M7i Cooling System Overview
The router cooling system consists of a fan tray, located along the left side of the chassis, that provides side-to-side cooling (see Figure 2). It connects directly to the router midplane. The fan tray is a single unit containing four individually fault-tolerant fans. If a single fan fails, the remaining fans continue to function indefinitely.
The fan tray is hot-removable and hot-insertable.
Figure 1: Fan Tray
M7i Airflow Through the Chassis
Figure 2 shows airflow through the chassis and the location of the fan tray.
Figure 2: Airflow Through the Chassis
