22 Device Description WAGO-I/O-SYSTEM 750750-652 Serial Interface RS-232 / RS-485ManualVersion 1.4.03.2.3 CAGE CLAMP® ConnectorsUse shielded signal lines!Only use shielded signal lines for analog signals and I/O modules which areequipped with shield clamps. Only then can you ensure that the accuracy andinterference immunity specified for the respective I/O module can be achievedeven in the presence of interference acting on the signal cable.Figure 4: CAGE CLAMP ® ConnectorsTable 7: Legend for Figure “CAGE CLAMP ® Connectors”Designation Connector FunctionD0 1 RTS (RS-232)Z / TxD+ (RS-485/RS-422)D1 5 TxD (RS-232)Y / TxD- (RS-485/RS-422)D2 2 CTS (RS-232)B / RxD+ (RS-485/RS-422)D3 6 RxD (RS-232)A / RxD- (RS-485/RS-422)Common(ground)3 Common (ground)7 Common (ground)Shield(screen)4 Shield (screen)8 Shield (screen)
