2-14
IMPORTANT:
Before powering on the switch, make sure the fan tray airflow direction and the preferred airflow
direction of the switch are the same. If they are not the same, the system generates traps and logs.
You can use the
fan prefer-direction
command to configure the preferred airflow direction
for the switch. By default, the preferred airflow direction of the switch is from the port side to the
power module side. For more information about the
fan prefer-direction
command, see
device management in
H3C S9820-8C Switch Fundamentals Command Reference
.
To install a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Unpack the fan tray and verify that the fan tray model is correct.
3.
Orient the fan tray with the adapter facing upwards. Grasp the handle of the fan tray with one
hand and support the fan tray bottom with the other. Slide the fan tray along the guide rails into
the slot until the fan tray is fully seated in the slot and has a firm contact with the backplane. See
The fan tray and the fan tray slot each have an alignment hole. Orient the fan tray as indicated
by alignment holes. Ensure that the alignment hole in the fan tray is aligned with that in the
switch after the fan tray installation.
Figure2-15 Installing a FAN-80B-1-B fan tray
Removing a fan tray
WARNING!
•
Ensure electricity safety and never touch the rotating fans when you hot-swap a fan tray.
•
To prevent a fan from causing loud noise, do not touch the fan blades and rotation axis, even if
the fan is not rotating.
To remove a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Press the red part of the handle with one hand and pull the fan tray part way out of the slot.
Supporting the fan tray bottom with the other, pull the fan tray completely out of the slot along
the guide rails.
3.
Put the removed fan tray in an antistatic bag.
1
2
Alignment hole of the fan tray
