-TCSCAN Scanner Card User's Manual Section 3:
2001-TCSCAN-900-01 Rev. A / April 2018 3-13
Combining 2-pole and 4-pole switching
The 2001-TCSCAN scanner card can combine 2- and 4-pole switching. For example, your
configuration may require 4-pole switching for only two resistors, while the remaining resistors can be
tested using conventional 2-pole switching. The figure below shows a test configuration using mixed
2- and 4-pole switching. Four-pole switching is used only for the DUT connected to channels 2 and 7.
Five more resistors are tested using 2-pole switching. Configure the channels for the 2- and 4-wire
functions.
Figure 22: Combining 2-pole and 4-pole switching
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