Hardware Installation and Reference Guide
Appendix C Lightning Protection
48
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 paper for the double -sided adhesive tape and paste the
Ethernet port arrester to the switch housing. The paste position for the Ethernet port arrester should be as close to
the ground terminal of the switch as possible.
Based on the distance between the switch ground terminal and the Ethernet port arrester, cut the ground cable for
the Ethernet port arrester and firmly tighten the ground cable to the ground terminal of the switch.
Use a multimeter to check whether the ground cable for the arrester is in good contact with the ground terminal and
the housing of the switch.
Connect the arrester by using an adapter cable (note that the external network cable is connected to the IN end, while
the adapter cable connected to the switch is connected to the OUT end) and check whether the service module
indicator is normal.
Use a nylon cable tie to bundle the power cords.
Figure C-2 Ethernet port Arrester Installation
Power
input
Switch
Network cable connected
to the outdoor
Ethernet port arrester
(pasted on the switch
housing)
Ground cable of the
arrester
Ground terminal of
the switch
Metal box for
installing the switch
Adapter cable
Network cable for
indoor connection
The Ethernet port arrester is only for the 10 M/100 M copper Ethernet ports with an RJ-45 connector;
. The Ethernet port arrester is not delivered with the switch. Please purchase it based on actual requirements.
Pay attention to the following conditions during the actual installation to avoid affecting the performance of the Ethernet
port arrester:
Reversed installation direction of the arrester. Connect the external network cable to the "IN" end and connect the
Ethernet port of the switch to the "OUT" end.
Poor grounding of the arrester. The ground cable of the arrester should be as short as possible to ensure that it is in
good contact with the ground terminal of the switch. Use a multimeter to confirm the contact condition after the
grounding.
