Matrix
A matrix is one of the most flexible switching configurations. Unlike a multiplexer, a matrix can connect multiple inputs to multiple outputs organized as columns and rows. You can connect any column to any number of rows and any row to any number of columns. At each intersection of a row and column, there is a switch. When the switch is closed, the row is connected to the column.
Matrix size is often described as M rows by N columns (M × N). The following figure illustrates a 1-wire, 2 × 4 matrix.
