Advantech ADAM-5511 Manual page 326

N
G
G
Neutral is the physical cable from Generator.
Ground is the local physical cable that connected to
Ground 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,
telecommunication networks, etc. Those individual grounding bars not
only provide the individual reference point, but also make the earth a
our ground!
N
Single Phase, Three Line
N
G
G
L
110V
N
110V
L
220V