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Juniper QFX Series User Manual

Juniper QFX Series
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Varning! Vid installation av enheten måste jordledningen alltid anslutas först
och kopplas bort sist.
Related
Documentation
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 Disconnection Warning on page 198
DC Power Wiring Sequence Warning on page 201
DC Power Wiring Terminations Warning on page 202
DC Power Wiring Sequence 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.
WARNING: Wire the DC power supply using the appropriate lugs. When
connecting power, the proper wiring sequence is ground to ground, +RTN to
+RTN, then –48 V to –48 V. When disconnecting power, the proper wiring
sequence is –48 V to –48 V, +RTN to +RTN, then ground to ground. Note
that the ground wire must always be connected first and disconnected last.
Waarschuwing De juiste bedradingsvolgorde verbonden is aarde naar aarde,
+RTN naar +RTN, en –48 V naar 48 V. De juiste bedradingsvolgorde
losgemaakt is en –48 naar –48 V, +RTN naar +RTN, aarde naar aarde.
Varoitus Oikea yhdistettava kytkentajarjestys on maajohto maajohtoon,
+RTN varten +RTN, –48 V varten 48 V. Oikea irrotettava kytkentajarjestys
on –48 V varten 48 V, +RTN varten +RTN, maajohto maajohtoon.
Attention Câblez l'approvisionnement d'alimentation CC En utilisant les
crochets appropriés à l'extrémité de câblage. En reliant la puissance, l'ordre
approprié de câblage est rectifié pour rectifier, +RTN à +RTN, puis –48 V à
–48 V. En débranchant la puissance, l'ordre approprié de câblage est –48 V
à –48 V, +RTN à +RTN, a alors rectifié pour rectifier. Notez que le fil de masse
devrait toujours être relié d'abord et débranché pour la dernière fois. Notez
que le fil de masse devrait toujours être relié d'abord et débranché pour la
dernière fois.
Warnung Die Stromzufuhr ist nur mit geeigneten Ringösen an dasDC Netzteil
anzuschliessen. Die richtige Anschlusssequenz ist: Erdanschluss zu
Erdanschluss, +RTN zu +RTN und dann -48V zu -48V. Die richtige Sequenz
zum Abtrennen der Stromversorgung ist -48V zu -48V, +RTN zu +RTN und
201Copyright © 2012, Juniper Networks, Inc.
Chapter 16: Power and Electrical Safety Information

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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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