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Electromagnetic wave radiation.
Common impedance (including the grounding system) coupling.
To prevent EMI, perform the following tasks:
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to
filter interference from the power grid.
Keep the router far away from radio transmitting stations, radar stations, and high-frequency
devices.
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
Lightning protection
To protect the router from lightning, follow these guidelines:
Make sure the router is reliably grounded by using a grounding cable.
Make sure the AC power receptacle is reliably grounded.
Install a lightning protector at each power input end.
Installation accessories and tools
Figure 1 Installation accessories
Figure 2 User-supplied tools and equipment
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