59
Appendix D Cooling system
CAUTION:
To guarantee heat dissipation, you must install fan trays of the same model for the switch.
To dissipate heat timely and ensure system stability, the switch uses the front-rear air aisle cooling
system. Consider the site ventilation design when you plan the installation site for the switch.
Table 38 Cooling system for the switch
Available fan trays
Airflow direction
X722 back-to-front fan tray
From the power supply side to the port side
X721 front-to-back fan tray
From the port side to the power supply side
Figure 59 Airflow from the power supply side to the port side through the HPE 5710-54HF
chassis (with X722 back-to-front fan tray)
Figure 60 Airflow from the port side to the power supply side through the HPE 5710-54HF
chassis (with X721 front-to-back fan tray)