Couplers & I/O modules: Item no. 753-652RS-232/485 Serial Interface1 of 4 RS-232/485 Serial InterfacePlease wait ...PU (SPU): 1 PieceAdd to shopping listGenerate DatasheetCompareAdd to Watchlist RS-232/485 Serial InterfacePlease wait ...PU (SPU): 1 PieceAdd to shopping listGenerate DatasheetCompareAdd to Watchlist