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Difference in Channel Isolations for DSUB and Spring Terminal Modules

Updated Jan 4, 2018

Reported In

Hardware

  • NI-9207
  • NI-9208
  • NI-9209
  • NI-9425
  • NI-9476
  • NI-9205
  • NI-9213
  • NI-9216
  • NI-9220
  • NI-9226
  • NI-9264
  • NI-9375

Issue Details

I'm looking at a module that has DSUB and spring terminal options with differing isolation voltages. Why are the isolation voltages different?

Solution

The DSUB module will have lower isolation voltages because the module's isolation voltages are limited by the style of the connector. The spring terminal version will have higher isolation voltages because it isn't impeded by the DSUB connector. 

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