Appendix c grounding reference, C.1 field grounding and shielding application, Field grounding and shielding application – B&B Electronics ADAM-6066 - Manual User Manual
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ADAM-6000 Series User Manual
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Appendix C Grounding Reference
C.1 Field Grounding and Shielding Application
Overview
Unfortunately, it’s impossible to finish a system integration task at one
time. We always meet some trouble in the field. A communication net-
work or system isn’t stable, induced noise or equipment is damaged or
there are storms. However, the most usual issue is just simply improper
wiring, ie, grounding and shielding. You know the 80/20 rule in our life:
we spend 20% time for 80% work, but 80% time for the last 20% of the
work. So is it with system integration: we pay 20% for Wire / Cable and
0% for Equipment. However, 80% of reliability depends on Grounding
and Shielding. In other words, we need to invest more in that 20% and
work on these two issues to make a highly reliable system. This applica-
tion note brings you some concepts about field grounding and shielding.
These topics will be illustrated in the following pages.
Grounding
1.1 The ‘Earth’ for reference
1.2 The ‘Frame Ground’ and ‘Grounding Bar’
1.3 Normal Mode and Common Mode
1.4 Wire impedance
1.5 Single Point Grounding
2. Shielding
2.1 Cable Shield
2.2 System Shielding
3. Noise Reduction Techniques
4. Check Point List