What Will Happen if Shorted the TX Pin NI PXI-8431/16

Updated Dec 29, 2025

Reported In

Hardware

  • PXIe-8431/16

Issue Details

For instance, with NI Serial Hardware such as the NI PXI-8431/16, if the TX+ and TX– lines are shorted together, or if either line is accidentally shorted to ground on one of the ports, will this cause damage to that specific port? Additionally, could such a fault also affect the remaining 15 ports? I am trying to determine whether an accidental short could lead to failure of the entire card or just the affected port.

Solution

The PXI-8431/16 includes built-in protection features. However, intentionally creating a short circuit is not recommended and is not covered under warranty. Therefore, you should not short TX+ and TX– together or connect either line to ground on any port of the NI PXI-8431/16.