Datasheet

Operation and Features 2
Keysight U2751A User’s and Service Guide 37
Switch Control
A matrix switch connects multiple inputs to multiple outputs. A matrix is arranged
in rows and columns. For example, the U2751A is a 4×8 matrix that can be used to
connect four sources to eight test points as shown in Figure 2-1.
Any column can be connected to any row by activating the corresponding relay
that connects the column to the row as shown in Figure 2-1. Each cross-point
relay on this module has its own unique channel label representing the row and
column. For example, channel 302 represents the cross-point connection between
row 3 and column 2.
Be aware that it is possible to connect more than one source to the same point
with a matrix. It is vital to make sure that these connections do not create
dangerous or unwanted conditions.
Figure 2-1 Switch matrix concept
intersection shown represents channel 202
(Row 2, Column 2)
Note: Three-digit channel numbers are derived from
the intersection of the rows and columns, with the
last two digits representing the columns. The