Equipotential BondingFigure 3-3 
When equipotential  bonding,  please note that  the cable should be copper wrapped 
Kelly with its area being 6mm
2
  at  least.  The  shorter  cable  the  better,  and  use  a 
grounding bar to establish an equipotential bonding point.
Note: The equipotential bonding cable  is not  provided with our  product. If needed, 
please self purchase it.
Power lightning arrester and signal lightning arrester are used for lighting protection. 
Power lightning arrester is used for limiting the voltage surge due to a lightning. If an 
outdoor AC power cord should be directly connected to the device, please use a power 
lightning arrester.
Note: Power lightning arrester is not provided with our product. If needed, please self 
purchase it.
Signal  lightning  arrester  is used  to  protect RJ45  ports  of the  device  from  lightning. 
When cabling outdoors, please install a signal lightning arrester before connecting the 
cable to the device.
When  purchasing  or  using  a  signal lightning arrester,  please  observe the following 
rules:
Lightning Protection