Table 4-1 (Page 1 of 2). Problem Determination Using Port Status LEDs
Status LED Port Status Possible
Cause
Corrective Action
OFF Disabled Port is
disabled.
Enable port.
Enabled 6412M-25-TP
module is not
powered ON.
1) Check that the ONcore or
CELLplex 4000 is connected to
a power supply.
2) Check the power supply LED
by following the instructions in
“Verifying LED Operation” on
page 4-1.
3) Re-insert the 6412M-25-TP
module in the hub.
Status LED is
burned out.
1) Check the Status LED by
following the instructions in
“Verifying LED Operation” on
page 4-1.
2) If the Port Status does not
light, replace the module.
6412M-25-TP
module is
faulty.
Perform the wrap tests
described in “Determining the
Failing Component Using a
Wrap Test” on page 4-9.
Chapter 4. Troubleshooting 4-3
