6DD1661-0AD0 - Siemens
*** SPARE PART*** SIMATIC TDC COMMUNICATION MODULE CP50M0 WITH 8 MBYTE BUFFER MEMORY, UP TO 2 MPI INTERFACES, UP TO 2 PROFIBUS DP INTERFACES USED AS A DP MASTER WITH CONFIGURATION SW "COM PROFIBUS" (PLEASE NOT COMPATIPLE VERSIONS OF OPERATOR SYSTEM)