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Figure 22 Installing a lightning protector for a network port
(1) Grounding cable
(2) Lightning protector
Installation precautions
The performance of the port lightning protector might be 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 router.
•
The port lightning protector is not reliably 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 router.
•
The installed port lighting protectors are not sufficient. If the router has more than one network
port connected with other devices through cables outdoor, install a lightning protector for each
network port.
Connecting the AC power supply to a power strip with
lightning protection
CAUTION:
Make sure the PE terminal of the power socket has been securely grounded.
If part of the AC power line is routed outdoors, use a power strip with lightning protection to connect
the AC power cord of the router to the AC power line to protect the router from being damaged by
lightning strikes.
You can attach the power strip to the rack, workbench, or wall of equipment room.
After you connect the AC power cord from the router to a socket on the power strip, verify that the
green RUN LED on the strip is on and the red LED is off.