Figure 20: An Arrow Icon and AFI Label Identifying Airflow Direction on
Power Supply Handle
Figure21: 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 directionof airflowin the chassis.Ensure that each powersupply
you install in the chassis has the same airflow direction. If you install power
supplies with two different airflow directions, Junos OS raises an alarm, and
the status (OK/!) LED blinks amber.
Table 13 on page 36 shows the different power supplies and their direction of airflow.
Table 13: Airfow Direction in QFX3500, QFX3600, or QFX3600-I AC Power Supplies
Direction of AirflowModel
FRU-to-port
•
JPSU-650W-AC-AFI
•
QFXC01-PWRACI-650A
Port-to-FRUJPSU-650W-AC-AFO
To avoid electrical injury, carefully follow instructions in “Connecting AC Power to a
QFX3500, QFX3600, or QFX3600-I Device” on page 85.
Related
Documentation
AC Power Cord Specifications for a QFX Series Device on page 56•
• AC Power Supply LEDs on a QFX3500, QFX3600, or QFX3600-I Device on page 39
Copyright © 2017, Juniper Networks, Inc.36
QFX3500 Device Hardware Documentation
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