Fanuc A02B-0051-C543 OPTION Unit. The A02B0051C543 is a lathe operator panel normally fitted on early Fanuc 6 control systems. This panel sits between Fanuc’s option units which were like MC wiring boards that the MTM’s built and Fanuc’s own operator panels that they introduced under the FS0. This panel has a MPG built in and wafer switches. DNC have amassed over the years many parts such as this 2 axis option control / MC operator panel. Warranty is 180 days. Contact us for prices.