A matrix is the most versatile switch topology. It is made up of M rows by N columns (M x N) that can connect any input to any output. With a matrix switching system, you can connect several instruments to various test points on a unit under test (UUT). This capability can eliminate your need to duplicate instruments and thus reduce your cost to test.
To view the complete line of NI matrix switches, visit ni.com/switches
Matrix modules can also serve as building blocks for creating larger configurations that are well beyond the size of a single module. To expand the number of rows in a matrix, you must connect the columns of the modules. To expand the number of columns in a matrix, you must connect the rows of the modules. Let's take a look at how we can expand a switching system to create a 16x128 matrix.