Appendix C Lightning Protection For The Switch; Installing A Surge Protected Power Strip - H3C S5120-SI Installation Manual

Appendix C Lightning protection for the
switch

Installing a surge protected power strip

CAUTION:
Make sure the PE terminal of the power socket on the surge protected power strip is reliably
grounded.
If part of the AC power line is routed outdoors, use a surge protected power strip to protect the switch
from being damaged by lightning strikes.
No surge protected power strip is provided with the switch. Prepare it yourself.
To use a surge protected power strip:
Attach the surge protected power strip to the rack, workbench, or wall of the equipment room.
1.
Connect the AC power line to the surge protected power strip. Then connect the AC power cord
2.
from the switch to a socket on the power strip.
Verify that the green LED on the strip is on and the red LED is off.
3.
If the red LED is on, use a multimeter to verify the polarity of the wires in the power socket for
4.
incorrect connections. If the zero wire (left) and the live wire (right) are correctly connected,
check for missing grounding connections.
45