Figure 72: Ac Power Supply In Qfx3500, Qfx3600, Or Qfx3600-I Devices; Figure 73: An Arrow Icon And Afi Label Identifying Airflow Direction On Power; Supply Handle; Figure 74: A Fan Icon Identifying Airflow Direction On Power Supply Handle - Juniper QFabric QFX3000-G Hardware Documentation

Copyright © 2018, Juniper Networks, Inc.

Figure 72: AC Power Supply in QFX3500, QFX3600, or QFX3600-I Devices

Handle Cord retainer
Ejector AC appliance
lever inlet
The power supply provides FRU-to-port or port-to-FRU airflow depending on the product
SKU you purchase. On legacy switches, or switches with an LCD, this airflow is called
back-to-front and front-to-back. The power supplies either have labels on the handles
that indicate the direction of the airflow or they have color-coded handles with a fan
icon. See Figure 74 on page 111
power supply with a blue handle denotes FRU-to-port airflow; a power supply with a
gold-colored handle denotes port-to-FRU airflow.
Figure 73: An Arrow Icon and AFI Label Identifying Airflow Direction on Power Supply
Handle

Figure 74: A Fan Icon Identifying Airflow Direction on Power Supply Handle

CAUTION: Verify that the direction of the airflow on the power supply handle
matches the direction of airflow in the chassis. Ensure that each power supply
you install in the chassis has the same airflow direction. If you install power
for an example of the power supply with the fan icon. A
Chapter 5: QFX3600 Overview
111