Screw Terminal, Ribbon, 8x64, 1-Wire PXI Module Matrix Terminal Block—The TB-2641 provides the necessary routing to configure the PXI-2532 or PXIe-2532 PXI Matrix Switch Module as a 2-wire 4x128 matrix. You can directly connect the TB-2641 to the front panel I/O connectors of the PXI-2532 or PXIe-2532. This terminal block includes ribbon cable headers to connect signals to the PXI Matrix Switch Module. The TB-2641 also provides optional isolation resistors to protect the reed relays from capacitive loads.