NI 9401 Operating Instructions and Specifications
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© National Instruments
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7
Cable Requirements for EMC Compliance
Select and install cables for the NI 9401 in accordance with the
following requirements:
•
Install a clamp-on ferrite bead (National Instruments part
number 711627-01) on cable that you are connecting to NI 9401.
•
The clamp-on ferrite bead must be connected to the cable as
close to the module as possible. Placing the ferrite elsewhere
on the cable noticeably impairs its effectiveness.
Figure 1.
Installing a Ferrite Bead
1
Installing a ferrite bead on a 25-pin DSUB cable.
2
Installing a ferrite bead on the cable of the NI 9924 terminal block.
1
2
