Product picture - Meridian Technologies DigiFlex DT-4V1K 1K-2 Digital 4-Channel Video Multiplexer with 1-Channel Full Duplex RS-485 Transmitter Card Meridian, Technologies, DigiFlex, DT-4V1K, 1K-2, Digital, 4-Channel, Video, Multiplexer, with, 1-Channel, Full, Duplex, RS-485, Transmitter, Card Click the image to close this page