Do NI Ethernet Interface Modules Support Auto Sensing?

Updated Dec 19, 2023

Reported In


  • PXI-8231
  • PXI-8232
  • PXIe-8234
  • PXIe-8245

Issue Details

Do I need to use crossover cables for NI Ethernet Interface Modules? Do the modules support Auto Sensing?


Auto Sensing, or Auto MDI-X (Medium Dependent Interface Crossover) automatically detects the required cable connection type and configures the connection appropriately, removing the need for crossover cables to interconnect switches or connecting PCs peer-to-peer.
All NI Ethernet Interface Modules with copper PHYs (PXI-8231, PXI-8232, PXIe-8234 and PXIe-8245) support Auto MDI-X.
PXIe-8238 and PXIe-8240 both use SFP modules, so it depends on what the module you are using.