
95
(5) Overload automatic
protector
The protector automatically opens the electric circuit when the current exceeds
the threshold and closes the electric circuit when the current drops below the
threshold.
(6) Multifunctional socket Connects the power module of the router.
Installing a lightning protector for a network port
HP recommends that you install lightning protector for 10/100/1000 Mbps RJ-45 copper Ethernet
ports. The router does not come with lightning protectors.
If part of the network cable of a 10/100/1000 Mbps RJ-45 copper Ethernet port must be routed
outdoors, connect a lightning protector to the cable before you plug the cable into the port.
The following tools are required:
• Phillips or flat-blade screwdriver
• Multimeter
• Tilted wire cutter
To install a lightning protector:
1. Read the instructions for the lightning protector carefully before you install it.
2. Tear off the protection paper on one side of the double-faced adhesive tape, and stick the tape
on the surface of the protector. Tear off the protection paper at another side, and stick the
protector onto the chassis of the router. Keep the protector as close to the grounding screw of
the router as possible.
3. Measure the distance between the protector and the grounding screw of the router, cut the
ground wire of the protector and securely tighten the ground wire to the grounding screw.
4. Use the multimeter to determine if the ground wire of the protector has good contact with the
grounding screw of chassis.
5. Insert the outdoor network cable into the protector's IN end, and the cable connected to the
router into the protector's OUT end and look at the indicators on the lightning protector to verify
the connection is correct.
6. Use nylon ties to bundle the cables.
Protector performance may be affected for the following reasons:
• The protector is installed incorrectly. Connect the IN end to the outdoor network cable and the
OUT end to the network port on the router.
• The protector is not well grounded. Use the multimeter to verify that the ground wire for the
protector is as short as possible to ensure good contact with the grounding screw of the router.
• The installed protectors are not sufficient. If the router has more than one network port has
outdoor cabling, install one protector for each network port.
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