Juniper QFabric QFX3000-G Hardware Documentation page 449

Table 136: Four-Post Rack or Cabinet Mounting Hole Locations (continued)
Hole Distance Above U Division
2 0.88 in. (2.2 cm)
1 0.25 in. (0.6 cm)
Copyright © 2018, Juniper Networks, Inc.
Installing Cage Nuts for QFX3008-I Interconnect Device Four-Post Rack or Cabinet
Mounting on page 399
Installing the Small Mounting Shelf for QFX3008-I Interconnect Device Four-Post Rack
or Cabinet Mounting on page 399
Installing the Large Mounting Shelf and Spacer Bars for QFX3008-I Interconnect Device
Four-Post Rack or Cabinet Mounting on page 400
Installing Cage Nuts for QFX3008-I Interconnect Device Four-Post Rack or Cabinet
Mounting
For racks without threaded holes, you must install cage nuts on the rack or cabinet rails
in the locations specified in
location).
Before you begin, ensure that you have 22 cage nuts appropriate for your rack or cabinet.
To install the cage nuts in the proper locations:
On the front rack or cabinet, install cage nuts in the holes specified in
1.
Table 136 on page 398
On the rear rack or cabinet, install cage nuts in the holes specified in
2.
Table 136 on page 398
Installing the Small Mounting Shelf 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 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:
On the back of each rear rack rail, partially insert a mounting screw into the lowest
1.
hole specified in Table 136 on page 398
Chapter 29: Installing a QFX3008-I Interconnect Device
Large
Shelf
0.50 U X
0.14 U
Table 136 on page 398 (an
for the large shelf and the spacer bars.
for the small shelf.
for the small shelf.
Spacer Small
Bars Shelf
X
X
X indicates a mounting hole
399