User`s guide

Introduction to the 34980A 1
Agilent 34980A Mainframe User’s Guide 9
Matrix Switching
A matrix switch connects multiple inputs to multiple outputs and
therefore offers more switching flexibility than a multiplexer. Use a
matrix for switching low- frequency (less than 30 MHz) signals only. A
matrix is arranged in rows and columns. For example, a simple 3x3
matrix could be used to connect three sources to three test points as
shown below.
In a matrix switch configuration, any one of the signal sources can be
connected to any one of the test inputs. Be aware that with a matrix, it
is possible to connect more than one source at the same time. Therefore,
it is important to make sure that dangerous or unwanted conditions are
not created by these connections.
General Purpose Switching
You can use General Purpose (GP) switches to control power connections
to your DUTs, control status indicators, or actuate external power relays
or solenoids. The GP switches for the 34980A are available in two switch
configurations as shown below.
Form C switches are also called Single- Pole, Double- Throw (SPDT) and
contain a normally- open (NO) and a normally- closed (NC) contact. Form
A switches are also called Single- Pole, Single- Throw (SPST) and contain
a normally open (NO) contact, which is either open or closed.
Test 1 Test 2
Test 3
Source 1
Source 2
Source 3
Form C
Form A