B.2.2 The ‘Frame Ground’ and ‘Grounding Bar’
Figure B.2 Grounding Bar
Grounding is one of the most important issues for our system. Just like Frame Ground of the computer, this signal offers a reference point of the electronic circuit inside the computer. If we want to communicate with this computer, both Signal Ground and Frame Ground should be connected to make a reference point of each other’s electronic circuit. Generally speaking, it is necessary to install an individual grounding bar for each system, such as computer networks, power systems, tele- communication networks, etc. Those individual grounding bars not only provide the individual reference point, but also make the earth a our ground!
Figure B.3 Normal and Common Modes
Chapter B Grounding Reference
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