QSW-6300 Series Switches Hardware Installation and Reference Guide
Preparing for Installation
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grounding conditions at the installation site according to the grounding specifications, and
complete grounding properly based on the actual situation.
Note:
Correct grounding is the key to prevent lightning strikes and resist interference and must be
performed by users.
2.2.4.1. Safety Grounding
Ensure that the switch are grounded through the yellow/green safety grounding cable when the
device adopts the AC power supply. Otherwise, electric shock may occur when the insulation
resistance between the power supply inside the switch and the chassis becomes small.
2.2.4.2. Lightning Grounding
The lightning protection system of facilities is standalone, and is composed of a lightning rod, a
lower conductor, and a connector connected to the grounding system. The grounding system is
usually used for power reference grounding and safety grounding of the cabinet. Lightning
grounding is required only for facilities and is not required for the switch.
2.2.4.3. EMC Grounding
Grounding required for electromagnetic compatibility includes shielded grounding, filter
grounding, noise and interference suppression, and level reference, which contribute to the
overall grounding requirements. The grounding resistance should be smaller than 1 ohm. The
QSW-6300 back panel has one grounding connector.
Figure 2-1 Grounding of the QSW-6300
2.2.5. Lightning Protection Requirements
The AC power port must be connected to an external lightning protection power strip to prevent
the switch from being struck by lightning when the AC power cord is introduced from the outdoor
and directly connected to the power port of the switch. The lightning protection power strip can
be fixed on the cabinet, workbench, or wall in the equipment room by using cable ties and screws.
AC power enters the lightening protection power strip and then gets to the switch.
Note:
The QSW-6300 switch is delivered without a lightning protection socket. Please prepare
a lightning protection socket yourself.
For the usage of the lightning protection socket, refer to its manual.
