3: Source-measure hardware Model 4200A-SCS Parameter Analyzer
3-22 4200A-901-01 Rev. C / February 2017
COMMON terminal
The COMMON terminal is a binding post that provides access to circuit COMMON.
Normally, a link is connected between ground unit COMMON and chassis ground, but it may be
necessary to remove the link to avoid measurement problems caused by ground loops or electrical
interference (see Interference (on page 12-17) for details).
Chassis ground
This binding post provides a convenient connecting point to system chassis ground for purposes of
shielding a test fixture.
Figure 54: Chassis ground
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