H3C Technologies H3C S5560 Series Switches - Manual (Page 31)

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• The LSPM1FANSB has a red handle and provides port-to-power air flow.
For more information about the fan trays, see " Appendix B FRUs and compatibility matrixes ."
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.
To install a fan tray:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is correctly grounded.
2. Unpack the fan tray and verify that the fan tray model is correct.
3. Grasp the two handles of the fan tray with the side marked TOP facing up, and slide the fan tray
along the guide rails into the slot until the fan tray seats in the slot and has a firm contact with the
backplane.
Figure 27 Installing a fan tray
IMPORTANT:
•
At the first login to the switch, use the fan prefer-direction command to set the airflow direction of the
switch to be the same as the airflow direction of the fan tray. If the fan tray has a different airflow
direction than the switch, the system outputs traps and logs to notify you to replace the fan tray.
• By default, the switch uses the same airflow direction (power-to-port) as the LSPM1FANSA fan tray.