Juniper QFX Series User Manual

Figure 46: DC Power Supply Faceplate for a QFX3500 Device
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5
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3
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5—1— ESD grounding pointFeed A input terminals
6—2— Fault LEDFeed B input terminals
7—3— Output LEDTerminal block
8—4— Input LEDEjector lever
The power supply provides FRU-side-to-port-side or port-side-to-FRU-side airflow
depending on the model you purchase. The power supplies have labels and arrows on
the handles that depict the direction of airflow (see Figure 47 on page 76). The label AFI
denotes FRU-side-to-port-side airflow, AFO denotes port-side-to FRU-side airflow.
Figure 47: Label Identifying Airflow Direction on Power Supply Handle
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CAUTION: Verify that the direction of the arrow 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
supplies with two different airflow directions, Junos OS raises an alarm, and
the status (OK/!) LED blinks amber.
Copyright © 2012, Juniper Networks, Inc.76
QFX3000 Hardware Documentation

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)