on the the cabinet, work station, or the equipment room's wall through line buckles and screws. In applications, the
AC first enters the lightning line bank and then the switch.
1
The lightning line banks are not provided and should be purchased by users as required.
2
For the usage of lightning line banks, refer to their related manuals.
2.5 EMI Consideration
Various interference sources, from either outside or inside the equipment or application system, affect the system in
the conductive ways such as capacitive coupling, inductive coupling, and electromagnetic radiation.
There are two types of electromagnetic interferences: radiated interference and conducted interference, depending
on the type of the transmission path.
When the energy, often RF energy, from a component arrives at a sensitive component via the space, the energy is
known as radiated interference. The interference source can be either a part of the interfered system or a completely
electrically isolated unit. Conducted interference results from the electromagnetic wire or signal cable connection
between the source and the sensitive component, along which cable the interference conducts from one unit to
another. Conducted interference often affects the power supply of the equipment, but can be controlled by a filter.
Radiated interference may affect any signal path in the equipment and is difficult to shield.
1.Effective measures should be taken for the power system to prevent the interference from the electric grid.
2.The working ground of the switch should be preferably separated and kept as far as possible from the grounding
device of the power equipment or the anti-lightning grounding device.
3.Keep the equipment away from high-power radio transmitter, radar transmitting station, and high-frequency
large-current device.
4.Measures must be taken to shield static electricity.
2.6 Precaution for Fiber Connections
Before you connect the fibers, check that the optical connector type and fiber type match the optical interface type
used. In addition, pay attention to the Tx and Rx directions of the fiber. The Tx end of this equipment should be
connected to the Rx end of the peer equipment, and the Rx end of this equipment to the Tx end of the peer
equipment.
2.7 Requirements of Installation Tools
Table 2-4 List of installation tools
Common tools
Cross screwdriver, straight screwdriver, related electric cables and optical cables,
bolts, diagonal pliers, straps
Special tools
Anti-static tools
Meters
Multimeter
