About Keysight Switches with 89600 VSA Software

The 89600 VSA software supports the following Keysight switch models:

Summary table of supported Keysight switches:

Model	Number of Ports	Expandable to 64 Ports*	Reference Path (for Offset Calculations)	VSA-supported Switch Dimensions
L8990A-016	32	Y	N	1x32
L8990A-01A	32	Y	Y	2x32
L8990A-01H	32	N	n/a	1x32 1x64 2x64

*with L8990A-01H switch used as an expansion module.

Using a Switch

The VSA software supports switching hardware and Sequential Input Channel Acquisition for measurements that require more input channels than the signal analysis hardware can support.

Select a switch configuration to use your connected switch hardware (see Selecting a Switch).
Use the Sequential Input Configuration utility (Utilities > Custom Solutions > Sequential Input Config...) to create a custom input channel configuration based on your selected switch configuration, number of DUT Device under Test: An acronym used to describe some type of electrical apparatus connected to test instrumentation. The apparatus can range from a single component to a complex subsystem such as a mobile phone, base station or MSC. channels, number of analyzer channels, sequential phase/time tracking, and other settings.