H3C SR6604 Installation Manual page 43

Figure3-7 Installing a surge protector
Precautions
The performance of the surge protector might be affected in the following cases:
•
The surge 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 surge 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 surge protectors are not sufficient. If the router has more than one cable
connected with other devices through cables outdoor, install a surge protector for each cable.
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