QSW-6300 Series Switches Hardware Installation and Reference Guide
Preparing for Installation
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2.2.6. 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 propagation 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 both a part of the interfered system and a
completely electrically isolated unit. Conducted interference results from the electromagnetic wire
or signal cable connection between the source and the sensitive component, along the 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.
Take effective measures for the power system to prevent the interference from the
electric grid.
Keep the running position of the switch as far as possible from the grounding device of
the power equipment or the anti-lightning grounding device.
Keep the device away from high-power radio transmitter, radar transmitting station, and
high-frequency large-current device.
Take measures to isolate static electricity.
2.3. Precautions for Fiber Connection
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 device should be connected to the Rx end of the peer device, and the Rx end of
this device to the Tx end of the peer device.
2.4. Tools
List of Tools
Common Tools
Phillips screwdriver, flat-head screwdriver, wires, network
cables, fastening bolts, diagonal pliers, and binding straps
Special Tools
Anti-static tools
Meters
Multimeter
Note:
The QSW-6300 series switch is delivered without a tool kit. Please prepare a tool kit yourself.
