Troubleshooting - 3Com IntelliJack NJ105 User Manual

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If you encounter problems with the NJ105 IntelliJack:
Verify the IntelliJack is receiving power by viewing the
Power LED (it should be on). If the Power LED is not on,
make sure that:
(If using Power Over Ethernet) the other end of the
network cable is plugged into a switch on the network
that has Power Over Ethernet integrated into it, or one
that feeds into an external midspan power supply that
supports Power Over Ethernet.
(If using a local power supply) the power supply is
plugged into the IntelliJack and into a working electrical
outlet.
Verify the IntelliJack is connected to the network properly
by viewing the Link LED (it should be on). If the Link LED is
not on, make sure the network cable:
Is terminated properly. Refer to the connector
manufacturer's instructions for terminating the cable. Be
sure to test the connector and verify it is working.
Has a valid connection to the network.
Adheres to proper length and cabling specifications for
your network.

Troubleshooting

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