23
Figure 27 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.
•
Do not keep operating the system with one failed fan tray.
•
Make sure all slots have a module or filler panel installed when the switch is operating.
•
When two fan trays fail during switch operation:
{
For an HPE 5940 or HPE 5940 2-slot switch, finish replacing the fan trays within
2 minutes.
{
For an HPE 5940 48SFP+ 6QSFP+, HPE 5940 48XGT 6QSFP+, HPE 5940 48SFP+
6QSFP28, HPE 5940 48XGT 6QSFP28, or HPE 5940 4-slot switch, finish replacing the fan
trays within 1 minute.
Installing a fan tray
CAUTION:
To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If
you encounter a hard resistance while inserting the fan tray, pull out the fan tray and insert it again.
