Product picture - Meridian Technologies DigiFlex DR-4V1A2F 2F-2 4-Channel Video Multiplexer with 2-Channel Bidirectional RS-422, Manchester, or Bi-Phase Data, & 1-Channel Balanced Audio System Receiver Card Meridian, Technologies, DigiFlex, DR-4V1A2F, 2F-2, 4-Channel, Video, Multiplexer, with, 2-Channel, Bidirectional, RS-422, Manchester, or, Bi-Phase, Data, &, 1-Channel, Balanced, Audio, System, Receiver, Card Click the image to close this page