Juniper QFX5120 Series Hardware Guide

Site Preparation Checklist for QFX5120 Switches
The checklist in Table 24 on page 65 summarizes the tasks you need to perform to prepare a site for
installing a QFX5120 switch.
Table 24: Site Preparation Checklist
DatePerformed byFor More InformationItem or Task
Environment
“Environmental Requirements and
Specifications for QFX5120
Switches” on page 66
Verify that environmental factors such as
temperature and humidity do not exceed
switch tolerances.
Power
“Clearance Requirements for
Airflow and Hardware
Maintenance for QFX5120
Switches” on page 71
Measure the distance between external
power sources and the switch installation
site.
Locate sites to connect system grounding.
•
AC Power Supply
Specifications for QFX5120
Switches on page 52
•
QFX5120 DC Power
Specifications on page 60
Calculate the power consumption and
requirements.
Hardware Configuration
“QFX5120 Switches Hardware
Overview” on page 21
Choose the number and types of switches
you want to install.
Rack or Cabinet
•
Rack Requirements for
QFX5120 Switches on page 69
Verify that the rack meets the minimum
requirements for installing the switch.
Plan rack or cabinet location, including
required space clearances.
Secure the rack or cabinet to the floor and
building structure.
65

Juniper QFX5120 Series Specifications

General

Rack Units	1 U
Junos OS	Yes
Form Factor	Fixed
Power Supply	Dual, hot-swappable
Cooling	Front-to-back or back-to-front airflow
Fans	Hot-swappable
Operating Temperature	32°F to 104°F (0°C to 40°C)
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Humidity	5% to 90% non-condensing
AC Power Input	100 to 240 VAC
Management Ports	1x RJ-45 console, 1x USB, 1x RJ-45 management