QSW-6200
Series Switch Hardware Installation and Reference Guide
44
www.qtech.ru
that described in
Configuration Guide
. If not, modify the serial port configuration parameters. If there is still no serial port
printed information, please contact TAC of QTECH for technical support.
Fault 4: 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 the
Configuration Guide
.
Fault 5: The newly-inserted expansion module fails to be powered on.
Fault Description:
The system is running, yet all LEDs on the panel of the newly-inserted expansion modules are OFF, and the port is faulty.
Troubleshooting:
Check whether the expansion module is connected correctly and whether the PWR1 and PWR2 LEDs turn yellow. If the
LEDs become yellow, it means the system is short of power, please add an RPS power module or change the power
module. If all checking are OK, but the newly-inserted expansion module still cannot be powered on, please contact TAC
of QTECH for technical support.
Fault 6: The link cannot be set up between fiber interfaces.
Fault Description:
The system runs normally. After the fiber interface is inserted into the optical module and the optical fiber is properly
connected, the link cannot be set up.
Troubleshooting:
First confirm whether the interface is a copper/fiber combo interface. If yes, it should be configured in fiber mode. Then, do
as follows:
Check whether the receiving and sending ends are wrongly connected. The sending end of the fiber interface
needs to be connected to the receiving end of the other fiber interface. You can check by changing the sequence
in which the two optical fibers are connected on the optical module.
Check whether the optical module wavelengths of the two sides are consistent. For example, an optical module
of 1310nm wavelength cannot be connected to an optical module of 1550nm wavelength.
Check whether the distance between the two sides exceeds the length indicated on the optical module.
Check whether the rates of the two sides match and whether the optical fiber type meets requirements. In
addition, for ports supporting different rate, check whether rate modes are configured correctly.
