Figure 30: Airflow Through The Chassis - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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Figure 30: Airflow Through the Chassis

Upper Fan trays
Card cage
Card cage
Airflow divider
Card cage
Lower fan trays
The MX2020 router provides a two-stage front-to-back cooling system. Air is pushed
into the bottom inlet and up through the lower fan tray, and exits through the opening
between the backplanes in the center of the chassis. This cools the bottom MPCs, half
of the SFBs and CB-REs. Air is pulled through the SFBs and all the CB-REs in the center
of the chassis and is exhausted out the upper rear of the system through an adjustable
air baffle that is attached to the upper fan tray access door, (see
The adjustable air baffle is used to direct exhausted air away from the router.
Power
supply
cooling
Figure 31 on page
Copyright © 2013, Juniper Networks, Inc.
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