Which terminals of PCI-6221 (68-PIN) to connect for DIFFERENTIAL measurements?

[surfaces]

Hi!

I would like to do some differential measurements with a PCI 6221 (68-PIN) card. Which terminals (of the 68 Pins) I have to connect to do differential measurements (voltage measurements)?
Thank you for your help!

[dpacaba]

Hello surfaces:

The pinouts for the differential input of NI 6221 DAQ card are below...

AI0+ pin68
AI0- pin34

AI1+ pin33
AI1- pin66

AI2+ pin65
AI2- pin31

AI3+ pin30
AI3- pin63

AI4+ pin28
AI4- pin61

AI5+ pin60
AI5- pin26

AI6+ pin25
AI6- pin58

AI7+ pin57
AI7- pin23

Please advice if you have any comments.