Fanuc A02B-0236-C205 Detector Interface Module. DNC offer exchange and outright stock of SDU1 modules. This unit is the main control interface or slave to another SDU that controls all of the I/O on the machine tool. Has the main system connection board A20B-2100-0570 with F/O for HSSB back to the CNC. Supplied with 180 day warranty.