Mitsubishi QJ71C24N Description Description Mitsubishi PLC Q Series Serial communication module RS-232: 1 port, RS-422/485: 1 port Related products MITSUBISHI FR-A540-0.75K-EC Mitsubishi FX2N-16EX-ES/UL MITSUBISHI A985GOT-TBA-EU MITSUBISHI FX0-30MR-ES MITSUBISHI FR-A540-15K-EC MITSUBISHI A1SX81