Barber-Colman A-11474 Operator Panel Control Board is the MACO IV operator panel interface for Barber-Colman MACO 4, 5, and 6 controller systems. As the dedicated operator panel control board in MACO IV configurations, it connects the operator interface to the MACO 4–6 controller rack to relay inputs and control signals. Part number A-11474; weight: 2 lb. Typically sourced for repairs or replacement in MACO IV installations, this board restores operator-panel functionality within Barber-Colman MACO 4–6 systems.
