Hardware Installation
6. Troubleshooting
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Troubleshooting:
Check if the supervisor module gets loose. If so, install the supervisor module again and ensure
that it is inserted into place, before you tighten the fastening screws. If the supervisor module
still does not work, check if the connector of the slot on the backplane is loose and check if the
slide rail of the slot is deformed. If yes, insert the module to another slot for a try. If the slot
and connection are not the cause, return the supervisor module for repair.
When the Alarm LED is red, the cause may be the fault of another module in the system, in
which case you can check other modules (for example, service module, fan, power, and
overheating) for any alarm. If yes, you should first handle the faults of other modules. You can
also identify the faults by logging in to the management software.
Fault 5: The fan tray does not work or the LED is abnormal.
Fault Description:
After the system starts, the fans in the fan tray do not work or the status LED is OFF.
Troubleshooting:
Check if the connection between the fan tray and the backplane is secure and if the connector
gets loose. If the connection is secure, you need to replace the fan tray.
Fault 6: The serial port console has no output.
Fault Description:
After the system is started, the serial port console does not display any information.
Troubleshooting:
Check whether serial port cables are connected correctly and whether the connected serial
port is identical with that configured on the super terminal. Check whether the configuration
of the serial port on the super terminal is the same as that described in
QSW-7600 Software
Configuration Guide
. If not, modify the serial port configuration parameters. If there is still no
serial port printed information, please contact QTECH Customer Service Department for
technical support.
Fault 7: The serial port console outputs illegible characters.
Fault Description:
The serial port console outputs illegible characters.
Troubleshooting:
Such problem is related to the settings of the serial port. Check if the settings of such
parameters as the baud rate match those in
QSW-7608 series Software Configuration Guide
.
Fault 8: The newly-inserted service module fails to be powered on.
Fault Description:
The system is running, yet all LEDs on the panel of the newly-inserted service modules are OFF,
and the port is faulty.
Troubleshooting:
