14
Installing/removing fan trays
CAUTION:
The switch has three fan tray slots. For adequate heat dissipation, follow these guidelines:
•
The switch is provided with the fan tray slots empty. Before powering on the switch, make sure all
fan tray slots have fan trays installed and the fan trays are the same model.
•
Make sure each slot has a module or filler panel installed when the switch is operating.
•
If one fan tray fails when the switch is operating, replace the fan tray immediately and keep the
failed fan tray in position before the replacement. If two fan trays fail, finish replacing at least one
fan tray within 1 minute. Replace the fan trays one after another. Do not remove them
simultaneously.
The switch uses a front-rear air aisle. It can provide airflow from the power module side to the port
side or from the port side to the power module side by using different fan trays.
The LSWM1BFANSC and LSWM1BFANSCB fan trays are available for the switch. The
LSWM1BFANSC fan tray provides airflow from the power module side to the port side. The fan tray
handles are blue. The LSWM1BFANSCB fan tray provides airflow from the port side to the power
module side. The fan tray handles are red. Select LSWM1BFANSC or LSWM1BFANSCB fan trays
for the switch based on the airflow requirements. For the fan tray specifications, see fan trays in
"
NOTE:
Both the LSWM1BFANSC and LSWM1BFANSC fan trays are available in black and silver models.
Silver models support electronic labels and black models do not.
The installation and removal procedures are the same for the LSWM1BFANSC and
LSWM1BFANSCB fan trays. The following installation and removal procedures use the
LSWM1BFANSC fan tray as an example.
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
module side.
For more information about the
fan prefer-direction
command, see device management in
H3C
S9820-64H 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.
