The JLG joystick controller for boom lift 40H 80H 80HX 80HX+6 86HX 60H 50HT is a control/interface board from JLG. It handles signal processing, communication, or logic functions as part of a PLC or machine control system, interfacing between the processor and connected I/O or peripherals. It is commonly in OEM equipment and MRO replacement for industrial control systems.
