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• The ground contact in the power outlet is securely connected to the ground in the power
distribution room or on the AC transformer side.
• The power cord is securely connected to the power outlet.
NOTE:
If the ground contact in the power outlet is not connected to the ground, report the problem and
reconstruct the grounding system.
Figure 23 Grounding through the PE wire of the AC power cord
(1) Three-wire AC power cable (2) Chassis rear panel
NOTE:
To guarantee the grounding effect, use the grounding cable provided with the switch to connect to
the grounding strip in the equipment room as long as possible.
Installing/removing a fan tray
Follow these guidelines when you install or remove a fan tray:
• Do not power on the switch when the switch has no fan trays installed.
• You must install two fan trays of the same model for the switch.
• When a fan tray fails during the switch operation and the ambient temperature is not higher than
27°C (80.6°F), replace the fan tray within 24 hours and keep the failed fan tray in position before
replacement. If the ambient temperature is higher than 27°C (80.6°F), replace the fan tray
immediately.
• Make sure all slots have a module or filler panel installed when the switch is operating.
• When two fan trays fail during switch operation:
{ Finish replacing the fan trays within 2 minutes on an HPE 5930-32 QSFP+/HPE 5930-32
QSFP+ TAA/HPE 5930-2Slot+2QSFP+/HPE 5930-2Slot+2QSFP+ TAA switch.
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