QSW-6300 Series Switches Hardware Installation and Reference Guide
Appendix
44
Grounding and polarity detection indicator: If the
indicator is red, cable connection is incorrect (the
ground cable is not connected, or the N and L lines are
reversely connected). Check your power supply line.
Normally running indicator: When the
indicator is green, the circuit is working
properly. Otherwise, the protective circuit is
damaged.
Installed electronic circuit board
Multi-purpose sockets (connected to the power
supply of the switch)
Overload auto-protector, which
can be reset manually
IEC standard socket, which is
connected to the power supply
in the equipment room through
the power cable
Power switch
Figure C-1 Power Arrester
Note:
The power arrester is not delivered with the switch. Please purchase it based on actual
requirements.
Precautions:
Make sure that the PE terminal of the power arrester is well grounded.
After the AC power plug of the switch is connected to the socket of the power arrester
(lightning protection power strip), the lightning protection function is implemented only if
the RUN indicator is green and the ALARM indicator is OFF.
If the ALARM indicator on the power arrester is red, check whether it is caused by poor
grounding connection or by the reversed connection of the Null and Live lines. The
detection method is as follows: Use a multimeter to measure the polarity of the power
socket for the arrester when the indicator is red. If the N line is on the left and the L line
is on the right (facing the socket), the arrester's PE terminal is not grounded. If not, the
polarity of the arrester power cord should be reversed. In this case, you should open the
power arrester and rectify the polarity of the connection. If the indicator is still red, the
arrester's PE terminal has not been grounded.
7.2.2. Installing the Ethernet Port Arrester
Please connect an Ethernet port arrester to the switch to prevent the damage by lightning before
connecting an outdoor network cable to the switch.
Tools: Phillips screwdrivers or flat-head screwdriver, multimeter, and diagonal pliers
Installation Steps:
Tear one side of the protective paper for the double-sided adhesive tape and paste the
tape to the housing of the Ethernet port arrester. Tear the other side of the protective
