3com 5108M-TP Manuel D’Utilisation
Troubleshooting 4 - 5
Troubleshooting With the Activity LEDs
There may be situations where a port's Activity LED may not light. Use the
troubleshooting suggestions in Table 4-2 to help isolate why this has
occurred.
troubleshooting suggestions in Table 4-2 to help isolate why this has
occurred.
Table 4-2. Troubleshooting With the Port Activity LEDs
LED Name
LED
State
Possible Problem
Troubleshooting
Solutions
Activity
(Ports 1 - 8)
(Ports 1 - 8)
Off
There is no traffic
received from the
segment (normal)
received from the
segment (normal)
None.
The port is disabled
Check the port enable dip
switch setting.
switch setting.
The power is off
Check the Controller
Module Power LEDs.
Module Power LEDs.
The Activity LED has
burnt out
burnt out
Press the LED/Channel
Check button on the
Controller Module.
Check button on the
Controller Module.
The 10BASE-T
Module port is
faulty
Module port is
faulty
Connect the cable to a
different port.
different port.
The module
connection to the
backplane is bad
connection to the
backplane is bad
Reinsert the 10BASE-T
Module. If this fails, try
another concentrator slot.
Module. If this fails, try
another concentrator slot.
The 10BASE-T
Module is faulty
Module is faulty
Try a different 10BASE-T
Module.
Module.