Cooling system of the 48G model/48G TAA model
When a back-to-front airflow fan tray (JC692A) is used, ambient air flows in through the air vents in the fan tray panel and the power supply panels, circulates through the chassis and the power supplies, and exhausts at the port side, as shown in Figure 52.
When a front-to-back airflow fan tray (JC693A) is used, ambient air flows in through the air vents in the port-side panel and the power supply panels, circulates through the chassis and the power supplies, and exhausts through the air vents in the fan tray panel, as shown in Figure 53.
Figure 52: Airflow through the switch chassis with the back-to-front airflow fan tray (JC692A)
(1) Power supply air vents | (2) Fan tray air vents |
(3) Port side air vents |
Figure 53: Airflow through the switch chassis with the front-to-back airflow fan tray (JC693A)
(1) Power supply air vents | (2) Fan tray air vents |
(3) Port-side air vents |
![[IMPORTANT: ]](images/important.png) | IMPORTANT: The chassis and the power supplies use separate air aisles. Make sure both aisles are not blocked. | |