Juniper QFX Series User Manual

NOTE: In a rack, the device uses 21 U. You can mount two QFX3008-I
Interconnectdevices on a 42 U rackprovided that the racks meet the strength
requirements to support the combined weight of the devices. If you are
mounting two QFX3008-I Interconnect devices on a rack, mount the first
device on the bottom of the rack.
Figure 60: Installing the Mounting Hardware for a Four-Post Rack or
Cabinet
g050124
For a four-post rack or cabinet, Table 60 on page 228 specifies the holes in which you
insert mounting screws (an X indicates a mounting hole location), and cage nuts if needed.
The hole distances are relative to one of the standard “U” divisions on the rack. For
reference, the bottom of all mounting shelves is at 0.04 in. (0.02 U) above a U division.
Table 60: Four-Post Rack or Cabinet Mounting Hole Locations
Small
Shelf
Spacer
Bars
Large
ShelfDistance Above U DivisionHole
X16.86 U29.51 in. (74.9 cm)51
X13.86 U24.26 in. (61.6 cm)42
X10.86 U19.01 in. (48.3 cm)33
X9.86 U17.26 in. (43.8 cm)30
Copyright © 2012, Juniper Networks, Inc.228
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)