Troubleshooting Matrix - 3Com 3CNJ205 User Manual

Troubleshooting

Troubleshooting Matrix

Event/
Message
Power LED is
not on
Link LED is
not on
Green LEDs
on Ports 1-4
are not on
76
Description
IntelliJack is not receiving
power
IntelliJack has no
connection to the
network
Network device has no
connection to IntelliJack
Solution
Ensure power supply is
properly connected.
For power over Ethernet,
make sure that the cable is
connected to both the
LAN port on the back of
the IntelliJack and to the
workgroup switch.
Make sure network
n
cable is properly
terminated.
Make sure the
n
IntelliJack is
connected to the
network.
Make sure the cable
n
is plugged into the
workgroup switch.
Make sure the cable
n
is properly
connected to the
network device.
Make sure the cable
n
is firmly connected
to one of the four
IntelliJack ports
labeled 1-4.
Make sure the cable
n
is a good straight-
through cable.