Fanuc A16B-3200-0031 21B Input Output PCB. Normally fitted upon B generation 21 controls, such as the 21-TB, 21-MB control systems. This I/O card is 48 inputs / 32 outputs and also has a built on A20B-1005-0420 or A20B-1005-0421 power supply unit. The power supply unit is sold separately from the I/O board.
DNC offer exchange (stock permitting), clean and testing facilities for diagnosis, as well some repair capability for these boards dependent on fault(s).