User Manual
U-SYS IAD208E(M) Integrated Access Device Chapter 2 Installing Hardware
Huawei Technologies Proprietary
2-3
Table 2-2
Measures for preventing electromagnetic interference
Item
Description
1
AC power receptacles should be monophase three-wire
receptacles with protection grounding (PE). So that the
filtration circuit on the equipment can effectively filter the
interference from electricity power supply.
2
The work site of the equipment should be far from powerful
radio station, radar station, or devices with high-frequency
or huge-current.
3
If necessary, Electromagnetic masking method can be
adopted, such as adopting making cables for interface
cables.
4
The interface cables must be wired indoors, and wiring them
outdoors is prohibited, because the over-voltage and
over-current caused by lightning will damage the signal
interface.
2.1.4 Tools and Meters
The following meters and tools should be ready before the
installation work is started:
