A20B-1004-0570
Fanuc A20B-1004-0570 is 4-slot backplane PCB for large CNC’s. Belonging to the Fanuc series 16A and 18A control systems. This board is inserted into the yellow plastic frame which holds upto 4 seperate boards in place to connect the control system together. The power supply unit is normally in the right slot, with MAIN next from, then OPT1/OPT2/OPT3 board dependent on the system configuration and the I/O if not connected via I/O Link.
