H3C Technologies H3C SecPath F5000-S Firewall - Manual (Page 27)

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Installation procedures
To install a port lightning protector:
1. Use a double-faced adhesive tape to stick the lightning protector onto the firewall chassis, and
make sure it is as close to the grounding screw of the firewall as possible.
2. Measure the distance between the protector and the grounding screw of the firewall, cut the
ground wire of the protector as appropriate, and securely tighten the ground wire to the grounding
screw of the firewall.
3. Use the multimeter to measure whether the ground wire of the protector contacts well with the
grounding screw of the chassis.
4. Insert the outdoor network cable into the protector's IN end, and the cable connected to the
firewall into the OUT end, and look at the indicators on the lightning protector to verify that the
connection is correct.
Figure 14 Installing a lightning protector for a network port
(1) Grounding cable (2) Lightning protector
Precautions
The performance of the port lightning protector might be adversely affected in the following cases:
• The port lightning protector is installed in reverse direction.
Connect the IN end to the outdoor network cable and the OUT end to the network port on the
firewall.
• The port lightning protector is not well grounded.
After the connection, use the multimeter to confirm that the ground wire for the protector is as short
as possible to ensure its good contact with the grounding screw of the firewall.
• The installed port lighting protectors are not sufficient.
If the firewall has more than one network port connected with other devices through cables
outdoor, install a lightning protector for each network port.
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