3Com SuperStackII Switch 3900 Quick Installation Manual page 9

LED Status
Pckt LED does not light.
Stat LED does not light.
Quick Installation Guide
Possible Sources of Problem and Steps to Take
Possible sources of problem:
Software error has occurred.
Traffic is disabled in the software.
Recommended action:
Examine the Administration Console display for
diagnostic messages.
Verify that the port is not disabled by Spanning
Tree.
Contact your network supplier or 3Com Technical
Support.
Possible sources of problem:
System does not recognize a connection to the
port.
Cabling is not fully attached to the port.
Cabling to the port is faulty.
Recommended actions:
1 Verify that all cables are firmly inserted into both
the system's affected port and the attached
device.
2 Test for faulty cables. When the problem is
corrected, the LED lights green.
3 If the LED does not light, contact your network
supplier or 3Com Technical Support.
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