Product picture - Meridian Technologies DigiFlex DR-12F-SFP 12-Channel RS-422 Data Unidirectional System Receiver Card with SFP Connector Meridian, Technologies, DigiFlex, DR-12F-SFP, 12-Channel, RS-422, Data, Unidirectional, System, Receiver, Card, with, SFP, Connector Click the image to close this page