Ribbon Cable I/O Connector Block—The CB-100 includes either an R1005050 or NB5 ribbon cable assembly and two connector blocks with 50 screw terminals each. You can use this CB-100 to connect external signals to compatible NI data acquisition hardware that use a 100-pin female DSUB connector such as PXI Digital I/O Modules, Multifunction I/O Boards, and more.