The QFX3500 device provides FRU-to-port or port-to-FRU airflow depending on the
device model you purchase. Table 10 on page 30 lists the different QFX3500 device
models and their direction of airflow.
NOTE: In QFX Series device model names, AFI, or airflow in, describes
FRU-to-port airflow. AFO, or airflow out, describes port-to-FRU airflow.
NOTE: The front panel of the device where the power supplies, fan trays, and
management boards are located is the FRU side of the device.
Table 10: Airflow Direction in QFX3500 Device Models
Direction of AirflowModel
FRU-to-portQFX3500-48S4Q-ACR
FRU-to-portQFX3500-48S4Q-AFI
Port-to-FRUQFX3500-48S4Q-AFO
In the QFX3500 device models that have FRU-to-port airflow, the air intake to cool the
chassis is located on the front panel of the chassis, where the FRUs are installed. Air is
pulled into the chassis and pushed away from the fan trays and management board. Hot
air exhausts from the rear of the chassis, where the ports are located. See
Figure 15 on page 30.
Figure 15: FRU-to-Port Airflow Through the QFX3500 Chassis
In the QFX3500 device models that have port-to-FRU airflow, the air intake to cool the
chassis is located on the rear panel of the chassis, the side with access and uplink ports.
Copyright © 2017, Juniper Networks, Inc.30
QFX3500 Device Hardware Documentation
To Next Page
Loading...
Need help?
General