2-17
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.
CAUTION:
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 supply side.
For more information about the
fan prefer-direction
command, see device management in
H3C S9820-64H Switch Fundamentals Command Reference
.
The switch supports shipping with fan trays and power supplies installed. If your switch came with
fan trays preinstalled, skip this section.
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 "TOP" mark on top. Grasp the handle of the fan tray with one hand
and support the fan tray bottom with the other, and 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
Figure2-17 Installing an LSWM1BFANSC 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.