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Appendix D Cooling system
The cooling system of 5800 and 5820X switches comprises the ventilation holes in the chassis, fan trays,
and built-in fans of hot swappable power supplies. To guarantee that this cooling system can effectively
work, you must consider the site ventilation design when you plan the installation site for the switches.
5800-48G-PoE+ (2 slots)/5800-48G-PoE+ TAA (2
slots)
The 5800-48G-PoE+ (2 slots) and 5800-48G-PoE+ TAA (2 slots) switch chassis are 2U high and use
separate air aisles for their upper half and lower half. Make sure that the two air aisles have good
ventilation.
• Figure 94 sh
ows the airflow through the lower half of the chassis. Cool air flows in from the left side
of the chassis, circulates through the lower half of the chassis and the power supplies, and exhausts
through the air vents in the fan tray panel and the power supply panels.
• Figure 95 sh
ows the airflow through the upper half of the chassis. Cool air flows in from the left side
of the chassis, circulates through the upper half of the chassis, including the OAP card and the
interface card, and exhausts through the outlet air vents in the fan tray panel.
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