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    M40e and M160 Router Redundant Cooling System Components

    The M40e and M160 routers include the following cooling system components:

    • Front cooling subsystem—Cools the FPCs, PICs, and midplane. It includes a fan tray located behind the cable management system and a large, central impeller behind the craft interface (fan tray front left, fan tray front right, fan tray rear left, fan tray rear right, and front top blower).
    • Rear cooling subsystem—Cools the Switching and Forwarding Modules (SFMs), host module, PFE Clock Generators (PCGs), and power supplies. It includes one impeller located at the upper right of the chassis rear and another at the lower left (rear top blower and rear bottom blower). The upper and lower impellers are not interchangeable.

    Figure 1 shows the M40e and M160 router cooling system components and airflow.

    Figure 1: M40e and M160 Router Cooling System and Airflow

    M40e and M160
Router Cooling System and Airflow

    Figure 2 shows the M40e and M160 router cooling system components.

    Figure 2: M40e and M160 Router Cooling System Components

    M40e and M160
Router Cooling System Components

    Published: 2012-08-20