Connecting Quarter Bridge Sensor to RJ50 Connector of PXIe-4339

Updated Jul 12, 2018

Reported In


  • PXIe-4339
  • TB-4339
  • RM-4339

Issue Details

How do I wire a quarter bridge strain gauge to the RJ50 connector?


After clarifying whether you have a Type I or Type II quarter bridge sensor (shown on pages 2-4 and 2-6 of the PXIe-4339 User Manual, respectively), you will see circuit diagrams in this manual showing how the three or four wires should tie to the 4439 terminal block and connectors. These are copied below for your reference:

Quarter Bridge I

Quarter Bridge II

Additional Information

The pin assignments for the RJ50, shown in Table 5 on page 15 of the User Guide and Terminal Block Specifications NI PXIe-4339 and RM-4339, also show what the signal name should tie to on the RM-4339.