Clearance Requirements for Airflow and Hardware Maintenance for the MX2020 Router

When planning the installation site, you need to allow sufficient clearance around the rack (seeFigure 1 and Figure 2):

For the cooling system to function properly, the airflow around the chassis must be unrestricted.
For service personnel to remove and install hardware components, there must be adequate space at the front and back of the router. At least 36 in. (91.44 cm) is required both in front of and behind the router.

Airflow must always be from front to back with respect to the rack to ensure that fresh air from the front of the rack is supplied to the inlets, and exhaust exits the rear of the rack. Care must also be taken around cables to ensure that no leakage of air in situations where recirculation may result.

Note:
There are no additional clearance requirements to accommodate the depth of the MX2020 Power Distribution Modules (PDMs), and Power Supply Modules (PSMs); they are within specification.
An MX2020 router with an extended cable manager requires extra clearance to accommodate the depth of 37.46 in. (95.1 cm).

Figure 1: Chassis Dimensions and Clearance Requirements for the MX2020 Router with the Standard Cable Manager

Figure 2: Chassis Dimensions and Clearance Requirements for the MX2020 Router with the Extended Cable Manager

Note:

There must be a minimum of 45 U of usable rack space when you install the MX2020 router into a 45-U rack.