QTech QSW-6900-56LF Series Hardware Installation And Reference Manual page 41

Installation Manual
8. Appendix B Lightning Protection
The Ethernet port arrester is only for the 10M/100M copper Ethernet ports with the RJ-45
connector;
The Ethernet port arrester is not provided, the user can purchase them to address their own
pratical requirements. For the detailed information for the arrester installation, please refer
to Ethenet Port Arrester Hardware Installation Guide, which contains the technical
specification and the maintenance and installation of the arrester.
You should pay attention to the following conditions during the actual installation to avoid
influencing the performance of the Ethernet port arrester:
❖ Reversed direction of the arrester installation. You shall connect the external network cable
to the "IN" end and connect the switch Ethernet port to the "OUT" end.
❖ Poor arrester grounding. The length of the grounding line should be as short as possible to
ensure that it is in good contact with the switch grounding terminal. Use the multimeter to
confirm the contact condition after the grounding.
❖ Incomplete arrester installation. If there is more than one port connected to the peer
device on the switch, it entails installation of arresters on all connection ports for the
purpose of lightning protection.
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