Table 14: Airflow Direction in QFX5110 AC Power Supplies
Color of Power Supply HandleDirection of AirflowProduct Number
Juniper Azure BlueFRU-to-portJPSU-650W-AC-AFI
Juniper GoldPort-to-FRUJPSU-650W-AC-AFO
To avoid electrical injury, carefully follow instructions in “Connecting AC Power to a
QFX5110” on page 85.
Related
Documentation
AC Power Cord Specifications for a QFX Series Device•
• QFX5110 AC Power Specifications on page 57
• QFX5110 Management Panel on page 18
• QFX5110 Field-Replaceable Units on page 15
• Connecting AC Power to a QFX5110 on page 85
QFX5110 DC Power Supply
Except for the QFX5110-32Q-CHAS, the QFX5110 switches are shipped from the factory
with two power supplies (see Figure 17 on page 35). Each power supply is a hot-removable
and hot-insertablefield-replaceable unit (FRU) when the secondpower supply is installed
and running. You can install replacement power supplies in the two slots next to the fan
modules without powering off the switch or disrupting the switching function.
The DC power supply in QFX5110 is 650 W with dual feeds for power resiliency.
Figure 17: DC Power Supply for the QFX5110
3—1— Security latchTerminal block
4—2— HandleESD grounding point
NOTE: The DC power supply in the switch has four terminals labeled V-, V-,
V+, and V+ (see Figure 18 on page36) for connectingDC power source cables
labeled positive (+) and negative (–).
35Copyright © 2017, Juniper Networks, Inc.
Chapter 4: Power Supplies
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