Cincinnati Milacron 4-531-4020A Circuit Board

The 4-531-4020A is a legacy control and interface circuit board used in Cincinnati Milacron CNC and PLC systems. It handles signal processing, logic control, and communication with machine components via a backplane slot in industrial controller assemblies. Model Number: 4-531-4020A Function: Logic interface and signal processing circuit board Compatibility: Cincinnati Milacron CNC and PLC systems (Acramatic, Big Blue, 850/900 series) Board Type: Multilayer PCB with discrete and IC components Connector: Gold-finger edge connector for rack backplane integration Key Components: TTL logic ICs, analog signal components, capacitors, resistors, inductors Power Supply: Provided via CNC rack backplane Status Indicators: No onboard LEDs (passive visual diagnostics) Dimensions: Approx. 150 mm × 100 mm Weight: Approx. 0.42 lb (0.19 kg) Mounting: Rack-mounted in control chassis Construction: FR4 substrate, wave soldered through-hole components Revision: Commonly found as Rev A or B Please review pictures carefully and let us know if you have any questions!