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Hardware Problems 39
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When a problem is detected with a fan, the front panel Alarm LED lights up in orange, the
LED of the fan unit in which the error has occurred lights up in orange, and an error is
recorded in the event log. If a fan error occurs, contact the vendor's service department.
When XG2000 overheats, the Alarm LED lights up in orange, and a temperature error is
recorded in the event log. In this case, check that the ambient and internal rack temperatures
are within the specified temperature range, adjust them if they are not and try turning the
XG2000 back on. When error occurs even though the ambient rack temperatures are accept-
able, turn the XG2000 off and contact the vendor's service department.
When a voltage problem is detected, the Alarm LED lights up in orange, and an error is
recorded in the event log. In this case, turn the XG2000 off and contact the vendor's service
department.
When a power supply problem is detected, the Alarm LED lights up in orange, the power sup-
ply LED of the power supply unit in which the error has occurred lights up in orange, and an
error is recorded in the event log. Verify that the AC power supply for the failed power supply
unit is normal and the cable has not come loose.
If some other reason has caused the power supply LED to light up, contact the vendor's ser-
vice department.
Startup diagnostic tests are run after the power is turned. If a memory error is detected at this
stage, the Alarm LED blinks, but an event log entry is not created. If a memory error is
detected during operation, an event log entry is created and the system automatically
reboots. Note that whether or not a memory error results in an event log entry is a matter of
timing.
If memory errors occur repeatedly, contact the vendor's service department.
When a problem is detected with a XFP module, an error is recorded in the event log. In addi-
tion, if the transceiver in the XFP module overheats, the system shutdown the XFP module.
3-2 Hardware Problems
This section explains what should be done when a fan, temperature, Voltage, power supply, or
memory or XFP error occurs. Contact the vendor's service department when the following errors
occurred.
Fan error
Temperature error
Voltage error
Power supply error
Memory error
XFP error