Siemens 3-542-1142A Dump Board

Siemens 3-542-1142A Dump Board is a dedicated printed circuit board used in Cincinnati Milacron Acramatic 850SX CNC controls, where it serves as the system’s dump board within the Acramatic 850SX electronics stack. In typical configurations it is paired with the 3-542-1021A analog interface module, forming part of the control and diagnostics chain for 850SX installations. The part is described in repair catalogs and by distributors as the DUMP BOARD for Acramatic 850SX, with multiple listings identifying 3-542-1142A as the correct spare for legacy Cincinnati Milacron machines. The board is documented in the aftermarket repair ecosystem and is commonly sold as a used or refurbished item, with several suppliers listing it as discontinued by the manufacturer. Typical applications include legacy Cincinnati Milacron milling and turning centers that rely on the Acramatic 850SX control, where this PCB integrates into the control hardware set. When sourcing this part, verify exact compatibility with your Acramatic 850SX controller family and its associated modules to ensure proper pinout and signal interfacing.