Matrix Expansion

To expand columns or rows with the NI SCXI-1127/1128 configured as a 4×8 matrix, use matrix expansion cables. Each cable can route four pairs of signals from one module to the other. These cables connect directly into the NI SCXI-1332. To form an 8×8 matrix with two NI SCXI-1127/1128 modules, connect all eight columns from both NI SCXI-1127/1128 modules. Connect one cable to J2 and one cable to J3 on both NI SCXI-1332 terminal blocks.

To form a 4×16 matrix with two NI SCXI-1127/1128s, connect all four rows from both NI SCXI-1127/1128 modules. Connect one cable to J4 on both NI SCXI-1332 terminal blocks. Refer to Application Note 174 at ni.com/zone for additional information.