42 Connect Devices WAGO-I/O-SYSTEM 750750-652 Serial Interface RS-232 / RS-485Manual1.2.0Figure 11: Connecting a conductor to a CAGE CLAMP ®Pos : 78 /All e Seri en (Allgemei ne Module)/Ü berschriften für alle Serien/Ansc hließ en/Ans chl uss beis piel e - Ü berschrift 2 @ 4\mod_1240996036328_21.doc x @ 32010 @ 2 @ 17.2 Connection ExamplesPos : 79 /Serie 750 ( WAGO-I/O-SYST EM)/Ans chli eßen/Anschl uss beispi ele/Sonderkl emmen/Ansc hluss beispi ele 750-0652_Datenaustausc h @ 13\mod_1352292796190_21.doc x @ 105682 @ 33333 @ 17.2.1 RS-232 Operating ModeFigure 12: Point-to-point connection operating mode RS-232 with RTS/CTS data flow controlIn the RS-232 operating mode (point-to-point connection), terminal resistors arenot necessary.The cable length can be up to 40 m due to the maximum allowable cablecapacitance of 1500 pF.By using the data flow control software (XON/XOFF), as well as completerenunciation of flow control, the RTS-to-CTS line is not necessary.
