Troubleshooting Using The Port Status Leds - 3Com CoreBuilder 5000 User Manual

5-4 T
ROUBLESHOOTING
Troubleshooting
Using the Port
Status LEDs
Table 5-2 outlines possible causes and some solutions for
troubleshooting the Port Status LEDs. A blinking Port Status indicator
signals a problem with a port or link connected to a port.
Table 5-2

Troubleshooting Using the Port Status LEDs

LED
State Indication
1 blink Port enabled, but
no station is
detected
(phantom
current is not
detected).
OFF Port disabled
Possible Cause Corrective Action
Station not powered. Turn on the PC or other
connected.
Faulty cable. Replace the cable
No cable connected Disable the port.
to station.
Station speed does Check the speed of the
not match the station and network.
network speed. Make sure the speeds
match.
Station not inserted Run your software
on ring. application to cause the
Token Ring end station to
insert onto the ring.
Port disabled. Enable port.
Module not Check the controller
receiving power. module power LEDs.
Power management Check hub power
system has powered management settings (see
down slot. the DMM User Guide for
more information).
Broken LED. Press the LED check
button on the controller
module.
Faulty module. Replace module.