Product picture - Meridian Technologies DigiFlex DT-1V4D 4D-2 Digitally-Encoded One-Channel Video with Four Full-Duplex Rs-232 Data Channels Transmitter Meridian, Technologies, DigiFlex, DT-1V4D, 4D-2, Digitally-Encoded, One-Channel, Video, with, Four, Full-Duplex, Rs-232, Data, Channels, Transmitter Click the image to close this page