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Juniper QFX Series User Manual

Juniper QFX Series
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General Safety Guidelines and Warnings on page 161
General Electrical Safety Guidelines and Warnings on page 191
DC Power Electrical Safety Guidelines on page 197
DC Power Grounding Requirements and Warning on page 200
DC Power Wiring Sequence Warning on page 201
DC Power Wiring Terminations Warning on page 202
DC Power Grounding Requirements and Warning
This topic applies to hardware devices in the EX Series product family, which includes
switches and the XRE200 External Routing Engine.
This topic also applies to hardware devices in the QFX Series.
An insulated grounding conductor that is identical in size to the grounded and ungrounded
branch circuit supply conductors but is identifiable by green and yellow stripes is installed
as part of the branch circuit that supplies the device. The grounding conductor is a
separately derived system at the supply transformer or motor generator set.
WARNING: When you install the device, the ground connection must always
be made first and disconnected last.
Waarschuwing Bij de installatie van het toestel moet de aardverbinding altijd
het eerste worden gemaakt en het laatste worden losgemaakt.
Varoitus Laitetta asennettaessa on maahan yhdistäminen aina tehtävä
ensiksi ja maadoituksen irti kytkeminen viimeiseksi.
Attention Lors de l'installation de l'appareil, la mise à la terre doit toujours
être connectée en premier et déconnectée en dernier.
Warnung Der Erdanschluß muß bei der Installation der Einheit immer zuerst
hergestellt und zuletzt abgetrennt werden.
Avvertenza In fase di installazione dell'unità, eseguire sempre per primo il
collegamento a massa e disconnetterlo per ultimo.
Advarsel Når enheten installeres, jordledningen alltid tilkobles først og
frakobles sist.
Aviso Ao instalar a unidade, a ligação à terra deverá ser sempre a primeira a
ser ligada, e a última a ser desligada.
¡Atención! Al instalar el equipo, conectar la tierra la primera y desconectarla
la última.
Copyright © 2012, Juniper Networks, Inc.200
QFX3000 Hardware Documentation

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Juniper QFX Series Specifications

General IconGeneral
CategorySwitch
SeriesQFX
Form Factor1U, 2U, and modular chassis options
Power SupplyRedundant, hot-swappable power supplies
Coolinghot-swappable fans
Virtual ChassisSupported on certain models
Typical UseData center, cloud
Operating SystemJunos OS
ManagementCLI
Key FeaturesHigh performance, low latency, automation
LatencySub-microsecond latency
Port DensityVaries by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)

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