceivers provide a highly balanced mode of video transmission. Five-position distance range switch to adjust transmission distance up to 2 km, which is immune to interference from these, and other sources of noise. Cable requirement: UTP, AC24V/DC12V dual power Transmit a full motion color or monochrome video signal and data signal Five position distance range switch to adjust transmission a full motion monochrome video signal up to 2400 meters, color video signal up to 1500 meters System is integrated with alarm sensor (PIR, Magnetic, etc.) or data (Pan, Tilt, Zoom) Built in transient protection and ground lifting, damaging voltage spike problems are eliminated AC24V/DC12V dual power for HTA-TTA111VR-1 model Red LED: power on/off for HTA-TTA111VR-1 model Power supply included