78
Appendix D Cooling system
CAUTION:
To guarantee heat dissipation, you must install two 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 42 Cooling system for the switch
Switch model
Available fan
trays
Airflow direction
•
HPE 5940
•
HPE 5940 48SFP+ 6QSFP+
•
HPE 5940 48XGT 6QSFP+
•
HPE 5940 2-slot
LSWM1HFANSC
From the power supply side to the port side
LSWM1HFANSCB
From the port side to the power supply side
•
HPE 5940 48SFP+
6QSFP28
•
HPE 5940 48XGT 6QSFP28
LSWM1FANSC or
LSWM1HFANSC
From the power supply side to the port side
LSWM1FANSCB or
LSWM1HFANSCB
From the port side to the power supply side
HPE 5940 4-slot
LSWM1BFANSC
From the power supply side to the port side
LSWM1BFANSCB
From the port side to the power supply side
Figure 84 Airflow from the power supply side to the port side through the HPE 5940
chassis (with LSWM1HFANSC fan trays)
Figure 85 Airflow from the port side to the power supply side through the HPE 5940
chassis (with LSWM1HFANSCB fan trays)