Appendix D Cooling System - HP HPE FlexFabric 5901 Series Installation Manual

Appendix D Cooling system

To dissipate heat timely and ensure system stability, the switch uses high-performance cooling
system. Consider the site ventilation design when you plan the installation site for the switch.
The switch uses hot-swappable fan modules. You can provide airflow from the power supply side to
the port side or from the port side to the power supply side for the switch by using different fan
modules. For heat dissipation, install two fan modules of the same model for the switch.
Table 27 Cooling system
Switch model
HPE 5901AF 48G 4XG
2QSFP+ Switch
Figure 33 Airflow from the port side to the power supply side (with HPE 5944 FAN Module
with Port to Power Airflow)
Figure 34 Airflow from the power supply side to the port side (with HPE 5944 FAN Module
with Power to Port Airflow)
Available fan
Airflow direction
module
HPE 5944 FAN
Module with Port to
From the port side to the power supply side
Power Airflow
(JL837A)
HPE 5944 FAN
Module with Power
From the power supply side to the port side
to Port Airflow
(JL838A)
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