Screw Terminal, Ribbon, 16x32, 1-Wire PXI Module Matrix Terminal Block—The TB-2642B provides the necessary routing to configure the PXI-2532B or PXIe-2532B PXI Matrix Switch Module as a 1-wire 16x32 matrix. You can directly connect the TB-2642B to the front panel I/O connectors of the PXI-2532B or PXIe-2532B. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2642B also provides optional isolation resistors to protect the reed relays from capacitive loads.