Precautions; Connecting The Ac Power Supply To A Power Strip With Lightning Protection - HP 830 Installation Manual

Use nylon ties to bundle the cables.
5.
Figure 22 Installing a lightning protector for a network port

Precautions

If the performance of the port lightning protector is adversely affected in the following situations, follow
the recommended solution:
• Problem 1—The port lightning protector is installed in reverse direction.
Solution—Connect the Surge end to the outdoor network cable and the Protect end to the network
port on the switch.
Problem 2—The port lightning protector is not well grounded.
•
Solution—After the connection, use the multimeter to confirm that the ground wire for the protector
is as short as possible to make sure it makes good contact with the grounding screw of the switch.
Problem 3—The installed port lightning protectors are not sufficient.
•
Solution—If the switch has more than one network port connected to other devices through outdoor
cables, install a lightning protector for each network port.
Connecting the AC power supply to a power strip
with lightning protection
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 switch to the AC power line to protect the switch from being damaged by lightning
strikes.
You can attach the power strip to the rack, workbench, or wall of equipment room.
CAUTION:
Make sure the PE terminal of the power socket has been securely grounded.
After you connect the AC power cord from the switch to a socket on the power strip, verify that the green
RUN LED on the strip is on and the red LED is off.
If the red LED is on, use a multimeter to examine the polarity of the wires in the power socket for wrong
connections. If the zero wire (left) and the live wire (right) are correctly connected, check for a missing
grounding connection.
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