Juniper QFX Series User Manual

Before you begin, ensure that you have the following parts and tools available to install
the small mounting shelf:
•
A Phillips (+) screwdriver, number 2 or 3, depending on the size of your rack mounting
screws
•
Six mounting screws appropriate for your rack to attach the small mounting shelf to
the rack
To install the small mounting shelf:
1. On the back of each rear rack rail, partially insert a mounting screw into the lowest
hole specified in Table 60 on page 228 for the small shelf.
2. Install the small shelf on the back rack rails. Rest the bottom slot of each ear on a
mounting screw. The small shelf installs on the back of the rearrails, extending toward
the center of the rack. The bottom of the small shelf should align with the bottom of
the large shelf.
3. Partially insert screws into the open holes in the ears of the small shelf.
4. Tighten all the screws completely.
Installing the Large Mounting Shelf and Spacer Bars for QFX3008-I Interconnect Device
Four-Post Rack or Cabinet Mounting
To mount the chassis on a four-post rack or cabinet, you must first install the mounting
shelves and spacer bars on the rack or cabinet.
Before you begin, ensure that you have the following parts and tools available to install
the large mounting shelf and spacer bars:
•
A Phillips (+) screwdriver, number 2 or 3, depending on the size of your rack mounting
screws
•
16 mounting screws appropriate for your rack to attach the large mounting shelf and
spacer bars to the rack
To install the large mounting shelf and spacer bars:
1. On the front of each front rack rail, partially insert a mounting screw into the lowest
hole specified in Table 60 on page 228 for the large shelf.
2. Install the large shelf on the front rack rails. Rest the bottom slot of each ear on a
mounting screw.
3. Partially insert a mounting screw into the top hole in each ear of the large shelf.
4. Tighten all the screws completely.
5. The device is shipped with each spacer bar attached to the rear of each front-mounting
flange. Remove each spacer bar by removing the seven screws that fasten the spacer
bar to the front-mounting bracket.
Copyright © 2012, Juniper Networks, Inc.230
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)