SIEMENS 6AV3971-1NA03-0CA0 Description Description SIEMENS MEMORY SUBMODULE FOR OP20 WITH FIRMWARE FOR AS511, FAP, L1, 256 KBYTES Related products SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FN1910-0AA20-3AA0 SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FT5066-0AC01-2-Z SIEMENS 1FT5066-1AF71-4AA0
