RG-ES206GS-P Series Switches Hardware Installation and Reference Guide    Appendix C — Lightning Protection 
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●  The Ethernet port arrester is not delivered with the switch. Please purchase it based on actual 
requirements.   
●  The Ethernet port arrester user manual contains technical parameters and maintenance and installation 
instructions for the Ethernet port arrester. Carefully read this manual before installation. 
  Pay attention to the following situations during the actual installation to avoid influencing 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 grounding cable of the arrester should be as short as possible to ensure 
that it is in good contact with the grounding terminal of the switch. Use a multimeter to confirm the contact 
condition after grounding. 
  Incomplete arrester installation. If there is more than one port connected to the peer device on the switch, 
arresters need to be installed on all connection ports for the purpose of lightning protection.