Matrix Expansion

To expand the matrix of a PXI-2501/2503, directly connect wire from one terminal block to the other using the NI TB-2606 terminal block. Each PXI-2501/2503 can operate as a 4×6 matrix. To form a 4×12 matrix, use two PXI-2501/2503 modules and connect all the rows from both TB-2606 terminal blocks.

To form a 12×6 matrix, you need three PXI-2501/2503 modules with three TB-2606 terminal blocks. Connect all the columns from all three terminal blocks. Refer to Application Note 174 at ni.com/zone for additional information.

Note  The analog bus connectors cannot be used to expand a matrix.