JetStream Gigabit L2 Managed Switch
13Lightning Protection
Device Min Distance (m)
Switch case 1.00
Transformer room 2.00
Elevator tower 2.00
Air-conditioner room 2.00
3.2 Connect to Ground
Connecting the device to ground is to quickly release the lightning over-voltage and over-current of
the device, which is also a necessary measure to protect the body from electric shock.
In different environments, the device may be grounded differently. The following will instruct you
to connect the device to the ground in two ways, connecting to the ground via the power supply or
connecting to the ground via the grounding terminal. Please connect the device to ground in the
optimum way according to your specific operation environment.
Note:
For the device without grounding terminal, please refer to the first way Connecting to the
Ground via the Power Supply only.
■
Connecting to the Ground via the Power Supply
If the device is installed in the normal environment, the device can be grounded via the PE (Protecting
Earth) cable of the AC power supply as shown in the following figure.
Figure 3-1 Connecting to the Ground via Power Supply
Switch (Rear Panel)
AC Power Cord (with PE cable)
Note:
■
The figure is to illustrate the application and principle. The power plug you get from the package
and the socket in your situation will comply with the regulation in your country, so they may
differ from the figure above.
■
If you intend to connect the device to the ground via the PE (Protecting Earth) cable of AC
power cord, please make sure the PE (Protecting Earth) cable in the electrical outlet is well
grounded in advance.
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