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Appendix D - Ground Loop Phenomenon
Appendix D - Ground Loop Phenomenon
What is Ground Loop?
Ground loop Phenomenon occurs when two (or more) pieces of equipment are connected together with a common ground and a different ground potential exists at each location. This current can cause the connected equipment to experience noise that in turn causes data transmission errors. In the extreme this ground current can cause equipment malfunction or even destruction.
Cabling Recommendations
When connecting the
Isolation
Barrier
A
Isolated
Ultra SIO
DATA+
DATA-
Ground
B
Non
Isolated
Ultra SIO
Figure 11 - OMG-ULTRA-SIO cabling example
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