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    M10i Router Redundant Cooling System Components

    The M10i router cooling system consists of two fan trays, located along the left and right side of the chassis, that provide side-to-side cooling (see Figure 1). They connect directly to the router midplane. Each fan tray is a single unit containing eight individually fault-tolerant fans. If a single fan fails, the remaining fans continue to function indefinitely. For proper airflow, the primary fan tray should be installed in slot 1 (the left slot looking at the chassis from the rear) and must be installed for proper cooling at all times. The redundant fan tray, if present, should be installed in slot 0 on the right. This fan tray provides additional cooling and redundancy. The fan tray is hot-removable and hot-insertable.

    Caution: Do not remove both fan trays for more than one minute while the router is operating. The fans are the sole source of cooling, and the router will overheat when they are absent.

    Figure 1: M10i Router Cooling System Components and Airflow

    M10i Router Cooling
System Components and Airflow

    Published: 2012-08-20