Installation Of Lightning Arrester For Network Port - Huawei Quidway S3526 Installation Manual

Installation Manual
Quidway S3526 Ethernet Switch
Caution:
1) Make sure that the PE terminal is well grounded before using the lightning arrester for power.
2) Insert the AC power plug of switch into the socket of lightning arrester for power (socket strip with
lightning protection). If the green LED is on and the red LED does not alarm, it means that the lightning
arrester of power is running and the function of lightning protection has taken effect.
3) Pay adequate attention if the red LED alarms. You should correctly locate the problem, whether it is
caused because the ground wire is not well grounded or because the live and zero lines are connected in
reverse direction. You may check that in the following way. Use a multimeter to examine polarity at the
power socket of lightning arrester. If the zero line is on the left and the live line on the right, it means that
the lightning arrester is connected to AC socket in reverse polarity. In this case, you should open the
lightning arrester for power to correct connection polarity. If the red LED still alarms, it means that PE is not
grounded yet, and you should check the AC power socket again for sure.
C.2 Installation of Lightning Arrester for Network Port
Note:
Lightning arrester for network port is specially designed for the Ethernet port of 10/100M electrical
interface (RJ-45 connector is adopted in this case).
Caution:
Lightning arrester for network port will not be provided along with the equipment, and you should purchase
it by yourself as needed.
If an outdoor network cable should be led into the switch, please serially connect the
lightning arrester for network port before you plug this cable into the interface on the
switch, in case of the possibility that the switch may be damaged due to lightning strike.
I. Required tools
Phillips screwdriver or Flat-blade screwdriver
Multimeter
Tilted wire cutter
Appendix C Lightning Protection of Switches
C-2