Troubleshooting The Nj225; Troubleshooting Matrix - 3Com IntelliJack NJ225 User Manual

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Troubleshooting Matrix

Event/Message
Power LED is not on
Link LED is not on

Troubleshooting the NJ225

If you encounter problems with the IntelliJack:
Verify the IntelliJack is receiving power by viewing the Power LED (it should be on). If
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the Power LED is not on, make sure that:
If using power over Ethernet, the other end of the network cable is plugged
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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.
The local power supply is plugged into the IntelliJack and into a working
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electrical outlet, if your network does not support Power Over Ethernet.
Verify the IntelliJack is connected to the network properly by viewing the Link LED (it
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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
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terminating the cable. Be sure to test the connector and verify it is working.
Has a valid connection to the network.
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Adheres to proper length and cabling specifications for your network.
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The IntelliJack is configured for manual MDI. Be sure to use a straight-through cable.
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If you want to use a cross-connect cable, you must change settings in the
Configuration Manager software.
Description
IntelliJack is not receiving
power
IntelliJack has no connection
to the network
Solution
Ensure power supply is properly
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connected.
For power over Ethernet, make sure
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that the cable is connected to both
the LAN port on the back of the
IntelliJack and to the workgroup
switch.
Make sure the upstream switch is
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configured and active
Make sure network cable is properly
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terminated.
Make sure the IntelliJack is connected
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to the network.
Make sure the cable is plugged into
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the workgroup switch.
Make sure the upstream switch is
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configured and active
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