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QSW-4600
Series Switch Hardware Installation and Reference Guide
5 Maintenance and Troubleshooting
5.1 General Troubleshooting Procedure
Make sure that the switch is installed to the rack.
Make sure that that the power cables are correctly connected.
Check the indicators.
Make sure that the serial port is connected firmly, and the parameters are set correctly.
Make sure that the optical fibers or cables are correctly connected to the ports.
Contact QTECH Customer Service Department.
5.2 Troubleshooting Common Faults
Symptom
Possible Causes
Forgetting the
A password is manually configured but
management interface
it is forgotten.
login password
The status indicator is
The power supply module does not
not on after the switch
supply power.
is started.
The power cable is in loose contact.
The status indicator is
Fan alarm
red.
Temperature alarm
Power alarm
The serial port
The serial port connected to the switch
console has no output
does not match that opened by the
or outputs illegible
configuration software.
characters.
The serial port is not configured
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Solution
Please contact QTECH Customer Service
Department for technical support.
Check whether the power socket at the equipment
room is normal and whether the power cable of the
switch is in good contact.
Check whether the fan stops working or is
damaged.
Temperature alarm: the switch already stops the
normal service exchanges. Check in time the
working environment of the switch, clean the dust
on the cabinet and reinforce the refrigeration effect.
Power alarm: the power module problem may be:
1) The power module is in place but no power cord
is connected. Please power on the module or
remove the unused power module. 2) The power
module is faulty. Please replace a power module.
Change the serial port opened by the configuration
software to be the one connected to the switch.
Check that the parameter configuration of the serial
port matches that specified in the instructions.
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