80 List of Tables WAGO-I/O-SYSTEM 750750-652 Serial Interface RS-232 / RS-485ManualVersion 1.4.0Table 46: Description of Marking Example for Approved Ex i I/O ModulesAccording to ATEX and IECEx .................................................................. 64Table 47: Description of Marking Example for Approved I/O ModulesAccording to NEC 500................................................................................. 66Table 48: Configuration ........................................................................................ 73Table 49: Configuration ........................................................................................ 73Table 50: Specific Module / Channel Parameters for 75x-652 ............................. 75Table 51: General Module / Channel Parameters ................................................. 77Table 52: General Module / Channel Parameters ................................................. 77