Fanuc A20B-1004-0270 Backplane. This 13 port main connect PCB is a series 15 control motherboard which acts as a master PCB to the entire Fanuc 15 system. The board connects the BASE0, BASE1, BASE2, Graphics, Axis board(s) too allow from 2-8 axis control on the smaller and simpler FS-15 controls, up to seriously large configurations. DNC have currently run four Fanuc 15 control system test rigs, a run of the mill 15T and 15M, a 15TF with the conversational FAPT and a 15iM stand alone test rig built by GE Fanuc HQ before their disbandment. This system 15 backplane is available from DNC today either as exchange, or testing and repair can be carried out on this part, or the other Fanuc 15 parts such as the Axis and memory cards, etc.