HP 34970A

Combining Matrices
You can combine two or more matrix switches to provide more complex
switching. For example, the HP 34904A provides a 4-row by 8-column
matrix. You can combine two of these modules as either a 4-row by
16-column matrix or an 8-row by 8-column matrix. An 8x8 matrix is
shown below.
8 Rows
8 Columns
Row 1
Row 4
Matrix Module 1
Col 1 Col 8
Row 1
Row 4
Matrix Module 2
Col 1
Col 8
Module Reference
8
Chapter 8 Tutorial
Matrix Switching
389