Fanuc A20B-3300-0120 CNC / Robot Servo Controller PCB. This FSSB servo card with part number A20B33000120 is a 2-4 axis controller utilising the FSSB (Fanuc serial servo bus) over fibre optic interface system. This allows model A generation 16i and 18i control systems to run 2, 3 or 4 axes and for the 21i A controls to run from 2-4 axis. This FSSB module is a hi-speed servo control module.
DNC currently have these FSSB 6 axis servo controller PCB in stock.