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Appendix D Cooling system
The cooling system of A5800 and A5820X switches is made up of the ventilation holes in the chassis, fan
trays, and built-in fans of hot swappable power supplies. To guarantee that this cooling system can work
effectively, consider the site ventilation design when you plan the installation site for the switches.
A5800-48G-PoE+ (2 slots)/A5800-48G-PoE+ TAA
(2 slots)
The A5800-48G-PoE+ (2 slots) and A5800-48G-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 shows 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 shows 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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