Juniper QFX Series User Manual

1. Ensure that the power supplies are fully inserted in the QFX3100 Director device and
that each of their handles is flush against the faceplate.
2. Ensure that the source power cord is inserted securely into the appliance inlet for each
AC power supply.
3. Switch on the site circuit breakers.
4. Press the power switch on the rear panel of the QFX3100 Director device to power on
the device.
NOTE: Pressing the power switch momentarily either causes the system
to power on or causes a graceful shutdown. Pressing the power switch
for 4 seconds or longer causes an abrupt power shutdown.
5. Observe the power supply faceplate LEDs. If the power supply is installed correctly
and functioning normally, the AC power supply LED is green.
6. On the external management device, monitor the startup process to ensure that the
system boots properly.
NOTE: After you poweron a power supply, waitforatleast60secondsbefore
youturn it off. After you poweroff a powersupply, wait for atleast60 seconds
before you turn it back on.
Related
Documentation
• Powering Off a QFX3100 Director Device on page 295
• AC Power Supply in a QFX3100 Director Device on page 30
• AC Power Cord Specifications for a QFX3100 Director Device on page 135
221Copyright © 2012, Juniper Networks, Inc.
Chapter 18: Installing a QFX3100 Director Device

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)