Can I Close Multiple Relays at the Same Time in a Multiplexer Switch Module?

Updated Aug 14, 2018

Reported In


  • PXIe-2525
  • PXI Multiplexer Switch Module

Issue Details

Is it possible to close multiple relays in a multiplexer module at the same time or can only one be closed at a time?


Multiplexer modules only allow for one input to be connected to multiple outputs at a time. If the module you are using supports a topology with banks, the module will support one relay per bank to be closed at a time.

For example, the PXIe-2525 is a Multi-bank Multiplexer module that supports configurations ranging from 1 bank 64x1 to 16 bank 4x1. The 16 bank configuration would allow for 16 relays to be closed at the same time since you are able to close one relay per bank while the 1 bank 64x1 configuration would allow for only 1 relay to be closed at a time.

Additional Information

To understand Switch topologies and the difference between Matrix and Multiplexer configurations more in depth, see the Understanding Switch Topologies white paper from our website.


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