01750311974 1750311974 Diebold Nixdorf DN200 PCBA CNTRL SAFE RMV4 The 1750311974 / 01750311974 Diebold Nixdorf PCBA CNTRL SAFE RMV4 is a Lower Controller Board used in the RMV4 cash recycling system. It is an electronic control component responsible for supporting the operation of the RMV4 safe and its related cash-handling functions. The part is listed in Diebold Nixdorf DN-series spare-parts references as PCBA CNTRL SAFE RMV4. Product Specifications Product Name PCBA CNTRL