Figure 28: Upper/Lower Fan Tray; Figure 29: Lower Fan Tray Air Filter; Cooling System - Juniper MX2020 Hardware Manual

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Copyright © 2015, Juniper Networks, Inc.
The CB-REs and SFBs are equipped with an air divider to deflect the exhaust air from the
bottom half of the system out and direct the air to the top half MPCs.

Figure 28: Upper/Lower Fan Tray

1 1
2
1— Safety double latch system
WARNING: Before removing a fan tray, make sure the fan blades have stopped
completely.
WARNING: The fan trays use a double latch safety mechanism. Press and
hold the latch until the
latch while removing the fan trays.

Figure 29: Lower Fan Tray Air Filter

The air baffle is an optional component that can be purchased from Juniper Networks.
When installed over the upper fan tray access door, the air baffle dissipates exhausted
air away from the router.
Troubleshooting the MX2020 Cooling System on page 534
Maintaining the MX2020 Air Filter on page 341
Maintaining the MX2020 Fan Trays on page 345
Maintaining the MX2020 Air Baffle on page 344
2— STATUS
LED
LED turns off. Continue to press and hold the
STATUS
Chapter 6: Cooling System
55