H3C S3100-8C-Sl Quick Start Manual page 79

Quick Start (For Japan)
H3C S3100 Series Ethernet Switches
Power input
Figure 4-2 Installation diagram of lightning arrester for network
port
III. Installation precautions
Fully consider the following items in the installation process,
otherwise, the performance of the lightning arrester for network port
will be affected:
Lightning arrester for network port is installed in reverse
direction. In practice, the "IN" end should be connected to
the outdoor network cable and the "OUT" end to the network
port on the switch.
Lightning arrester for the network port is not well grounded.
The ground cable for the arrester should be as short as
possible, so to ensure its good contact with the grounding
screw of the switch. After the connection, use the multimeter
to confirm that.
Network cable indoors
Switch
4-6
Chapter 4 Lightning Protection
Network cable led into from outdoor
Lightning arrester for network port
(attached onto the chassis)
Ground wire of lightning arrester
Grounding screw of switch
Metal cabinet that contains the switch
of the Switch