Mitsubishi QJ71C24N-R4 Description Description Mitsubishi PLC Q Series Serial communication module RS422/RS485: 2 ports Related products Mitsubishi FX2N-48ER-DS MITSUBISHI FX1N-40MR-DS MITSUBISHI FR-PU04 MITSUBISHI A1ADP-SP MITSUBISHI FR-A540-0.75K-EC MITSUBISHI FR-A540-22K