Juniper QFX Series User Manual

the cables to a suitable and safe earth ground before connecting them to the
system.
Related
Documentation
General Safety Guidelines and Warnings on page 161•
• See EX2200 Switches Hardware Overview for the ESD point location.
• See Rear Panel of an EX3200 Switch for the ESD point location.
• See Rear Panel of an EX3300 Switch for the ESD point location.
• See Rear Panel of an EX4200 Switch for the ESD point location.
• See Front Panel of an EX4500 Switch for the ESD point location.
• See Chassis Physical Specifications of an EX6210 Switch for the ESD point location.
• See Chassis Physical Specifications of an EX8208 Switch for the ESD point location.
• See Chassis Physical Specifications of an EX8216 Switch for the ESD point location.
• See Front Panel of a QFX3500 Device on page 65 for the ESD point location.
AC Power Electrical Safety Guidelines
This topic applies to hardware devices in the EX Series product family, which includes
switches, the EX Series Redundant Power System (RPS), and the XRE200 External
Routing Engine.
This topic also applies to hardware devices in the QFX Series.
CAUTION: For devices with AC power supplies, an external surge protective
device (SPD) must be used at the AC power source.
The following electrical safety guidelines apply to AC-powered devices:
•
Note the following warnings printed on the device:
“CAUTION: THIS UNIT HAS MORE THAN ONE POWER SUPPLY CORD. DISCONNECT
ALL POWER SUPPLY CORDS BEFORE SERVICING TO AVOID ELECTRIC SHOCK.”
“ATTENTION: CET APPAREIL COMPORTE PLUS D'UN CORDON D'ALIMENTATION.
AFIN DE PRÉVENIR LES CHOCS ÉLECTRIQUES, DÉBRANCHER TOUT CORDON
D'ALIMENTATION AVANT DE FAIRE LE DÉPANNAGE.”
•
AC-powered devices are shipped with a three-wire electrical cord with a grounding-type
plug that fits only a grounding-type power outlet. Do not circumvent this safety feature.
Equipment grounding must comply with local and national electrical codes.
•
You must provide an external certified circuit breaker rated minimum 20 A in the building
installation.
Copyright © 2012, Juniper Networks, Inc.194
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)