DELTA GROUP VIVOTEK, Быстрое руководство по установке

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Bus bar(Cont.)
8
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If all the devices connect to one command point (bus bar) instead of connect to ground
separately, there’s no voltage difference between them.
‣
The current will not pass through the ethernet cable between devices and causing loop.
D1 D2 D3
Common Grounding
666 mV gap between 2 devices
Bus Bar
Common Grounding
Bus Bar