Juniper QFX3500 - Chapter 3 Cooling System and Airflow; Cooling System and Airflow for a QFX3500 Device; Figure 13: Fan Tray for a QFX3500 Device; Figure 14: Management Board for a QFX3500 Device

CHAPTER 3
Cooling System and Airflow
•
Cooling System and Airflow for a QFX3500 Device on page 29
•
Fan Tray LED on a QFX3500 Device on page 33
Cooling System and Airflow for a QFX3500 Device
The cooling system in a QFX3500 device consists of two field-replaceable unit (FRU)
fan trays with two fan modules each (see Figure 13 on page 29) and two fan modules on
the management board FRU (see Figure 14 on page 29). In addition, the power supplies
have internal fans to cool themselves.
Figure 13: Fan Tray for a QFX3500 Device
g050011
Fan modules
EjectorLED
Figure 14: Management Board for a QFX3500 Device
g050021
Management
ports
USB
port
Console
port
Fan modules
Chassis
status LEDs
LCD display
QFX3500-48S4Q
29Copyright © 2017, Juniper Networks, Inc.