SIEMENS 6DD1661-0AB0 Description Description SIEMENS SIMADYN D COMMUNICATION MODULE CSH1 SINEC H1 INTERFACE F. 16-BIT TECHNOLOGY Related products SIEMENS 1FK7042-5AK71-1FB0 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FK7044-7AF71-1EG0 SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FK7011-5AK71-1TG3